820 Services from intel.rallylive.ca

Performs a comprehensive fraud and phishing risk assessment of a domain, covering age, DNS/mail hygiene, HTTPS, DNSBL, typosquatting signals, and an overall risk level.

Returns a comprehensive A-F security grade for a domain covering HTTPS, HSTS, security headers, cookie flags, DNS hygiene, TLS validity, and server header exposure.

Fetches and parses a publisher's ads.txt file, listing authorized ad systems with account IDs, relationship types (DIRECT/RESELLER), totals per relationship, and top ad exchanges.

Reads a domain's robots.txt and reports whether 20+ known AI/LLM crawlers are allowed, blocked, or unmentioned, plus an overall AI access stance and TDM/ai.txt hints.

Returns current air quality data for a location including PM2.5, PM10, ozone, NO2, SO2, CO, US AQI, European AQI, and a plain-language category.

Extracts all analytics and tracking tag IDs (Google Analytics, GTM, Google Ads, Meta Pixel, Hotjar, Clarity, HubSpot, LinkedIn, TikTok, Pinterest) from a webpage's HTML

Returns all announced IPv4 and IPv6 BGP prefixes for a given Autonomous System Number (ASN), with counts and samples.

Extracts author name, byline, publisher, and publication/modification dates from a web page using meta tags, schema.org, rel=author links, and byline patterns.

Extracts all links from a given webpage and HEAD-requests up to 30 of them (external links first), reporting HTTP status per link and listing broken (4xx/5xx/unreachable) ones.

Verifies up to 20 email addresses in a single call, returning syntax, MX, disposable, role-address, free-provider flags, mail provider, deliverability verdict, and a batch summary.

Enriches up to 20 IPv4 addresses in a single call with public/private classification, ASN, owner, country, reverse DNS, and cloud provider detection.

Grades up to 10 URLs on their HTTP security headers (HSTS, CSP, X-Frame-Options, etc.), returning an A–F score and list of missing headers per URL, sorted worst-first.

Checks up to 20 URLs in a single call for availability, HTTP status, latency, redirect chain, and final URL, returning per-URL results plus aggregate up/down totals.

Looks up WHOIS/RDAP registration data for up to 10 domains in a single call, returning registrar, registration date, expiry date, nameservers, and domain age.

Fetches and parses HTTP caching headers for a URL, including Cache-Control directives, ETag, Last-Modified, Expires, Age, and CDN cache status headers.

Checks a web page's rel=canonical tag, whether it is self-referencing, absolute, on the same host, the final URL after redirects, and noindex status to catch duplicate-content and indexing mistakes.

Detects which CDN or WAF provider serves a website by analyzing HTTP response headers, server names, and the announcing network of the site's IP address.

Detects whether an IP address belongs to a CDN or reverse proxy (Cloudflare, Akamai, Fastly, CloudFront, etc.) by analyzing the announcing network.

Retrieves full certificate-transparency log history for a domain, grouped by issuer with first/last issuance dates, valid-cert counts, and the 20 most recent certificate entries.

Returns all Subject Alternative Names (SANs) from the most recent TLS certificate for a domain, sourced from certificate-transparency logs, including issuer, validity window, and days remaining.

Detects which cloud or hosting provider (AWS, GCP, Azure, Cloudflare, etc.) is behind an IP address or hostname, using ASN data, plus a CDN flag.

Detects the CMS platform and JavaScript framework used by a website, including version hints from generator tags and server headers.

Extracts all code blocks from a webpage, returning each block's language hint, line count, and text content, plus per-language counts.

Converts a color (hex, RGB, HSL, or CMYK) into all equivalent formats, finds the nearest CSS color name, and returns WCAG contrast ratios against white and black, luminance, and a complementary color.

TCP-connects to 12 well-known ports on a target host and reports which are open, providing a quick exposure check.

Returns a comprehensive B2B enrichment record for a company domain, including name, description, social profiles, contact emails, tech stack, DNS/mail provider, HTTPS status, trust score, and detected SaaS vendors.

Checks whether a webpage is served with gzip, brotli, or zstd compression, reporting the negotiated content-encoding, transfer vs decoded size, and Vary header.

Finds publicly listed contact email addresses (info@, sales@, support@, etc.) on a company's homepage, along with the domain's mail provider and MX record status.

Returns detailed text statistics for a web page including word count, sentence count, paragraphs, headings, links, images, code blocks, lexical diversity, and longest paragraph.

Audits HTTP Set-Cookie headers for a given URL, reporting each cookie's security flags (Secure, HttpOnly, SameSite), expiry, domain, path, and counts of cookies missing key flags.

Sends a real HTTP request and OPTIONS preflight to a URL and reports CORS policy headers, origin allowance, wildcard use, and credential risks.

Returns comprehensive country facts including official name, ISO codes, capital, region, population, area, currencies, languages, calling code, TLD, timezones, neighbours, and flag from the REST Countries API.

Checks whether a given URL path is allowed or disallowed for crawling by fetching and parsing the site's robots.txt, returning the access decision, matching rule, crawl-delay, and declared sitemaps.

Parses and explains a cron expression in plain English, validates its syntax, and returns the next 5 scheduled run times in UTC.

Evaluates a cron expression and returns the next 10 scheduled run times in UTC, a plain-English description, and the interval between runs

Returns current USD price, 24h change, market cap, and 24h volume for a cryptocurrency by coin ID or symbol, powered by CoinGecko.

Extracts published and modified dates from a web page's meta tags, schema.org markup, and body text, returning all found dates plus earliest, latest, and a best-guess publication date.

Resolves a did:web DID identifier or domain to its DID document, returning verification methods, authentication references, services, and document validity.

Detects whether an email address or domain is disposable/temporary, free webmail, or a role address, and returns MX presence and a deliverability verdict.

Tests common DKIM selectors against a domain and returns any public keys found, enabling email authentication auditing.

Tests 50 common DKIM selectors against a domain and reports all published DKIM keys with their type and strength, revealing which email services the domain uses.

Parses and validates a DMARC TXT record string, returning policy settings, report addresses, alignment modes, enforcement status, and warnings for common misconfigurations.

Fetches and parses a domain's DMARC TXT record, reporting policy enforcement level, reporting addresses, alignment modes, and missing or weak configuration.

Fetches all common DNS record types (A, AAAA, MX, TXT, NS, SOA, CNAME, CAA, HTTPS) plus DNSSEC validation state for a domain in a single call.

Resolves a domain name to its IPv4 addresses via DNS-over-HTTPS, returning addresses, TTL, record count, DNSSEC validation status, and response code.

Checks whether an IPv4 address is listed on major DNS blacklists (Spamhaus ZEN, SpamCop, Barracuda, SORBS, UCEPROTECT, PSBL) and returns each listing with its return codes.

Snapshots a domain's A, AAAA, MX, NS, TXT, and CAA records, compares with the previous snapshot (stored 90 days), and reports which record types changed since the last call.

Resolves the CNAME alias target chain for a hostname, returns TTL, and flags dangling CNAMEs (targets that don't resolve) as subdomain-takeover risk indicators.

Resolves a domain's DNS A/AAAA records, fetches the site over HTTPS, and checks whether the HTTP response is consistent with DNS — detecting CDN fronting, CNAME chains, dangling DNS, and stale records.

Performs a comprehensive DNS lookup for a domain, returning A records, MX records with priority, TXT records, inferred mail provider, and SPF/DMARC presence in a single JSON call.

Looks up MX records for a domain, returning mail exchanger hosts, priorities, TTL, and the detected mail provider (e.g. Google, Microsoft 365, Proofpoint, Zoho).

Looks up the authoritative nameservers (NS records) for a domain and identifies the DNS hosting provider (e.g. Cloudflare, Route 53, Google Cloud DNS).

Resolves a domain's A and MX records across Cloudflare (1.1.1.1), Google (8.8.8.8), and Quad9 resolvers to verify DNS propagation consistency after a record update or migration.

Identifies which DNS hosting provider(s) serve a domain by analyzing its nameservers, covering major providers like Cloudflare, AWS Route 53, Google Cloud DNS, Azure, and more.

Checks a domain's DNSSEC status including DS and DNSKEY record presence, resolver validation (AD flag), and signing algorithms used.

Fetches the DNS Start of Authority (SOA) record for a domain, returning primary nameserver, admin contact, serial number, and all zone timers as structured JSON.

Looks up DNS SRV records for a domain, returning parsed service discovery data including priority, weight, port, and target host for protocols like SIP, XMPP, LDAP, Minecraft, and Kerberos.

Returns cache time-to-live values for A, AAAA, MX, NS, and TXT DNS records for a domain, with plain-English notes flagging values that are too high for safe migration or unusually low.

Fetches all DNS TXT records for a domain, including SPF, DKIM, and SaaS verification tokens, with TTL values

Resolves a random non-existent subdomain to detect whether a DNS zone has a wildcard record that answers all queries, affecting subdomain enumeration accuracy, email catch-all behavior, and phishing risk.

Returns up to 50 newest Docker Hub image tags with last-updated dates, compressed sizes, and supported architectures, with optional substring filtering.

Returns the expiration date, days until expiry, registration date, registrar, and status codes for a domain via RDAP, plus renewal-urgency flags.

Returns days until a domain expires, expiry/registration/last-updated dates, registrar info, and EPP status codes via RDAP, flagging renewals due within 30 days or domains in grace/redemption periods.

Returns a comprehensive domain profile including WHOIS/RDAP, DNS records, mail security (SPF/DMARC), tech stack, website metadata, HTTP/HTTPS status, and a 0-100 trust/reputation score in a single JSON call.

Returns a 0–100 trust/legitimacy score for any domain, based on age, DNS/mail hygiene, HTTPS, metadata quality, social presence, and crawlability signals.

Returns a comprehensive email authentication and deliverability audit for a domain, including SPF, DMARC, DKIM, MTA-STS, BIMI, and MX checks, combined into a 0-100 score with an A-F grade and plain-English findings.

Runs a full domain-intelligence report on the domain extracted from an email address, including registration, DNS, homepage metadata, social profiles, tech stack, trust score, and free/disposable provider detection.

Validates an email address or domain with syntax checks, DNS lookups, mail provider detection, disposable/role/free-webmail flags, SPF/DMARC presence, and a deliverability verdict

Analyzes up to 50 email addresses in one call and returns a hygiene report with duplicate detection, syntax validation, disposable/role/free-webmail flagging, MX record checks, and a keep/review/remove split.

Normalizes an email address to its canonical form by lowercasing, stripping plus-tags, and applying provider-specific rules (Gmail dot-insensitivity, googlemail.com alias, etc.) for deduplication.

Detects whether an email address or domain is hosted on consumer webmail (Gmail, Outlook.com, Yahoo, iCloud, Proton) or business email hosting (Google Workspace, Microsoft 365, Zoho, Proofpoint) using domain and MX record analysis.

Retrieves every icon a website declares (favicon, apple-touch-icon, mask-icon, manifest icons) with sizes and types, plus whether /favicon.ico exists, for use as company logos in UIs.

Fetches and parses the NodeInfo document for a Fediverse server, returning software name/version, supported protocols, user statistics, local post counts, registration status, and federation services.

Fetches an RSS/Atom feed (auto-discovering it from a page URL), returns the newest item's title, link, and age in hours, item count, average posting interval, staleness status, and items new since the last call.

Fetches and validates an RSS or Atom feed, checking format, well-formedness, required elements, item counts, and content type, returning a pass/fail result with detailed errors and warnings.

Extracts and classifies all links found in a webpage's footer, categorizing them as privacy policy, terms of service, contact, careers, social profiles, app-store links, and more.

Detects and classifies all forms on a webpage, returning each form's action URL, HTTP method, field names/types, form classification, and HTTPS security status.

Returns a paginated list of free public-domain and free-licensed English-language books from Project Gutenberg and Internet Archive, with download links, searchable by title, author, or subject.

Search a catalogue of free, legally downloadable works including public-domain books, audiobooks, and films from Project Gutenberg, LibriVox, and Internet Archive, returning metadata and direct download links.

Fetches the latest release metadata for a GitHub repository, including tag, name, date, prerelease flag, author, release notes, and downloadable assets.

Fetches the raw README text of any GitHub repository, returning the markdown content (up to 20k chars), matched filename, branch, headings list, content length, and raw URL.

Fetches public GitHub repository metadata including description, stars, forks, open issues, language, license, topics, and dates via the GitHub API.

Returns a byte-level and percentage breakdown of programming languages used in a GitHub repository, including primary language, total bytes, and language count.

Returns the SPDX license identifier, full name, file path, permissive/copyleft classification, and permissions/conditions/limitations metadata for a given GitHub repository.

Probes a URL to detect whether it is a GraphQL endpoint, whether introspection is enabled, and returns schema metadata including root type names, type count, and first 40 query fields.

Checks whether an email address has a public Gravatar avatar and profile using its SHA-256 hash, and returns the avatar and profile URLs if found.

Returns the top N Hacker News front-page stories with title, URL, score, author, comment count, and age via the official HN API.

Resolves a hostname to all its IPv4 and IPv6 addresses, with ASN, network owner, country, and cloud/hosting provider attribution for each IPv4.

Extracts and validates all hreflang alternate link declarations from a webpage, including language/region targets, x-default, self-references, and duplicate checks.

Lints raw HTML or a URL for common issues including unclosed tags, missing doctype/lang/title/charset/viewport, images without alt, links without href or text, duplicate IDs, inline event handlers, and deprecated tags.

Fetches the raw HTML source of a URL (up to 500 KB), returning page status, final URL after redirects, content type, byte size, and response headers.

Fetches a web page and converts every HTML table into structured JSON arrays with header detection, cleaned cell content, row/column counts, and captions.

Checks a domain for HTTP/3 (QUIC), HTTP/2, and Encrypted Client Hello (ECH) support by inspecting DNS HTTPS records (ALPN, ECH, IP hints) and the Alt-Svc response header.

Probes a URL to discover which HTTP methods it accepts via OPTIONS, HEAD, GET, and a harmless POST, returning allowed methods and status codes for API and security reconnaissance.

Returns human-verified ground-truth details about a local business in Rice Lake / Northumberland County, Ontario, including open status, current menu with prices, payment types, order accuracy, and service quality notes from an in-person visit.

Validates an IBAN with mod-97 checksum, country code, expected length check, bank/branch code parsing, and formatted output — no banking API required.

Converts domain names between Unicode and ASCII (punycode/xn--) forms, lists scripts used per label, and flags mixed-script and confusable-character homograph phishing risks.

Returns comprehensive IP address intelligence including reverse DNS, ASN, announced prefix, country, RDAP org, bogon/private classification, and cloud provider detection in a single call.

Returns the country an IPv4 address is registered to based on regional internet registry (RIR) data via Team Cymru and RDAP, along with ASN context — not a geo-IP database.

Checks an IP address against spam/abuse blocklists (DNSBL), Tor exit node databases, and datacenter/hosting provider registries, returning a risk label with reasons.

Returns the Autonomous System Number (ASN), AS name, BGP prefix, country code, regional registry, and allocation date for a given IP address using Team Cymru data via DNS.

Looks up the registered netblock for an IP address via RDAP, returning ownership details, allocation type, country, address range, and organization from the authoritative regional registry.

Checks if a given URL is currently online, returning HTTP status code, response time, final URL after redirects, server header, and TLS certificate expiry for HTTPS sites.

Returns jsDelivr CDN usage statistics for an npm package over the last month, including total hits, rank, bandwidth, daily hit series for the last 14 days, and top 10 versions by hit share.

Validates arbitrary JSON data against a JSON Schema (Draft 2020-12), returning a valid/invalid flag and detailed error messages with JSON paths for every violation.

Validates a JSON string, reports parse errors with position, and returns pretty-printed and minified versions along with structural metadata like type, key count, depth, and size.

Decodes a JWT token's header and payload claims, checks expiry status, and flags security warnings — without verifying the signature or storing the token.

Fetches and parses llms.txt or llms-full.txt from any domain, returning content, headings, and links to discover AI-agent-friendly documentation.

Checks a domain's full email security posture (MX, SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI) and returns an A-F letter grade, numeric score, and actionable fixes.

Detects the primary inbound mail provider from MX records and all sending services authorized in SPF for any domain, with vendor intelligence and deliverability context.

Extracts the main representative image from any URL by preferring Open Graph/Twitter meta tags, then falling back to the largest declared content image, returning alt text, resolved URL, content type, and byte size.

Probes a Matrix homeserver's federation delegation, client discovery, server software/version, and registration/login flows via well-known endpoints

Runs initialize and tools/list against a Model Context Protocol (MCP) server to discover its protocol version, capabilities, tools, and authentication requirements before wiring it into an agent.

Scans an HTTPS page for mixed content (HTTP-loaded scripts, stylesheets, images, iframes, media, and form actions) distinguishing active from passive types that browsers block or flag.

Checks a domain's MTA-STS policy and TLS-RPT reporting record to determine if inbound email is protected against downgrade attacks.

Looks up MX records for a domain, identifies the mail provider (e.g. Google Workspace, Microsoft 365, Zoho, Proton), detects null-MX, and determines whether the domain accepts email.

Returns SPDX license, permissiveness classification, repository/homepage/maintainer info, and one-hop dependency license compliance data for an npm package.

Returns all published versions of an npm package with publish dates, dist-tags, version count, first/latest publish dates, recent release cadence, and the 30 most recent versions.

Fetches OAuth 2.0 authorization-server metadata (RFC 8414) and OpenID Connect configuration for any server URL, returning endpoints, grant types, PKCE, DPoP, PAR, and scope support

Fetches oEmbed metadata (title, author, thumbnail, dimensions, embed HTML) for a media URL from YouTube, Vimeo, TikTok, SoundCloud, Spotify, Flickr, Bluesky, Reddit, and any oEmbed-compatible site.

Probes a website's common OpenAPI/Swagger spec locations and homepage links, then summarises the discovered spec including title, version, server URLs, paths, operations, and tags.

Fetches and summarizes an OpenAPI/Swagger specification from a URL, returning title, version, path counts, operations, tags, security schemes, and the first 60 operations for instant API comprehension.

Extracts Open Graph and Twitter Card metadata from any URL, returning share preview data including og:title, og:description, og:image, og:type, and Twitter card fields.

Fetches and summarizes an issuer's OpenID Connect discovery document, extracting endpoints, supported scopes, algorithms, and capabilities for auth integration pre-checks.

Returns line-level added and removed text between the current and previous fetch of a webpage, plus similarity ratio and word delta, with a 90-day baseline store.

Returns a full inventory of all images on a web page, including resolved URLs, alt text, dimensions, lazy-loading status, and counts of missing or empty alt attributes for accessibility and SEO auditing.

Fetches link preview card data (title, description, image, favicon, canonical URL) from Open Graph, Twitter Card, schema.org and raw HTML for any URL

Estimates password strength by computing entropy, character class diversity, length, and common-pattern penalties, returning crack-time estimates and a verdict

Parses a podcast RSS feed and returns show metadata plus up to 50 episodes with titles, dates, durations, audio URLs, and descriptions

Extracts all price mentions from a web page, including currency amounts from text and structured metadata tags (schema.org/Open Graph), with currency codes, numeric values, min/max ranges, and product price hints.

Returns public holidays for a given country and year, including date, local and English names, nationwide status, and regional county data.

Converts an IPv4 start-end address range into the minimal list of CIDR blocks that exactly cover it, along with the total address count.

Analyzes a webpage's text for readability metrics including Flesch Reading Ease, Flesch-Kincaid grade level, sentence/word/syllable counts, difficulty label, and estimated reading time.

Returns word count, character count, paragraph count, estimated reading time (at 238 wpm), and speaking time (at 150 wpm) for a given web page URL.

Audits how all four URL variants (http://, https://, www, apex) of a domain resolve, including hop counts, status codes, and whether they converge on a single canonical HTTPS URL.

Traces the full HTTP redirect chain for a URL, returning every hop with status code and latency, the final destination URL, HTTPS status, and total hop count.

Runs a JavaScript regular expression over input text and returns all matches, capture groups, match positions, total count, and any pattern error.

Resolves an IPv4 or IPv6 address to its hostname via a PTR record, returning the ARPA name and TTL.

Checks whether a named bot (e.g. GPTBot, ClaudeBot, Googlebot) is allowed to fetch a specific URL by evaluating the site's robots.txt rules, returning allow/disallow status, matching rule, crawl-delay, and group membership.

Fetches and parses a site's robots.txt file, returning all user-agent groups with their allow/disallow rules, crawl-delay directives, declared sitemaps, and file existence status.

Discovers all RSS and Atom feed URLs for a given website by checking link tags, common feed paths, robots.txt, and sitemaps

Fetches any RSS 2.0, Atom, or RDF feed URL and returns its contents as structured JSON with feed metadata and up to 50 parsed items.

Identifies which SaaS products a company uses by parsing DNS TXT verification tokens from their domain

Returns an A–F security grade, numeric score, and ranked remediation list for a website based on HTTPS, HSTS, CSP, security headers, cookie flags, TLS, and DNS hygiene checks.

Checks a website's HTTP security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy) and returns server/content-type headers, HTTP status, and final URL.

Fetches and parses a domain's security.txt file (RFC 9116), extracting vulnerability disclosure contact, policy, expiry, encryption, and other fields, and flags expired files.

Performs a comprehensive on-page SEO audit of any URL, returning a 0-100 score and a ranked list of issues covering titles, headings, meta tags, structured data, and more.

Performs an on-page SEO audit for a single URL, returning a 0-100 score and a ranked list of issues covering title, meta tags, headings, canonical, Open Graph, image alt text, links, and structured data.

Runs a comprehensive technical SEO audit on a given website URL and returns a 0-100 score with prioritized issues covering titles, meta descriptions, headings, canonical tags, robots, sitemap, HTTPS, Open Graph, structured data, hreflang, image alt coverage, word count, and page weight.

Detects whether a website runs on Shopify, reporting theme name/ID, currency, and public product catalog availability

Follows all redirects of a shortened or tracking URL and returns the final destination, full hop chain with status codes, final domain, and HTTPS status.

Loads a site's sitemap, counts URLs, finds newest/oldest lastmod dates, tracks URLs changed in the last 7/30 days, and detects added/removed URLs since the previous check.

Counts URLs declared across a site's sitemap.xml and any sitemap index (up to 5000 URLs), returning the total page count, number of sitemaps visited, and newest lastmod date.

Fetches and validates a sitemap or sitemap index for well-formedness, URL integrity, format compliance, and Sitemaps protocol limits

Extracts and deduplicates navigation links from a webpage's nav elements, header menus, and ARIA menu/nav roles, grouped as internal or external with primary section inference.

Checks website uptime, HTTP status, response latency, redirect chain, security headers, and TLS certificate details including expiry from certificate-transparency logs for any hostname or URL.

Discovers a company's social media profile URLs (Twitter/X, LinkedIn, Facebook, Instagram, YouTube, GitHub, TikTok, Discord, Telegram) and contact email addresses from its homepage domain.

Checks a domain's SPF record, DMARC policy, and MX records to determine if it is protected against email spoofing and phishing.

Recursively expands a domain's SPF includes and redirects into a flat list of authorized IPv4/IPv6 ranges, returning a single flattened SPF record.

Fetches and fully parses a domain's SPF record, counting DNS lookups, expanding includes, flagging duplicates and common misconfigurations for email deliverability audits.

Checks whether a domain can be spoofed for phishing by evaluating SPF and DMARC configurations and returning a risk level with reasons.

Checks SSL/TLS certificate details and expiry for a hostname, including issuer, SANs, validity dates, days until expiry, and whether the site responds over HTTPS.

Probes common status page locations and hosted providers for a domain to find its public status page, returning the provider, overall health indicator, and active incidents.

Fetches a web page, extracts its main content, and splits it into overlapping ~400-word RAG-ready chunks with metadata (index, word count, nearest heading) for embedding pipelines.

Scans a webpage and returns every external domain it loads resources from, grouped by host with counts and categorized by type (analytics, ads, CDN, fonts, social, chat, payments) for privacy and supply-chain review.

Resolves a place name to its IANA timezone, current local time, UTC offset, DST status, and abbreviation.

Detects and identifies analytics, advertising, and tracking scripts on a web page, returning tool names and IDs (e.g. GTM, GA4, Meta Pixel, Hotjar, HubSpot, Segment, and many more).

Generates up to 40 typosquat variants of a domain (typos, transpositions, omissions, doubled letters, homoglyphs, TLD swaps) and checks which ones currently resolve.

Fetches a file at a given URL and returns its SHA-256, SHA-1, SHA-384, MD5 hex digests, SRI integrity string, byte size, content type, last-modified, ETag, and final redirected URL.

Detects the true MIME type of a file at a URL by reading magic bytes, then flags mismatches against the declared Content-Type header and URL extension

Normalizes and canonicalizes URLs by lowercasing scheme/host, dropping default ports, resolving dot segments, sorting query parameters, and stripping tracking parameters like utm_*, fbclid, gclid, and ref.

Probes a URL to report whether it is reachable, its HTTP status code, response latency in milliseconds, redirect count, final URL, and any connection or TLS errors.

Fetches a web page URL and returns clean, LLM-ready Markdown with article content, headings, links, images, code blocks, plus metadata like title, word count, and outbound links.

Parses a User-Agent string to extract browser name and version, operating system, device class (desktop/mobile/tablet/bot), mobile flag, and bot identity for 20+ known crawlers.

Returns a 7-day daily weather forecast for any place, including high/low temperatures, precipitation, wind, sunrise/sunset, and daily condition, using Open-Meteo data.

Resolves a WebFinger resource (acct:user@domain or URI) via RFC 7033 and returns subject, aliases, and links including ActivityPub actor, profile page, avatar, OIDC issuer, and remote-follow template.

Extracts all outbound links from a web page's main content as absolute URLs, along with the page's heading outline and title.

Extracts the structural outline of a web page — heading hierarchy (H1–H6), title, meta description, word count, link/image counts, and first paragraph — without fetching the full body text.

Fetches a lightweight preview of any web page including title, meta description, canonical URL, language, first 500 characters of body text, and word count.

Extracts the readable main text of a web page as clean plain text, along with title, meta description, and word count — stripping HTML, navigation, ads, and scripts.

Fetches homepage metadata including title, meta description, OpenGraph tags, language, favicon, viewport, HTTP status, and final URL for a given website.

Fetches any web page and returns its content as clean Markdown along with title, description, headings, word count, and all extracted links.

Detects the CMS, frameworks, analytics tools, CDN, hosting, and other technologies used by a website's live homepage.

Checks 37 standard well-known URLs on a domain and reports which ones exist, enabling rapid site reconnaissance.

Returns clean JSON with domain registration details—registrar, creation date, expiry date, last updated, EPP status codes, and nameservers—sourced from authoritative RDAP.

Returns the top 10 Wikipedia articles matching a search query, with title, snippet, word count, and URL.

Fetches the lead paragraph, short description, thumbnail, page URL, and coordinates for a Wikipedia topic, resolving redirects and falling back to search when the exact title is not found.

Returns the top 50 words (stopwords removed) with counts and share, total and unique word counts, and top bigrams for a given web page.

Detects whether a site runs WordPress and fingerprints its version, theme, plugins, REST API exposure, XML-RPC status, and login page presence.

Fetches both the www and apex (root) variants of a domain over HTTP and HTTPS, reporting which is canonical, whether redirects are in place, and any inconsistencies like duplicate content or missing HTTPS upgrades.

Probes a URL for x402 payment requirements and decodes its payment terms before committing to pay

Extracts readable main text, title, meta description, final URL, status, and word count from up to 5 URLs in a single batch call.

Converts a cryptocurrency amount to a fiat currency value using live CoinGecko prices, returning the converted value, exchange rate, and timestamp.

Converts a place or city name to coordinates (latitude, longitude), country, region, timezone, population, and elevation, with up to 5 alternative matches.

Returns a structured CRM-ready company profile from just a domain name, including name, description, industry, size hints, social handles, contact emails, mail provider, location, and a trust score.

Returns current weather conditions (temperature, humidity, wind, precipitation, cloud cover) for any place name or coordinates using Open-Meteo data.

Extracts postal address candidates from a webpage, including structured schema.org PostalAddress data, street address patterns (US/CA/UK/EU), and Google Maps links.

Returns the name, country, regional registry, allocation date, and RDAP record for a given Autonomous System Number (ASN).

Checks whether a domain has a valid BIMI DNS record at default._bimi, returning the SVG logo URL and VMC certificate URL for email branding readiness.

Computes network and broadcast address, first/last usable host, netmask, wildcard mask, and total/usable address counts for any IPv4 CIDR block.

Returns ECB historical exchange rates between two currencies for a specific date or a daily series over a date range, including min, max, and average statistics.

Returns the current local date, time, UTC offset, day of week, Unix timestamp, ISO 8601 string, and week number for any IANA timezone.

Parses ISO dates, numeric dates, month names, and relative phrases into multiple date/time representations including ISO 8601 UTC, Unix timestamp, weekday, ISO week, day of year, and a relative description.

Retrieves Docker Hub metadata for a container image, including description, pull count, star count, last updated timestamp, and the 10 most recent tags with sizes and dates.

Extracts FAQ question/answer pairs from web pages by parsing schema.org FAQPage markup, <details>/<summary> blocks, and question-phrased headings with following paragraphs.

Search Hacker News stories and comments by keyword phrase, returning the top 15 results sorted by relevance with points, comment counts, author, date, and links.

Returns a detailed explanation of one or more HTTP header names, including their purpose, typical values, an example, whether they are request/response headers, and a security relevance flag.

Returns width, height, format, aspect ratio, orientation, and byte size of an image from its URL by reading at most 64 KB

Checks a domain's IPv6 readiness by querying AAAA records, IPv6 support on mail exchangers and nameservers, and dual-stack status.

Sends three sequential timed HTTP GET requests to a URL from Cloudflare's edge and reports min/avg/max latency, jitter, per-attempt status, response size, and server/CDN header.

Monitors MX record lookups for a domain on a schedule, returning the current result, whether it changed, which fields changed with before/after values, and when last seen.

Returns npm download counts for a package — last day, week, and month totals plus a 30-day daily time series — from the public npm downloads API.

Fetches npm package metadata including latest version, publish date, description, license, dependencies, weekly downloads, and maintainers from the public npm registry.

Hashes the readable text of a webpage and compares it with the previously stored version to detect changes, reporting word delta, similarity score, and sample of added/removed lines.

Fetches an HTML page and returns a breakdown of its weight and resource counts (document bytes, script/stylesheet/image/iframe/font counts, inline script bytes, external hosts) plus a heaviness verdict.

Extracts all downloadable file links (PDF, Word, Excel, PowerPoint, CSV, ZIP, etc.) from a webpage, with anchor text and file-type counts.

Returns all released versions of a PyPI package with release dates, yanked flags, counts, and recent release summaries.

Detects whether an email address is a generic role-based mailbox (e.g. info@, support@, sales@) rather than a personal address, and returns the role category and likelihood of being personal.

Fetches and expands a site's sitemap.xml up to two levels deep, returning up to 500 page URLs, total count, sitemaps visited, and lastmod date range.

Converts any text into a URL slug and also returns snake_case, camelCase, PascalCase, kebab-case, and a safe filename variant

Checks up to 20 domains at once to determine whether each can be spoofed in forged emails by evaluating SPF and DMARC configurations together.

Returns all subdomains of a given domain discovered in public TLS certificate transparency logs (crt.sh), deduplicated and sorted, up to 500 results.

Analyzes submitted text and returns Flesch Reading Ease score, Flesch-Kincaid grade level, average sentence length, syllable count, difficulty label, and estimated reading time.

Returns RDAP server URL, DNSSEC signing status, and nameserver count for any top-level domain (TLD) from the IANA bootstrap file.

Checks whether a given IPv4 address is a current Tor exit node, using the Tor Project's published exit list (cached hourly).

Converts values between units across length, mass, volume, speed, area, data size, time, energy, pressure, and temperature categories, returning the converted value, category, and conversion factor.

Parses a URL into its components: scheme, host, port, path segments, query parameters, fragment, origin, registrable domain, and normalized form, plus flags for secure/IP/localhost.

Detects which Web Application Firewall (WAF) is protecting a target site by analyzing response headers, cookies, and block-page behavior via a probe HTTP GET request.

Fetches and parses a site's web app manifest (manifest.json or site.webmanifest) to extract PWA metadata including name, icons, theme colors, display mode, and installability status.

Returns expiry date, days remaining, registrar, and at-risk status for up to 20 domains in a single call, sorted soonest-expiring first, with counts of domains expiring within 30 and 90 days.

Fetches and summarises AI agent discovery metadata from a domain by probing well-known agent descriptor paths

Performs DNS lookups for up to 20 domains in a single call, returning A records, MX records, nameservers, SPF existence, and DMARC existence per domain.

Returns trust/legitimacy scores (0-100) with top reasons, domain age, mail presence, and HTTPS status for up to 10 domains in a single call at $0.01.

Resolves a domain name to its IPv6 (AAAA) addresses, returning TTL values and DNSSEC validation status.

Looks up DNS CAA records for a domain to identify which certificate authorities are authorized to issue TLS certificates, including issue, issuewild, and iodef directives.

Looks up DNS HTTPS/SVCB service binding records for a domain, revealing HTTP/3 (QUIC), HTTP/2 ALPN support, ECH configuration, and IP hints at the DNS level.

Monitors DNS MX records for a domain and alerts when they change, storing a 90-day comparison baseline per domain.

Converts a JSON array of objects into RFC-4180 compliant CSV, flattening nested keys with dots and joining arrays, and returns the CSV text plus row/column statistics.

Audits DNS nameserver health for a domain, checking NS resolution, SOA serial/primary, minimum nameserver count, and single-point-of-failure risk

Returns the direct (one-hop) dependencies of an npm package — dependencies, peerDependencies, and optionalDependencies with version ranges, counts, engines field, and install script presence.

Fetches a web page and searches its readable text (case-insensitively) for a given phrase, returning whether it was found, the match count, and a surrounding context snippet.

Detects the declared HTML language, content-detected language, agreement between them, and hreflang alternate count for any web page URL.

Checks the HTTP status of the first 20 outbound links on a given page, returning anchor text, final status codes, redirect flags, and ok/broken/redirected summary totals.

Determines whether a creative work is in the public domain across multiple jurisdictions (US, Canada, UK, EU, Australia) based on publication year and author death year, with per-jurisdiction verdicts and reasoning.

Runs a JavaScript regular expression against input text and returns all matches, capture groups, named groups, match count, and timing safety guard

Retrieves full metadata for an IETF RFC by number, including title, authors, status, abstract, relations, and links to the specification text.

Monitors HTTP security headers for a given URL and reports whether they have changed since the last check, including which fields changed and their before/after values.

Looks up a Wikidata entity by Q-id or name and returns its label, description, aliases, and key structured claims resolved to human-readable labels.

Checks a domain's Strict-Transport-Security header configuration and its status on the Chrome HSTS preload list via hstspreload.org

Runs an SEO audit on a URL, compares it to the previous result (stored 90 days), and returns whether anything changed along with a before/after diff of changed fields.

Extracts postal address candidates from up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error reporting.

Monitors a web page for changes in postal address candidates, returning changed/unchanged status with before/after field diffs since last check

Monitors ads.txt file changes for a domain by comparing the current check against the previous result, returning what changed, which fields changed, and when it was last seen.

Extracts analytics and tracking pixel IDs (Google Analytics, Facebook Pixel, etc.) from up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error fields.

Detects article authors and bylines for up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error fields.

Auto-detects whether input is base64 and encodes or decodes it accordingly, also returning URL-safe base64 and hex representations

Monitors a domain's BIMI DNS record for changes, returning current state, changed flag, field-level diffs, and last-seen timestamp on each poll.

Look up book metadata by ISBN via Open Library, returning title, authors, publish date, publisher, page count, subjects, cover image, and Open Library link.

Searches Open Library for books, returning up to 10 results with title, authors, first publish year, edition count, ISBNs, and cover image per query.

Checks up to 20 URLs concurrently for broken links in a single call, returning per-item results in input order with error fields and a failure count.

Monitors a URL's broken link check results over time, returning the current status, whether anything changed since the last call, and exactly which fields changed with before/after values.

Monitors a URL's canonical tag and alerts when it changes, storing previous results for 90 days for diff comparison.

Validates a payment card number via Luhn checksum, identifies the card brand (Visa, Mastercard, Amex, etc.), checks length validity, and returns a masked form of the number.

Estimates whether a domain accepts mail to any address (catch-all behavior) using provider heuristics, wildcard DNS, and MX shape — no SMTP probing required.

Checks up to 20 domains in one concurrent call to determine if each has a catch-all (accept-all) mailbox configuration, returning results in input order with per-item errors.

Detects which CDN provider (if any) is serving each of up to 20 domains in a single concurrent batch call, returning results in input order with per-item error fields.

Monitors a domain's CDN detection result over time, returning the current detection, whether it changed since the last check, and exactly which fields changed with before/after values.

Batch-checks up to 20 IP addresses at once to determine if each is a CDN or reverse proxy (Cloudflare, Akamai, Fastly, CloudFront, etc.), returning results in input order with per-item errors and a failure count.

Monitors whether an IP address belongs to a CDN or reverse proxy and alerts when that classification changes between calls.

Looks up a JavaScript library on cdnjs, returning its latest version, CDN URL, SRI hash, license, homepage, GitHub repo, and the 15 most recent versions for instant script tag generation.

Monitors certificate transparency log history for a domain and detects changes between polling intervals, returning a diff of what changed.

Fetches Subject Alternative Names (SANs) from the newest TLS certificate for up to 20 domains concurrently in a single call, using certificate transparency logs.

Detects whether a list of up to 20 IPs or hostnames belong to cloud or hosting providers, returning cloud provider details for each in a single batch call.

Monitors an IP or hostname's cloud/hosting provider detection and alerts when it changes between calls, returning current result, changed flag, and field-level before/after diffs.

Monitors a domain's CMS and platform detection results over time, returning current values, a changed flag, and field-level before/after diffs since the last check.

Fetches structured company profile data for up to 20 domains in a single concurrent API call, returning results in input order with per-item error handling.

Monitors a domain's company profile and returns what changed (field-by-field before/after) compared to the previous check, stored for 90 days.

Monitors HTTP compression status for a URL and returns whether it has changed since the last check, with before/after field diffs retained for 90 days.

Finds public contact email addresses for up to 20 company domains in a single concurrent batch call, returning results in input order with per-item error fields.

Audits Set-Cookie headers for up to 20 URLs in a single concurrent batch call, returning per-item cookie analysis in input order with per-item error tracking.

Runs a cookie audit on a URL's Set-Cookie headers and returns whether anything changed since the last call, with before/after field diffs and timestamp.

Returns the international dialing prefix (calling code) for a country by name or ISO code, along with ISO codes and an example E.164 formatted number.

Returns the current USD price, 24-hour change, high, low, and volume for major cryptocurrencies like Bitcoin, Ethereum, Solana, and USDC by name or symbol.

Parses a CSV string (including quoted fields and embedded newlines) and returns an array of JSON objects using the first row as headers, along with column names and row count.

Converts an amount between two currencies using the latest European Central Bank (ECB) exchange rate, returning the converted amount, the rate used, and its date.

Returns the latest daily exchange rates for a base currency against 30 major currencies, sourced from the European Central Bank via frankfurter.app.

Extracts publication and modification dates from up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error fields.

Removes duplicate lines from a text list, returning unique lines in original order with a case-insensitive duplicate count and the duplicate entries found.

Checks up to 20 email addresses in a single call to detect whether each is a disposable or temporary email address, returning results in input order with per-item error fields.

Monitors a disposable/temporary email address detection result over time, alerting when the classification changes between calls.

Checks DKIM selector DNS records for up to 20 domains concurrently in a single call, returning per-item results in input order with a failure count.

Runs a DKIM selector check for a domain, compares it against the previous result (stored up to 90 days), and returns whether the check result has changed along with field-level before/after diffs.

Scans up to 20 domains concurrently for DKIM selectors in a single API call, returning per-domain results in input order with per-item error fields and a failure count.

Monitors DKIM selector scan results for a domain and reports whether the results have changed since the last check, including before/after field diffs.

Monitors a domain's DMARC DNS record on a schedule, returning the current result, whether it changed, which fields changed with before/after values, and when it was last checked.

Batch-fetches all common DNS records for up to 20 domains in a single concurrent call, returning results in input order with per-item error fields.

Monitors all common DNS records for a domain and returns the current values, a changed flag, and a field-level diff compared to the previous check (retained 90 days).

Performs concurrent DNS A record lookups for up to 20 domains in a single call, returning results in input order with per-item error fields and a failure count.

Monitors DNS A record lookups for a domain on a schedule, detecting and reporting exactly what changed between the current and previous check.

Monitors an IP address against DNS blacklists, returning the current result plus a diff (changed/unchanged, before/after field values) compared to the previous check stored for 90 days.

Monitors a DNS zone for changes by comparing the current DNS check result against the previous stored result, returning what changed and when.

Performs concurrent DNS CNAME record lookups for up to 20 hostnames in a single call, returning results in input order with per-item error fields and a failure count.

Monitors a hostname's DNS CNAME record and reports whether it has changed since the last check, including field-level before/after diffs.

Monitors DNS HTTPS/SVCB records for a domain and reports whether they have changed since the last check, with before/after field diffs.

Runs a DNS lookup for a domain, compares it to the previous result (stored up to 90 days), and returns whether anything changed along with before/after field diffs.

Looks up DNS NS (nameserver) records for up to 20 domains in a single concurrent batch call, returning results in input order with per-item errors and a failure count.

Monitors DNS NS (nameserver) records for a domain and detects changes by comparing current results against a stored snapshot from the previous call, returning a diff with before/after field values.

Runs a DNS propagation check for a domain, compares it against the previous result (stored 90 days), and returns whether anything changed along with before/after field diffs.

Detects the DNS hosting provider for up to 20 domains in a single concurrent batch call, returning results in input order with per-item error fields.

Monitors DNS hosting provider detection for a domain and reports changes with before/after field diffs compared to the previous call.

Runs a DNSSEC check on a domain, compares results with the previous call (stored 90 days), and returns whether anything changed along with field-level before/after diffs.

Looks up DNS SOA records for up to 20 domains concurrently in a single call, returning results in input order with per-item error fields and a failure count.

Monitors a domain's DNS SOA record and returns whether it has changed since the last check, with detailed before/after field diffs

Monitors DNS SRV record lookups for a domain and alerts when results change compared to the previous check, returning a diff of changed fields with before/after values.

Looks up DNS TXT records for up to 20 domains concurrently in a single call, returning results in input order with per-item error fields and a failure count.

Monitors DNS TXT records for a domain and returns whether they changed compared to the previous check, with before/after field diffs.

Runs a DNS wildcard check for a domain and returns whether the result has changed since your last call, with before/after field diffs and timestamps.

Checks expiration dates, registration info, registrar, and RDAP status codes for up to 20 domains in a single concurrent batch call

Returns domain registration expiry information for up to 20 domains in a single concurrent batch call, with per-item errors and a failure count.

Monitors a domain's fraud and phishing risk report for changes, returning current results, a changed flag, and field-level before/after diffs compared to the previous check (retained 90 days).

Checks email authentication and deliverability configuration (SPF, DKIM, DMARC, MX, etc.) for up to 20 domains in a single concurrent call, returning per-domain results in input order with per-item error fields.

Extracts, deduplicates, lowercases, and syntax-validates every email address from a block of text, returning a clean contact list with per-domain counts.

Validates email address syntax against RFC 5322 rules — checking local part, domain shape, dots, invalid characters, missing TLD, and length limits — without performing any DNS lookup.

Extracts named-entity candidates (people, organisations, places, years, money) from a web page using frequency-ranked heuristics, without an LLM.

Extracts named-entity candidates from up to 20 URLs concurrently using heuristics (no LLM), returning results in input order with per-item error fields

Fetches favicons and app icons for up to 20 domains in a single concurrent batch call, returning results in input order with per-item error reporting.

Monitors a webpage for changes in form detection results, returning a diff of what changed since the last check.

Returns paginated listings of free public-domain Action & Adventure audiobooks from LibriVox with runtime, language, mp3/zip/RSS/archive.org links, filterable by title or author keywords.

Returns a paginated catalog of free public-domain action & adventure fiction audiobooks from LibriVox, with runtime, language, and direct download/stream links (MP3 zip, RSS, archive.org).

Browse and search LibriVox's public-domain 'Essays & Short Works' audiobook catalogue (659+ titles) with runtime, language, and download links, paginated at 20 results per call.

Returns a paginated list of free public-domain science fiction audiobooks from LibriVox with runtime, language, download links, and Internet Archive metadata.

Searches for free public-domain audiobooks from LibriVox and Internet Archive, returning runtime, language, genres, and direct download/stream links.

Returns a paginated catalogue of free public-domain books tagged 'Finnish fiction' from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with direct download links.

Browse and download free public-domain books tagged with the 'Folklore' Library of Congress subject, ranked by relevance and popularity, with epub/txt/html download links.

Returns a paginated catalogue of free public-domain French fiction books from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with download links.

Returns a paginated list of free public-domain and open-licensed Arabic-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in epub, txt, html, and scan formats.

Returns a paginated list of public-domain and free-licensed Czech-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in multiple formats.

Returns a paginated list of free public-domain and open-licensed Danish-language books with download links (epub, txt, html, scans), sorted by popularity, with optional keyword search.

Returns a paginated list of free Dutch-language public-domain books from Project Gutenberg and Internet Archive, with download links, searchable by title, author, and subject.

Returns paginated public-domain and free-licensed Esperanto-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in multiple formats.

Returns a paginated list of free public-domain and open-licensed Finnish-language books with download links (epub, txt, html, scans), sorted by popularity, with optional keyword search.

Returns a paginated list of free, public-domain French-language books from Project Gutenberg and Internet Archive with download links in epub, txt, html, and scan formats, sorted by popularity, with optional keyword search.

Returns a paginated catalogue of free German-language public-domain and open-licensed books from Project Gutenberg and Internet Archive, sorted by popularity, with epub/txt/html/scan download links.

Returns a paginated catalogue of public-domain and free-licensed Greek-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in multiple formats.

Returns a paginated list of free public-domain and openly-licensed Hebrew-language books from Project Gutenberg and Internet Archive, with download links in epub, txt, html, and scan formats, sorted by popularity.

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'Inheritance and Succession', ranked by relevance and popularity, with direct download links in epub/txt/html formats.

Returns a paginated list of free public-domain and openly-licensed Hungarian-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in multiple formats.

Returns a paginated catalogue of free Italian-language public-domain books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in multiple formats.

Returns a paginated list of free public-domain and openly-licensed Japanese-language books from Project Gutenberg and Internet Archive, with download links, sorted by popularity, with optional keyword search.

Returns a paginated catalogue of free Norwegian-language public-domain and open-licensed books from Project Gutenberg and Internet Archive, with download links, sorted by popularity.

Returns a paginated list of free public-domain and open-licensed Polish-language books from Project Gutenberg and Internet Archive, with download links, sorted by popularity, with optional keyword search.

Returns a paginated list of free Portuguese-language public-domain and open-licensed books from Project Gutenberg and Internet Archive, with download links, sorted by popularity.

Returns a paginated list of free public-domain and freely-licensed Russian-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in multiple formats.

Returns a paginated list of free public-domain and open-licensed Spanish-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links in epub, txt, html, and scan formats.

Returns a paginated list of free public-domain and free-licensed Swedish-language books from Project Gutenberg and Internet Archive, with download links, sorted by popularity, with optional keyword search.

Returns a paginated list of free public-domain and free-licensed Turkish-language books from Project Gutenberg and Internet Archive, with download links in epub, txt, html, and scan formats, sorted by popularity, with optional keyword search.

Search public-domain books across Project Gutenberg and Internet Archive, returning direct download links in epub, Kindle, HTML, and plain-text formats along with author dates, language, and subject metadata.

Returns a paginated, most-downloaded-first catalogue of free and public-domain films from the 1890s sourced from Internet Archive, with year, creator, rights status, and download directory per entry.

Returns a paginated list of free, public-domain or free-licensed films from the 1930s sourced from Internet Archive, sorted by most downloaded, with metadata including year, creator, rights status, and download directory.

Returns a paginated list of free (public-domain or free-licensed) films from the 1970s sourced from Internet Archive, sorted by most downloaded, with metadata including year, creator, rights status, and download directory.

Search a catalogue of public-domain and free-licensed films (features, shorts, archival footage) from Internet Archive with metadata including year, creator, rights status, and download links.

Retrieve a single catalogued free/public-domain work by its Gutenberg number, LibriVox ID, or Internet Archive identifier, including all download links, rights status, last-verified date, and source page.

Returns the 25 most recently added records (books, audiobooks, films, texts, or any type) from the free, legally downloadable works catalogue, with timestamps and download links.

Browse public-domain books, audiobooks, and films organized by Library of Congress subject headings or LibriVox genres, returning matching works with download links.

Audits a webpage's H1-H6 heading structure, reporting all headings with text, H1 count, skipped levels, empty headings, and a hierarchical outline tree for SEO and accessibility fixes.

Monitors a hostname's resolved IP addresses and hosting attribution for changes, returning a diff of what changed since the last check.

Runs an HSTS preload eligibility check for a domain, compares the result to the previous call, and returns exactly what changed (with before/after values) and when it was last seen.

Fetches raw HTML for up to 20 URLs concurrently in a single call, returning results in input order with per-item error fields and a failure count.

Monitors a URL for changes in raw HTML content by comparing the current fetch result against the previous cached result, returning a changed flag and diff of modified fields.

Extracts bullet and numbered lists from a web page as structured arrays, including item text, list type, and preceding headings.

Extracts bullet and numbered lists from up to 20 URLs in a single concurrent batch call, returning ordered results with per-item error fields and a failure count.

Concurrently fetches up to 20 URLs and extracts all HTML tables as structured JSON, returning results in input order with per-item error fields.

Strips HTML tags, scripts, and styles from HTML content, decodes entities, preserves paragraph structure, and returns clean plain text with word count.

Runs an HTTP methods check on a URL, compares the result to the previous call (stored up to 90 days), and returns what changed, when, and the current answer.

Returns the standard reason phrase, meaning, and recommended client behavior for any HTTP status code or code class (e.g. 4xx)

Look up HTTP status codes by class (4xx), specific code (404), or keyword (teapot, redirect, auth) to get reason phrases and usage explanations

Converts up to 20 domain names between internationalized (IDN) and punycode forms in a single batch call, with per-item error reporting and homograph detection.

Analyzes a webpage's link profile, returning counts and lists of internal (same-site) and external (outbound) links, anchor text, nofollow/sponsored/ugc attribution, and top external domains.

Monitors the internal vs external link split of a webpage and alerts when the ratio changes compared to the previous check.

Enriches up to 20 IP addresses in a single concurrent batch call, returning intelligence data per IP in input order with per-item error reporting.

Monitors IP address intelligence data on a schedule and reports exactly which fields changed since the last check, with before/after values.

Resolves up to 20 IP addresses to their country/geo data in a single concurrent batch call, returning results in input order with per-item error fields.

Monitors which country an IP address resolves to and alerts when that mapping changes, comparing against the last stored result from up to 90 days ago.

Checks whether a given IPv4 address falls within a specified CIDR block, returning a boolean membership result.

Classifies an IPv4 address as public or private/bogon, identifying RFC1918, loopback, link-local, CGNAT, multicast, documentation, and reserved ranges

Checks the reputation of up to 20 IP addresses in a single concurrent batch call, returning per-item results in input order with error counts.

Monitors an IP address's reputation score over time and returns a diff whenever it changes, comparing current results against the previous call stored for up to 90 days.

Monitors an IP address's ASN mapping and reports whether it has changed since the last check, including which fields changed and their before/after values.

Expands an IPv6 address to its full 8-group form and compresses it back to RFC 5952 canonical form, with address type classification.

Validates whether a string is a valid IPv4 or IPv6 address, returning the IP version, normalized form, and classification (public, private, loopback, link-local, multicast, etc.)

Performs concurrent RDAP-based IP WHOIS lookups for up to 20 IP addresses in a single call, returning results in input order with per-item error fields.

Runs an IP WHOIS RDAP lookup and compares it against the previous result (cached 90 days) to detect and report any changes in registration data.

Checks whether a given date is a public holiday in a specified country, returning yes/no, the holiday name, weekend status, and the next upcoming public holiday.

Evaluates a JSONPath expression against a JSON document and returns all matching values with a count

Extracts the top 20 terms and top bigrams by frequency from a webpage, plus title and description, to summarize what the page is about.

Monitors a website's lead card for changes and returns a diff with before/after field values compared to the previous check.

Monitors a site's llms.txt file for changes, returning the current content, a changed flag, field-level diffs with before/after values, and the last-seen timestamp.

Checks email security and deliverability health for up to 20 domains in a single concurrent batch call, returning an A-F grade and detailed report per domain.

Detects the mail provider (e.g. Google Workspace, Microsoft 365, Zoho) for up to 20 domains in a single concurrent batch call, returning results in input order with per-item error fields.

Monitors a domain's mail provider detection and alerts when the result changes compared to the previous check (retained 90 days).

Converts Markdown text to safe, escaped HTML including headings, paragraphs, bold/italic, code blocks, links, images, lists, blockquotes, and horizontal rules.

Extracts all meta tags and head-level link elements from a web page's <head>, including name/property/http-equiv, title, charset, viewport, robots, canonical, language, and link rel tags.

Fetches every meta tag from up to 20 URLs concurrently in a single call, returning results in input order with per-item error reporting

Monitors all meta tags on a webpage and returns changes detected since the last check, including which fields changed with before/after values.

Bidirectional MIME type lookup: convert a file extension or filename to its content type, or a content type to its associated extensions, across 80 common formats.

Minifies JSON, HTML, CSS, or simple JS content by stripping comments, whitespace, and redundancy, returning the minified text with byte savings statistics.

Monitors a URL for changes in its mixed content (HTTP resources on HTTPS pages) status, returning diffs between the current and previous check results.

Checks MTA-STS and TLS-RPT email security configuration for up to 20 domains in a single concurrent batch call, returning per-domain results in input order with error fields and a failure count.

Monitors a domain's MTA-STS and TLS-RPT configuration by running a check, comparing it to the previous result (retained 90 days), and returning what changed with before/after field values.

Checks nameserver health for up to 20 domains in a single concurrent call, returning per-item results in input order with error fields and a failure count.

Returns maintenance-risk signals for an npm package: deprecation status, days since last publish, dependency deprecation, single-maintainer flag, and a risk label (healthy/stale/deprecated).

Converts numeric values to their English word equivalents, supporting integers up to quadrillions, decimals, negatives, currency form, and ordinal form.

Extracts Open Graph and Twitter Card metadata from up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error handling.

Monitors a URL's OpenGraph and Twitter Card metadata for changes, returning current values, a changed flag, field-level diffs with before/after, and last-seen timestamp.

Runs a page change detection check and compares it against the previous result for the same URL (stored 90 days), returning whether the page changed, which fields changed with before/after values, and when it was last seen.

Monitors a webpage's text content and returns whether it changed since your last call, with before/after field diffs, using persistent 90-day result history.

Monitors the image inventory of a webpage and reports whether it has changed since the last check, including which fields changed with before/after values.

Fetches a web page and reports whether each specified keyword is present, how many times, and a context snippet, with change detection since the last check.

Monitors and detects changes in the HTTP status of the first 20 links on a given web page, comparing current results against the previous check stored for up to 90 days.

Monitors a URL's link preview card (Open Graph/meta) data for changes, returning current values, a changed flag, diff of fields, and last-seen timestamp

Analyzes page weight and resource inventory for up to 20 URLs in a single concurrent batch call, returning per-item results in input order with error handling.

Monitors a webpage's weight and resource inventory over time, returning the current result, a changed flag, and field-level before/after diffs compared to the previous check

Extracts metadata from a PDF document at a given URL, including page count, PDF version, title, author, creation dates, encryption status, and file size.

Extracts and normalizes phone numbers from a web page, distinguishing high-confidence tel: link numbers from candidate numbers found in page text.

Extracts phone numbers from up to 20 URLs concurrently in a single call, returning results in input order with per-item error reporting

Parses and normalizes a phone number into E.164 format, extracts country code and national number, checks plausibility, and returns a display-formatted version.

Validates whether a postal/ZIP code matches the expected format for a given country, and returns the expected pattern and example for 30 countries.

Formats JSON, HTML/XML, and SQL into human-readable indented output with detected type and line count.

Fetches metadata for a PyPI package including latest version, upload date, summary, license, homepage, Python requirement, dependencies count, release history, and wheel availability.

Returns parsed dependency metadata for the latest release of a PyPI package, including requires_dist, requires_python, license, extras, and environment markers.

Extracts quotations (blockquotes, <q> elements, and quoted passages of 8+ words) from a web page along with an attribution guess from surrounding text

Monitors a webpage's extracted quotations for changes, returning current quotes, a changed flag, field-level diffs with before/after values, and last-seen timestamp.

Returns a randomly selected free work (book, audio, video, etc.) from the catalogue with download links, for discovery and recommendations.

Estimates reading time and word count for up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error reporting.

Traces the full HTTP redirect chain for up to 20 URLs concurrently in a single call, returning ordered results with per-item hop details and error fields.

Monitors the full HTTP redirect chain for a URL on a schedule, alerting when the chain changes by comparing the current trace against the previously stored result.

Monitors reverse DNS (PTR) records for a given IP address and alerts when they change, comparing current results against a stored baseline from up to 90 days ago.

Monitors a URL's robots.txt file for changes by comparing the current parse result against the previously stored result, returning a diff with before/after field values.

Monitors an email address for changes in role-address detection results, returning current status, change flag, field-level diffs, and last-seen timestamp.

Converts integers (1–3999) to Roman numerals or Roman numerals back to integers, with input validation both ways.

Discovers RSS and Atom feeds for up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error reporting.

Monitors a URL for changes in RSS/Atom feed discovery results, returning current feeds, a changed flag, and before/after diffs since the last call.

Bulk-lookup which SaaS vendors up to 20 domains use, identified from DNS TXT verification tokens, returned in input order with per-item errors

Change watch for a domain's security.txt file, detecting and reporting field-level differences since the last check

Runs concurrent SEO audits on up to 20 URLs in a single call, returning a 0-100 score and ranked issues list per URL in input order

Checks whether a given domain is a Shopify store and returns a diff against the last result, indicating whether the detection status changed and what fields changed.

Monitors a website's sitemap URL list for changes, returning current URLs, a changed flag, before/after field diffs, and last-seen timestamp for change detection on a schedule.

Finds social media profile links for up to 20 company domains in a single concurrent batch call, returning results in input order with per-item errors.

Checks SPF and DMARC email security records for up to 20 domains in a single concurrent API call, returning per-domain results in input order with error details and a failure count.

Runs an SPF/DMARC email security check for a domain, compares results against the previous call (retained 90 days), and returns what changed, which fields changed, and when the configuration was last seen.

Batch SPF flattening for up to 20 domains in one call, returning flattened SPF records per domain with per-item error reporting.

Monitors SPF flattener results for a domain and reports whether anything changed since the last check, with before/after field diffs retained for 90 days.

Checks SPF DNS records for up to 20 domains concurrently in a single call, returning per-domain results with error fields and a failure count.

Monitors an email domain's SPF record for changes by running a check and comparing it against the previous result, returning current value, changed flag, field-level diffs, and last-seen timestamp.

Monitors a domain's email spoofability (SPF + DMARC) over time and returns whether the result has changed since the last call, with before/after field diffs.

Formats SQL statements with standardized casing and indentation, and extracts metadata such as statement type, referenced tables, and write operation detection.

Checks SSL/TLS certificate expiry dates for up to 20 hostnames in a single concurrent batch call, returning per-item results in input order with error fields and a failure count.

Monitors SSL/TLS certificate expiry for a hostname on a schedule, returning whether the expiry status has changed since the last check along with field-level before/after diffs.

Concurrently checks up to 20 domains for the presence of a status page, returning ordered results with per-item error fields and a failure count.

Parses all JSON-LD blocks on a given webpage and returns structured schema.org types, key fields, and Open Graph/microdata hints without full page scraping.

Extracts JSON-LD structured data from up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error reporting.

Discovers subdomains for up to 20 domains in a single call by querying certificate-transparency logs, returning results in input order with per-item error reporting.

Divides an IPv4 CIDR block into equal subnets of a smaller prefix length, listing up to 256 resulting networks with counts

Returns sunrise, sunset, solar noon, day length, civil twilight, and golden hour times for any location given its coordinates.

Attempts a real TCP connection to a specified host and port, reporting whether the port is open or closed along with connection latency.

Computes a line-level diff between two texts, returning added/removed/kept lines in unified-style format along with a similarity ratio and line counts.

Returns SHA-256, SHA-1, SHA-512, and SHA-384 hex digests plus byte length of any UTF-8 text string

Extracts the top keywords and bigrams from a block of text by frequency with stopwords removed, for tagging, routing, or indexing content.

Detects the language of a given text string, returning the identified language and a confidence score, covering 12 European languages plus Japanese, Chinese, Korean, Arabic, and Russian.

Monitors third-party script inventory on a webpage and returns a diff (changed true/false, before/after field values) compared to the previous check stored for that URL.

Records a page's title and meta description on each call and reports changes compared to the previous call, with 90-day history retention.

Monitors a webpage's title and description for changes by comparing the current result against a stored snapshot from the previous call, returning what changed and when.

Converts TOML configuration files (Cargo.toml, pyproject.toml, wrangler.toml, etc.) into JSON, handling tables, nested dotted keys, arrays of tables, inline tables, arrays, strings, integers, floats, booleans, and dates.

Monitors whether a given IP address is a Tor exit node and alerts you when that status changes between calls, returning a diff of changed fields.

Detects trackers and analytics scripts on up to 20 URLs in a single concurrent batch call, returning per-item results in input order with error fields and a failure count.

Runs tracker and analytics detection on a URL and compares the result with the previous check, returning what changed, which fields changed, and when it was last seen.

Converts Unix timestamps (seconds or milliseconds) to human-readable formats (ISO 8601, RFC 2822, weekday, relative time), or converts date/ISO strings back to Unix seconds and milliseconds, with auto-detection of input type.

Generates random v4 UUIDs or time-ordered v7 UUIDs (sortable, ULID-style) in batches of up to 100 per call.

Validates an email address for deliverability by checking syntax, domain MX records, disposability, role-based patterns, free webmail status, and SPF/DMARC presence, returning a deliverable/risky/undeliverable verdict with reason.

Validates EU, UK, and CH VAT number format by checking the country prefix and national number pattern, without performing a live VIES lookup.

Monitors a domain's web application firewall (WAF) detection status over time, alerting when the WAF configuration changes between polling calls.

Fetches and parses web app manifest files for up to 20 domains concurrently in a single call, returning results in input order with per-item error reporting.

Concurrently extracts all outbound links, headings outline, and title from up to 20 URLs in a single call, returning results in input order with per-item error reporting.

Monitors a webpage's structural outline for changes by comparing the current result against the previously stored snapshot (retained 90 days), returning change status and field-level diffs.

Runs a change-detection check on a webpage snippet URL and returns whether it changed since the last call, with before/after diffs and timestamps

Extracts readable plain text from up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error reporting.

Extracts homepage metadata (title, description, favicon, etc.) for up to 20 domains in a single concurrent batch call, returning results in input order with per-item error fields.

Monitors a website's homepage metadata and reports whether it has changed since the last check, including which fields changed and their before/after values.

Scrapes up to 20 URLs concurrently in a single call, returning full-page content for each URL in input order with per-item error reporting

Monitors a scraped web page for changes by comparing the current scrape result against a stored previous result, returning what changed and when.

Runs a website security posture check for a domain, compares it to the previous result (stored 90 days), and returns whether the A-F grade or specific fields have changed, along with before/after values.

Detects the technology stack for up to 20 domains in a single concurrent batch call, returning per-item results in input order with error fields and a failure count.

Monitors a website's technology stack and returns a diff of what changed since the last check, with before/after field values and change timestamp.

Runs a WHOIS/RDAP domain registration lookup and compares it against the previous result (stored 90 days) to detect and report exactly which fields changed, with before/after values.

Returns word, character, sentence, paragraph, and unique-word counts for input text, plus average word length and the longest word.

Detects WordPress presence and fingerprint for up to 20 domains in a single concurrent batch call, returning per-item results in input order with error counts.

Returns all free public-domain books, audiobooks, and films for a given author name, sourced from Gutenberg, LibriVox, and Internet Archive, grouped by media type with download links.

Full-text/semantic search of the x402 Bazaar paid-API discovery index, returning up to 20 matching resources with pricing, network, and payment metadata.

Converts XML documents into a structured JSON element tree preserving order, attributes, CDATA, and repeated elements, with element count

Converts block-style YAML text to JSON, returning the parsed JSON object and top-level keys, with support for nested maps, lists, scalars, quoted strings, comments, and literal/folded block scalars.

Fetches YouTube video metadata — title, channel name, channel URL, thumbnail, and video ID — via YouTube's public oEmbed endpoint, no API key required.

Monitors a webpage's RAG text chunks for changes, returning current chunks, a changed flag, field-level diffs with before/after values, and last-seen timestamp.

Browse and download free public-domain books tagged with the 'Western stories' Library of Congress subject, with epub/txt/html links, ranked by relevance and popularity.

Checks a URL's current status and maintains a rolling log of the last 50 checks (status, latency, up/down) to return uptime percentage and average latency

Monitors a website's analytics and pixel IDs for changes by comparing the current extraction result against a stored previous result, returning a diff with before/after values.

Monitors a URL's HTTP caching headers over time and returns a diff when they change, compared against the previous check result stored for 90 days.

Monitors a domain's catch-all mailbox hint and returns whether it has changed since the last check, along with before/after field diffs

Monitors a webpage's code blocks for changes, returning current extracted code, a changed flag, field-level before/after diffs, and last-seen timestamp.

Monitors a company's homepage for changes in publicly listed contact email addresses, returning current results, a changed flag, field-level diffs, and last-seen timestamp.

Monitors a webpage's content statistics and alerts when they change compared to the previous check, returning changed fields with before/after values.

Monitors a webpage for changes in extracted date information, returning current values, a changed flag, field-level diffs with before/after values, and last-seen timestamp.

Monitors DNS AAAA (IPv6) records for a domain and alerts when they change, with before/after field-level diff and history kept 90 days.

Monitors DNS CAA records for a domain and returns whether they changed since the last check, with before/after field diffs and timestamps.

Checks DNSSEC configuration for up to 20 domains concurrently in a single call, returning per-domain results in input order with error fields and a failure count.

Monitors a domain's expiration date and notifies when it changes compared to the last recorded check, returning before/after field diffs.

Monitors domain registration expiry days and alerts you when the value changes compared to the previous check, returning before/after field diffs and change timestamps.

Monitors a domain's trust/legitimacy score (0–100) over time and reports exactly what changed since the last check, including before/after field values.

Runs an email deliverability and authentication check for a domain, compares it to the previous result (stored 90 days), and returns what changed, when, and the current values.

Identifies the email hosting provider (e.g. Google Workspace, Microsoft 365, custom) for up to 20 email addresses or domains in a single concurrent batch call, returning results in input order with per-item error fields.

Monitors a webpage's FAQ content for changes by comparing the current FAQ extraction against the previous result stored up to 90 days, returning what changed and when.

Browse and download free public-domain Bildungsroman books from Project Gutenberg and Internet Archive, paginated and ranked by relevance/popularity, with epub/txt/html download links.

Returns a paginated catalogue of free public-domain children's story books (Project Gutenberg + Internet Archive), ranked by relevance and popularity, with epub/txt/html download links, optionally filtered by title or author keywords.

Monitors a Gravatar profile check on a given email address, returning the current result alongside a change flag, field-level before/after diffs, and a last-seen timestamp compared against a 90-day history.

Monitors a domain for HTTP/3 and modern-transport support changes, returning current status, a changed flag, and before/after field diffs compared to your last call.

Resolves up to 20 IP addresses to their Autonomous System Numbers (ASN) in a single concurrent batch call, returning results in input order with per-item error fields.

Checks whether up to 20 URLs are online simultaneously, returning up/down status, HTTP status code, and response time for each URL in a single call.

Change-watch for website uptime checks: runs an HTTP reachability check on a URL and compares the result to the previous call, returning what changed and when.

Monitors a webpage's keyword and topic extraction results over time, alerting when they change between scheduled checks.

Monitors a domain's mail health report (A-F grade) on a schedule, detecting and returning exactly which fields changed since the previous check.

Monitors a webpage's main image for changes by comparing the current result against a stored previous result, returning a diff with changed fields and timestamps.

List all MIME types in a category or look up a file extension/MIME type to get its counterpart, with 100+ mappings for Content-Type and upload validation.

Looks up MX (mail exchange) DNS records for up to 20 domains in a single concurrent batch call, returning results in input order with per-item error fields.

Checks up to 20 URLs concurrently for page changes in a single call, returning per-item change detection results in input order with error tracking.

Extracts all PDF document links from up to 20 URLs concurrently in a single call, returning results in input order with per-item error reporting.

Monitors price data extracted from a webpage and reports whether it has changed since the last check, including before/after field diffs.

Monitors redirect audit results for a domain on a schedule, detecting and reporting when redirect behavior changes between calls.

Monitors a website's security grade (A–F) and alerts when it changes compared to the previous check, returning the current grade, a changed flag, and field-level before/after diffs.

Checks HTTP security headers for up to 20 URLs in a single concurrent batch call, returning per-URL results in input order with error tracking.

Compare two semantic versions, check if a version satisfies a range, or sort a list of versions with prerelease handling

Splits the readable text of a webpage into an array of clean sentences with sentence count and average length statistics, optimized for NLP pipelines.

Monitors a URL for changes in its page text when split into sentences, returning a diff of which sentences changed since the last check.

Runs an on-page SEO quick audit for a URL, compares the 0-100 score and fields against the previous result (retained 90 days), and returns whether anything changed with before/after diffs.

Detects whether up to 20 domains are Shopify stores in a single concurrent batch call, returning per-item results in input order with error reporting.

Runs a status page detection check for a domain and returns whether the result has changed since the previous call, with detailed field-level diffs.

Monitors a URL's JSON-LD structured data and reports whether it changed since the last check, including which fields changed and their before/after values.

Fetches up to 20 URLs concurrently and returns RAG-ready text chunks for each, with per-item errors and a failure count, in input order.

Monitors a domain's typosquat list for changes, returning current results, a changed flag, and field-level before/after diffs since the last call

Monitors an email address validation result over time and reports when it changes, returning current validity status, a changed flag, and field-level diffs with before/after values.

Monitors a webpage's outbound links, headings outline, and title for changes, returning a diff of what changed since the last check.

Monitors a webpage's readable plain text for changes by comparing each check against the previously stored result, returning change status and field-level diffs.

Bulk website security posture report for up to 20 domains in one call, returning A-F grades and detailed security findings per domain, processed concurrently in input order.

Runs a well-known file scan for a domain and returns whether the result has changed since the previous call, including a field-level diff with before/after values.

Monitors a webpage's word frequency and alerts when it changes compared to the previous check, returning changed status and before/after field diffs.

Monitors a domain for changes in WordPress detection and fingerprint results, returning current status, a changed flag, and before/after field diffs since the last check.

Fetches ads.txt file data for up to 20 domains in a single concurrent call, returning per-domain results in input order with per-item error fields.

Checks BIMI DNS records for up to 20 domains in one concurrent call, returning per-domain results in input order with per-item error fields and a failure count.

Bulk-fetch certificate transparency log history for up to 20 domains in a single concurrent call, returning per-domain SSL/TLS issuance records with per-item error reporting.

Detects the CMS and platform for up to 20 domains in a single concurrent batch call, returning results in input order with per-item errors.

Extracts code blocks from up to 20 URLs concurrently in a single call, returning results in input order with per-item error reporting.

Checks HTTP compression (gzip/brotli/deflate) for up to 20 URLs in a single concurrent batch call, returning per-item results in input order with error fields and a failure count.

Checks DMARC DNS records for up to 20 domains in a single concurrent call, returning per-domain results in input order with per-item error reporting.

Bulk-resolves IPv6 AAAA DNS records for up to 20 domains in one concurrent call, returning ordered results with per-item error fields and a failure count.

Checks up to 20 IP addresses against DNS blacklists (DNSBL) in a single concurrent batch call, returning per-item results in input order.

Fetches DNS CAA (Certification Authority Authorization) records for up to 20 domains in a single concurrent batch call, returning results in input order with per-item error reporting.

Checks DNS-to-HTTP consistency for up to 20 domains in a single concurrent batch, returning per-item results in input order with error fields and a failure count.

Runs a DNS-vs-HTTP consistency check for a domain, compares it against the previous result (stored 90 days), and returns whether anything changed, exactly which fields changed with before/after values, and the last-seen timestamp.

Bulk DNS HTTPS/SVCB record lookup for up to 20 domains in one concurrent call, returning ordered results with per-item errors and failure count.

Looks up DNS MX (mail exchange) records for up to 20 domains in a single concurrent batch call, returning results in input order with per-item error fields.

Checks up to 20 domains at once for wildcard DNS configuration, returning concurrent results in input order with per-item error reporting.

Checks up to 20 domains at once for fraud and phishing risk, returning a risk report per domain in input order with per-item error handling.

Monitors the domain/company intelligence derived from an email address and reports when it changes compared to a previous check, including exactly which fields changed with before/after values.

Normalizes up to 20 email addresses in a single concurrent batch call, returning standardized results in input order with per-item error reporting.

Monitors changes in email normalization results over time, alerting when the normalized form of an email address changes between checks

Monitors email provider detection for an address or domain and alerts when the detected provider changes between calls, returning diff details and timestamps.

Extracts FAQ content from up to 20 URLs concurrently in a single call, returning ordered results with per-item error reporting.

Monitors a domain's favicon and app icon data over time, returning the current result, a changed flag, and field-level before/after diffs compared to the previous call (stored 90 days).

Extracts and classifies footer links from up to 20 URLs in a single concurrent batch call, returning results in input order with per-item error reporting.

Monitors a URL's footer link extraction (with classification) and returns whether it changed since the last check, with before/after field diffs.

Detects and extracts HTML forms from up to 20 URLs in a single concurrent batch call, returning per-item results in input order with error fields and a failure count.

Browse and download public-domain books tagged with the 'African Americans' Library of Congress subject from Project Gutenberg and Internet Archive, ranked by relevance and popularity.

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'American poetry', ranked by relevance and popularity, with direct epub/txt/html download links.

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'Americans', ranked by relevance and popularity, with direct epub/txt/html download links.

Browse and retrieve free public-domain books tagged with the Library of Congress subject 'American wit and humor', with download links and popularity rankings.

Returns a paginated catalogue of free public-domain books about birds from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with download links.

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'Canada', with download links, ranked by relevance and popularity.

Returns a ranked, paginated catalogue of free public-domain children's books from Project Gutenberg and Internet Archive, with epub/txt/html download links

Browses and returns a paginated catalogue of free public-domain children's poetry books from Project Gutenberg and Internet Archive, ranked by relevance and popularity with direct download links.

Browse and download free public-domain books tagged with the 'Christian life' Library of Congress subject from Project Gutenberg and Internet Archive, ranked by relevance and popularity.

Returns a paginated catalogue of free public-domain books tagged with the 'Christmas stories' Library of Congress subject, ranked by relevance and popularity, with direct download links in epub, txt, and html formats.

Returns a ranked, paginated catalogue of free public-domain books tagged with the 'Clergy' Library of Congress subject, with direct epub/txt/html download links, browsable and filterable by title or author.

Returns a paginated catalogue of free public-domain comedy play books tagged with the Library of Congress subject 'Comedy plays', sourced from Project Gutenberg and Internet Archive, with download links and optional title/author filtering.

Browse and search a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'Conduct of life', with download links in epub/txt/html formats.

Returns a paginated catalogue of free public-domain books tagged with the 'Country life' Library of Congress subject, with download links, ranked by relevance and popularity.

Returns a paginated catalogue of free public-domain detective and mystery fiction books from Project Gutenberg and Internet Archive, with epub/txt/html download links, ranked by relevance and popularity.

Returns a paginated catalogue of free public-domain books on dogs from Project Gutenberg and Internet Archive, with download links, ranked by relevance and popularity.

Returns a ranked, paginated catalogue of free public-domain domestic fiction books with epub/txt/html download links, optionally filtered by title or author keywords.

Browse and retrieve a paginated catalogue of free public-domain English fiction books from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with download links.

Browse and download free public-domain books tagged with the 'English language' Library of Congress subject from Project Gutenberg and Internet Archive, ranked by relevance and popularity.

Browse and retrieve paginated public-domain English literature books from Project Gutenberg and Internet Archive, with epub/txt/html download links, ranked by relevance and popularity.

Browse and download free public-domain English poetry books from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with optional keyword filtering by title or author.

Browse and download free public-domain books tagged under the 'Essays' subject from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with direct download links.

Returns a paginated catalogue of free public-domain books tagged with the 'Europe' Library of Congress subject, ranked by relevance and popularity, with direct epub/txt/html download links.

Returns a ranked, paginated catalogue of free public-domain fairy tale books from Project Gutenberg and Internet Archive, with download links in epub/txt/html formats.

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress 'Families' subject, ranked by relevance and popularity, with epub/txt/html download links.

Returns a paginated catalogue of free public-domain fantasy fiction books with download links, sourced from Project Gutenberg and Internet Archive, ranked by relevance and popularity.

Returns a paginated, relevance-ranked catalogue of free public-domain French literature works from Project Gutenberg and Internet Archive, with epub/txt/html download links.

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'Greece' from Project Gutenberg and Internet Archive, with download links

Browse and download free public-domain horror tales books from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with epub/txt/html links.

Returns a paginated catalogue of free public-domain and open-licensed Latin-language books from Project Gutenberg and Internet Archive, sorted by popularity, with download links.

Returns a paginated list of free public-domain and free-licensed Welsh-language books from Project Gutenberg and Internet Archive, with download links, sorted by popularity, with optional keyword search.

Returns a ranked, paginated catalogue of free public-domain books tagged with the Library of Congress 'Islands' subject, with direct epub/txt/html download links, re-verified daily.

Browse and download free public-domain books tagged under the 'Legends' Library of Congress subject from Project Gutenberg and Internet Archive, ranked by relevance and popularity.

Browse and download free public-domain books tagged under 'Literature' from Project Gutenberg and Internet Archive, ranked by relevance and popularity, with epub/txt/html download links.

Returns a paginated catalogue of free public-domain books tagged with the Library of Congress subject 'Marriage', ranked by relevance and popularity, with direct download links.

Browse and download free public-domain books tagged with the 'Murder' Library of Congress subject, ranked by relevance and popularity, with epub/txt/html download links.