1182 Services from agentshelf.syntexa.ch

Performs a structured SEO and technical audit of a public URL, returning an overall score (0–100), HTTPS status, meta tags, robots directives, canonical tags, JSON-LD, H1 counts, load hints, and a list of issues.

Computes a SHAKE256 hash of input text with an optional key and returns the digest encoded as base64url

Fetches and parses an RSS or Atom feed URL into structured items including title, link, published date, and summary (up to 50 items), with SSRF protection.

Extracts de-duplicated public email addresses (up to 100) from a given page URL or raw HTML

Computes the SHA-384 cryptographic hash of a given text string and returns it encoded as base64

Extracts text and attributes from a public webpage or raw HTML using user-specified CSS selectors, with SSRF protection and a node cap.

Fetches the main content of a public HTTP(S) URL and returns it as Markdown along with the page title and final resolved URL, with SSRF protection.

Computes a SHA-256 cryptographic hash of input text and returns the digest encoded as a Base64 string, with no network calls or LLM involvement.

Fetches a public URL and returns Mozilla Readability-parsed article content as Markdown, plus title, byline, excerpt, and final URL — SSRF-safe, paid via x402.

Performs HTTP HEAD requests on up to 20 public URLs and returns status codes, SSRF-safe, for $0.01 USDC per call.

Extracts all key metadata from a public web page including title, description, canonical URL, robots directives, Open Graph tags, Twitter Card tags, and favicons

Extracts JSON-LD structured data blocks from a public web page URL or raw HTML content, safely guarded against SSRF.

Validates the checksum of a French VAT (TVA) number without performing a live registry lookup

Extracts the meta generator tag from a public webpage or raw HTML string, with SSRF protection.

Validates whether a Hungarian VAT number has a valid checksum, with no external registry lookup.

Computes a SHA-256 or MD5 hex digest of provided text, entirely server-side with no external network calls.

Computes the CRC32 checksum of a given text string and returns it as a hexadecimal string, with no network or LLM calls.

Validates the checksum of a Slovenian (SI) VAT number without performing a live registry or VIES lookup

Computes a RIPEMD-160 cryptographic hash of input text and returns it encoded as a base64url string

Extracts all href attributes from anchor tags on a public webpage or provided HTML using XPath (//a/@href), returning a deduplicated list of links.

Validates whether a Belgian VAT number has a correct checksum using pure algorithmic verification, without performing any live registry lookup.

Retrieves the DKIM TXT DNS record at key1._domainkey.{hostname} for a given domain

Parses a raw User-Agent string into structured browser, OS, and device components without any network calls

Computes an HMAC-SHA224 message authentication code over a given text using a caller-supplied key and returns the result encoded as base64.

Translates a cron expression into a plain-English description of its schedule

Given a 6-field cron expression and an optional start datetime, returns the next 12 UTC scheduled times that match the expression.

Extracts canonical URL(s) from a public webpage or raw HTML by selecting link[rel='canonical'] elements, with SSRF protection.

Computes a SHA-512/224 cryptographic hash of input text and returns it as a lowercase hexadecimal string

Converts XML strings to JSON, rejecting DTD declarations and external entities for safety, with no network access.

Extracts JSON-LD @type Organization structured data from a public webpage URL or raw HTML, in an SSRF-safe manner.

Computes a BLAKE2b-512 cryptographic hash of input text and returns it as a lowercase hexadecimal string.

Looks up the TXT record at google._domainkey.{hostname} to retrieve the Google DKIM public key for a given domain.

Computes a SHA-224 cryptographic hash of input text and returns it encoded as base64url, with no network or LLM dependency.

Computes an HMAC-SHA1 digest of a given text using a caller-supplied key, returning the result encoded as base64url.

Computes a BLAKE2b-512 cryptographic hash of input text and returns it encoded as base64url, with optional keyed hashing.

Computes a SHA-256 hash of input text and returns the result encoded as a lowercase hexadecimal string, with no network calls or LLM involvement.

Computes a SHA-512/224 cryptographic hash of input text and returns the digest encoded as base64, with no network calls or LLM involvement.

Extracts JSON-LD @type Course structured data from a public webpage URL or raw HTML, SSRF-safe, for $0.009 USDC per call.

Extracts text content from HTML table cells (td elements) in a public webpage or raw HTML using CSS selection, returning the matched cell values.

Extracts text from a PDF (via public URL or base64-encoded content) and returns it as formatted Markdown for $0.01 USDC per call.

Validates a JSON value against a provided JSON Schema and returns whether it conforms, with no network or LLM calls involved.

Computes an HMAC-SHA1 digest of input text using a caller-supplied secret key, returning the result encoded as base64.

Extracts all unique, de-duplicated hyperlinks (up to 500) from a public URL or provided HTML content

Computes the SHA-1 hash of a given text string and returns it as a lowercase hexadecimal digest

Generates a markdown heading-based table of contents from a provided markdown document, with no network calls required.

Computes a SHAKE-256 cryptographic hash of input text and returns the digest encoded in Base32 format.

Looks up the DKIM TXT DNS record at smtp._domainkey.{hostname} and returns its value

Strips UTM and other tracking query parameters from a URL, returning a clean URL with no network requests.

Checks whether a given URL path is allowed for a specified user agent according to the site's robots.txt rules, with SSRF protection.

Converts a YAML string into its JSON equivalent, with no network access or LLM involvement, for a fixed cost of $0.001 USDC.

Extracts published and modified dates from a public web page URL or raw HTML input, with SSRF protection.

Fetches response headers from a public URL using an SSRF-safe HEAD or GET request

Splits a text string into overlapping chunks by character count or token count, returning an array of text segments suitable for downstream processing.

Extracts the main body text from a public web page or HTML string using CSS-based heuristics, with SSRF protection.

Extracts all heading text (h1–h6) from a public webpage URL or raw HTML string, returning structured heading data in an SSRF-safe manner.

Extracts the main article text from a public web page URL or raw HTML using CSS-based parsing, with SSRF protection.

Extracts all anchor href values (via CSS selector a[href]) from a public URL or raw HTML, with SSRF protection.

Given a 6-field cron expression and an optional start datetime, returns the next 8 UTC scheduled execution times for that cron schedule.

Validates whether a Bulgarian VAT number passes the official checksum algorithm, without performing any live registry lookup.

Given a 5-field cron expression and an optional starting datetime, returns the next 5 UTC scheduled execution times.

Redacts (removes or masks) all URL matches found in a given text string, returning the sanitized text without storing any data.

Validates the checksum of an Estonian (EE) VAT number without performing a live registry lookup

Given a 5-field cron expression and an optional start datetime, returns the next 3 UTC scheduled execution times

Validates the checksum of a Finnish (FI) VAT number without performing a live registry lookup

Computes a SHA-224 cryptographic hash of input text and returns the result encoded as a Base32 string

Validates whether a given string is a correctly formatted ISBN-10 or ISBN-13 identifier

Computes the SHA-1 hash of an input text string and returns it encoded as a base64url string, with no network or LLM calls involved.

Computes a SHA-1 hash of input text and returns it encoded as a base64 string, with no network or LLM involvement.

Computes the SHA-1 hash of a given text and returns it encoded as a Base32 string, with no network or LLM involvement.

Computes the RIPEMD-160 cryptographic hash of input text and returns it as a lowercase hexadecimal string

Computes a RIPEMD-160 cryptographic hash of input text and returns the digest encoded as a base64 string

Computes the MD5 hash of a given text string and returns it as a lowercase hexadecimal digest, with no network or LLM calls involved.

Computes the MD5 hash of a given text string and returns it encoded as base64, with no network calls or LLM involved.

Computes the MD5 hash of a given text string and returns it encoded in Base32 format, entirely offline with no network or LLM calls.

Computes a BLAKE2s-256 cryptographic hash of input text and returns it encoded as base64url, with no network calls or LLM involved.

Computes a BLAKE2s-256 cryptographic hash of input text and returns it encoded as a base64 string

Computes a BLAKE2s-256 cryptographic hash of input text and returns it encoded as a Base32 string, with no network calls or LLM involvement.

Computes a word-level diff between two input strings and returns the differences, with no network dependencies.

Computes a unified diff between two input strings and returns the diff output, with no network calls and a fixed cost of $0.002 USDC.

Converts a CSV string into a JSON array of objects, with optional delimiter configuration, at a fixed cost of $0.002 USDC per call.

Computes a SHAKE256 hash of the provided text and returns the result encoded as a hexadecimal string

Computes a SHA-512 cryptographic hash of input text and returns it encoded as a Base32 string, with no network or LLM involvement.

Encodes a text string using the Base45 encoding scheme, returning the Base45-encoded result with no network calls or LLM involvement.

Computes a SHA-512/256 cryptographic hash of input text and returns it encoded as a Base32 string, with no network calls or LLM involvement.

Computes a SHA-384 cryptographic hash of input text and returns it as a hexadecimal-encoded string.

Computes the SHA-512/256 cryptographic hash of a given text string and returns it as a hexadecimal-encoded digest.

Computes a SHA-384 cryptographic hash of input text and returns it encoded as a Base32 string, with no network calls or LLM involvement.

Computes a SHA3-512 cryptographic hash of input text and returns it as a hexadecimal-encoded string, with no network or LLM calls involved.

Computes a SHA3-512 cryptographic hash of input text and returns it encoded as base64url, with no network calls or LLM involvement.

Computes a SHA3-384 cryptographic hash of input text and returns the digest encoded as a Base64 string.

Computes a SHA3-224 cryptographic hash of input text and returns it encoded as base64url, with no network calls or LLM involved.

Computes a BLAKE2b-512 cryptographic hash of input text and returns it encoded as a Base32 string, with optional HMAC key support.

Extracts all href attributes from <link> elements in a public web page or provided HTML, with SSRF protection.

Extracts JSON-LD structured data from the script[type='application/ld+json'] tag of a public web page or raw HTML, with SSRF protection.

Validates the checksum of an Austrian VAT (UID) number without performing a live registry lookup

Computes a SHA-256 cryptographic hash of input text and returns it encoded as a base64url string, with no network or LLM involvement.

Redacts phone number matches from a given text string, returning the sanitized text without storing any data.

Computes a SHA-512 cryptographic hash of input text and returns the result encoded as a base64url string.

Generates a deterministic UUID v3 by hashing a given text string in the URL namespace using MD5.

Extracts the text content of the HTML <title> element from a public URL or raw HTML string using a CSS/XPath selector.

Extracts the content of the HTML meta description tag (meta[name='description']) from a public URL or raw HTML string, SSRF-safe.

Extracts all H4 heading text from a public web page or raw HTML using XPath, with SSRF protection.

Extracts HTML tables from a public URL or raw HTML string and returns them as structured JSON with headers and rows

Fetches and summarizes the TLS/SSL certificate details for a given public hostname or URL, blocking private IPs.

Fetches and returns all URLs from a given sitemap or sitemap index, SSRF-safe, capped at 1000 URLs and one index level deep

Audits a public URL for the presence and configuration of CSP, HSTS, X-Frame-Options, Referrer-Policy, and Permissions-Policy HTTP security headers

Detects and redacts payment card numbers from arbitrary text, returning the sanitized text without storing any data.

Decodes quoted-printable encoded text into its original plain-text form, with no network or LLM involved.

Extracts the main body text from a public web page URL or raw HTML, with SSRF protection

Extracts application/rss+xml alternate href links from a public webpage or provided HTML content, with SSRF protection.

Extracts the og:image URL from a public web page or raw HTML, with SSRF protection.

Extracts all JSON-LD blocks from a public webpage or raw HTML and returns them as parsed JSON text, with SSRF protection.

Extracts the first H1 heading text from a public web page URL or raw HTML input, with SSRF protection.

Computes a BLAKE2b-512 cryptographic hash of input text and returns it encoded as Base64, with optional HMAC keying.

Validates whether a given IBAN is a mod-97-valid Spanish (ES) IBAN of exactly 24 characters

Normalizes a phone number string to E.164 international format given a known country region code, with no external network calls.

Heuristically detects the natural language of a given text string without using an LLM or external network calls.

Deterministically repairs malformed or broken JSON text and returns the fixed JSON along with a list of transforms applied

Evaluates a JSONPath expression against a provided JSON value and returns the matching results, with no external network calls.

Looks up geographic location, ASN, and ISP data for a given public IP address

Converts an HTML string to plain text by stripping all scripts, styles, and markup tags

Converts raw HTML content to clean markdown format, with optional base URL for resolving relative links

Sanitizes HTML input against an allowlist of safe tags and URLs, stripping dangerous content without any network calls

Extracts all hreflang alternate link elements from a public URL or raw HTML, returning a structured list of language/region alternates.

Computes an HMAC-SHA512 digest of a given text using a caller-supplied secret key, returning the result as a lowercase hex string.

Computes an HMAC-SHA512 signature of a given text using a caller-supplied key and returns the result encoded as base64.

Computes an HMAC-SHA384 digest of text using a caller-supplied key and returns it encoded as base64url

Computes an HMAC-SHA256 message authentication code over a given text using a caller-supplied key, returning the result as a lowercase hexadecimal string.

Computes an HMAC-SHA256 message authentication code of input text using a caller-supplied key, returning the result encoded as base64url.

Computes an HMAC-SHA1 of a given text using a caller-supplied key and returns the result as a lowercase hex string.

Computes an HMAC-BLAKE2b-512 digest of input text using a caller-supplied key and returns the result encoded as base64url

Fetches the SPF TXT record (v=spf1...) from the DNS of a given hostname

Retrieves the DKIM TXT record at selector3._domainkey.{hostname} via DNS lookup

Fetches the DKIM TXT record at selector1._domainkey.{hostname} via DNS lookup

Looks up the DKIM TXT DNS record for ProtonMail (protonmail._domainkey) at a given hostname

Extracts all nofollow anchor hrefs (a[rel~='nofollow']) from a public URL or raw HTML, SSRF-safe

Resolves public DNS records (A, AAAA, MX, TXT, CNAME) for a given hostname, blocking private/internal targets

Resolves a hostname to its IPv6 (AAAA) addresses via DNS lookup, returning an error if no AAAA records exist.

Computes a SHAKE128 (XOF) cryptographic digest of input text and returns the result encoded as a Base32 string.

Computes a SHA-512 cryptographic hash of input text and returns the result encoded as a hexadecimal string.

Computes a SHA-512 hash of input text and returns it encoded as a Base64 string, with no network calls or LLM involvement.

Computes a SHA-512/256 cryptographic hash of input text and returns the digest encoded as base64

Computes a SHA-512/224 cryptographic hash of input text and returns the digest encoded as a Base32 string

Computes a SHA-384 cryptographic hash of input text and returns it encoded as base64url, with no network or LLM calls.

Computes a SHA3-512 cryptographic hash of input text and returns it encoded as base64, with no network calls or LLM involved.

Computes a SHA3-512 cryptographic hash of input text and returns it encoded as a Base32 string, with no network calls or LLM involved.

Computes a SHA3-384 cryptographic hash of input text and returns it as a lowercase hex-encoded string

Computes a SHA3-224 cryptographic hash of input text and returns the result encoded as a Base32 string

Computes the SHA-224 cryptographic hash of input text and returns it as a hexadecimal-encoded digest string.

Computes a SHA-224 cryptographic hash of input text and returns it encoded as a base64 string, with no network or LLM calls involved.

Validates whether a Dutch (NL) VAT number has a correct checksum, without performing a live registry lookup.

Computes a RIPEMD-160 cryptographic hash of input text and returns it encoded as a Base32 string, with no network calls or LLM involvement.

Extracts JSON-LD @type Dataset structured data from a public webpage URL or raw HTML, returning the parsed schema.org Dataset objects found on the page.

Extracts the color-scheme meta tag value from a public webpage or raw HTML, with SSRF protection.

Resolves a hostname to its IPv4 addresses only, returning an error if no A records are found.

Redacts JWT tokens found within a text string, returning the text with JWTs replaced or masked, without storing any data.

Extracts the HTML document title from a public web page URL or raw HTML string, in an SSRF-safe manner.

Extracts the meta description tag from a public web page URL or raw HTML, with SSRF protection

Extracts the content attribute of the meta[name='description'] tag from a given public URL or raw HTML string

Extracts the action attribute (URL) from HTML form elements using XPath //form/@action, given a public page URL or raw HTML.

Computes a BLAKE2s-256 cryptographic hash of a UTF-16LE-encoded string and returns the digest as a lowercase hex string.

Finds and redacts PEM-encoded certificate/key blocks from text, returning the sanitized output without storing any data

Extracts JSON-LD @type Offer structured data from a public web page URL or raw HTML, with SSRF protection.

Fetches the DKIM PIC TXT record at pic._domainkey.{hostname} via live DNS resolution

Extracts JSON-LD @type LocalBusiness structured data from a public webpage URL or raw HTML content

Extracts all h1–h6 heading text from a public webpage URL or raw HTML, with SSRF protection.

Computes a SHA3-384 cryptographic hash of Latin-1 encoded text and returns the digest encoded as Base64.

Computes a SHA-1 hash of Latin-1 encoded bytes from the given text and returns it as a Base32-encoded string.

Generates a deterministic UUID v5 using the DNS namespace from a given text input

Validates whether a card number passes the Luhn checksum algorithm and matches the UnionPay card network pattern

Extracts text content of all <li> elements from a public web page or raw HTML using XPath //li selection, with SSRF protection.

Decodes a UTF-16 hex-encoded string back into readable text, with no network calls or LLM involvement.

Extracts the text content of footer elements (matched via XPath //footer) from a public web page URL or raw HTML input, with SSRF protection.

Converts arbitrary text into a URL slug using hyphens as separators, capped at 120 characters, preserving Unicode letters

Converts arbitrary text into a URL-friendly slug using hyphens, ASCII-folded and capped at 160 characters

Extracts textarea name attribute values from a public web page URL or raw HTML, with SSRF protection.

Decodes a Base58Check-encoded P2PKH Bitcoin address into its raw components (version byte, payload, checksum) without any network calls or LLM involvement.

Decodes a Base58Check-encoded P2SH (Pay-to-Script-Hash) string into its component parts, entirely offline without network or LLM calls.

Validates whether a card-shaped number string passes the Luhn (mod-10) checksum algorithm

Validates whether a given string is a valid 5-field cron expression

Validates whether an IBAN string matches the expected country-specific length and passes the mod-97 checksum, supporting all known country formats.

Validates whether a given string is a mod-97-valid Estonian IBAN (EE prefix, length 20)

Validates whether a given string is a mod-97-valid Norwegian IBAN (country code NO, exactly 15 characters long).

Validates whether a given string is a mod-97-valid Portuguese IBAN (country code PT) of exactly 25 characters.

Checks whether a given string is a valid caret semver range (e.g. ^1.2.3)

Validates whether a Danish VAT (CVR) number passes the DK checksum algorithm, without performing a live registry lookup.

Validates whether a UK (GB) VAT number has a correct checksum, using local computation only — no HMRC registry lookup.

Computes the CRC16-CCITT checksum of input text and returns the result as a decimal integer.

Computes the CRC16 checksum of an input text string and returns the result as a decimal integer, with no network calls or LLM involved.

Computes a CRC32C checksum of the provided text and returns it as a hexadecimal string, with no network calls or LLM involved.

Computes the Fletcher-16 checksum of a given text string and returns the result as a hexadecimal value

Given a 6-field cron expression and a start datetime, returns the next 5 UTC times the cron job would fire.

Extracts anchor text from <a> elements on a public web page or raw HTML using CSS selector targeting, with SSRF protection

Extracts CSS code text from a public web page URL or raw HTML, with SSRF protection.

Extracts img[srcset] attribute values from a public webpage URL or raw HTML, returning all image srcset strings found in the document.

Extracts navigation anchor hrefs from a public webpage or raw HTML using CSS selector nav a[href], with SSRF protection.

Computes a BLAKE2s-256 digest of hex-encoded bytes and returns the result encoded as base64

Computes a keyed BLAKE2s-256 hash of Latin-1 encoded text and returns the digest as a Base64URL string

Computes a BLAKE2s-256 cryptographic hash of input text and returns it as a lowercase hex-encoded string

Computes an MD5 digest of text encoded as UTF-16LE bytes, then encodes the result as Base32

Computes a SHA-1 hash of raw hex-encoded bytes and returns the digest encoded as base64url

Computes a SHA3-256 cryptographic hash of input text and returns it encoded as a base64 string

Computes a SHA3-256 cryptographic hash of input text and returns it encoded as base64url

Computes a SHA-512/256 cryptographic hash of a latin1-encoded byte string and returns it as a base64-encoded digest.

Computes a SHA-512 hash of latin1-encoded input text and returns it encoded as a Base32 string.

Computes a SHAKE256 (extendable-output hash) digest of input text and returns it encoded as base64

Looks up the DKIM public key TXT record at selector2._domainkey.{hostname} via DNS

Retrieves the DKIM TXT DNS record for a given hostname's Zendesk mail-signing selector (zendesk._domainkey.{hostname})

Extracts phone numbers from a public webpage URL or raw HTML content in an SSRF-safe manner.

Computes an HMAC using the BLAKE2b-512 hash function with a caller-supplied key and returns the result as a lowercase hex string

Computes an HMAC using the BLAKE2s-256 algorithm over caller-supplied text with a caller-supplied key, returning the result encoded as base64.

Computes an HMAC-MD5 message authentication code for a given text using a caller-supplied secret key, returned as a base64-encoded string.

Computes an HMAC-SHA256 digest of a given text string using a caller-supplied key and returns the result encoded as base64.

Computes an HMAC-SHA3-512 digest of a given text using a caller-supplied key and returns the result encoded as base64url.

Parses iCalendar (iCal) text and extracts structured VTODO (task/to-do) items from it

Validates whether a given string is a valid UUID version 1, with no network calls required.

Validates whether a given string is a valid UUID v4 format, without any network calls or external lookups.

Converts a JSON value to its equivalent YAML representation, entirely offline with no network or LLM calls.

Decodes Morse code text into plain text without using a network call or LLM, returning the decoded string.

Normalizes input text using Unicode NFD (Canonical Decomposition) form, returning the decomposed string without any network or LLM involvement.

Extracts anchor hreflang attribute values from a public webpage URL or raw HTML in an SSRF-safe manner

Extracts the article:author metadata field from a public webpage URL or raw HTML content, returning the author information in an SSRF-safe manner.

Extracts the article:published_time meta tag value from a given public URL or raw HTML content, in an SSRF-safe manner.

Extracts 'dd' (definition description) text elements from a public web page URL or raw HTML, with SSRF protection

Extracts all H2 heading text from a public webpage URL or raw HTML string, in an SSRF-safe manner.

Extracts itemprop (schema.org microdata) attribute values from a public web page URL or raw HTML snippet, with SSRF protection.

Extracts JSON-LD @type Person structured data from a public webpage URL or raw HTML, with SSRF protection.

Redacts (replaces/masks) MAC addresses found in a given text string, returning the sanitized text with no MAC addresses exposed.

Extracts up to 20 E.164-formatted phone numbers from a block of text using regex, no network calls required

Converts arbitrary text into a URL slug using underscores as separators, capped at 160 characters, preserving Unicode letters.

Converts arbitrary text into a URL slug using underscores as separators, capped at 40 characters, with ASCII folding applied

Computes heuristic text statistics (character count, word count, sentence count, reading time, language hint) from a given string — no LLM or network required.

Checks whether the negotiated TLS cipher on port 443 excludes weak/prohibited algorithms (NULL, EXPORT, RC4, DES)

Decodes a unicode-escape encoded string (e.g. \uXXXX sequences) into its plain text representation, locally without network or LLM calls.

Extracts the text content of all elements with aria-label attributes from a public web page or raw HTML using the XPath expression //*[@aria-label]

Extracts the main article text from a public webpage or raw HTML using XPath-based heuristics, with SSRF protection.

Extracts the text content of all H2 elements from a public web page URL or provided HTML using XPath, with SSRF protection.

Extracts the href attribute of the first link element with rel='icon' from a public webpage or raw HTML using XPath

Decodes a hexadecimal-encoded string back to its original plain text representation, with no network calls or LLM involvement.

Extracts up to 20 UUID strings from arbitrary text using regex matching, returning all matches found.

Extracts text content from a public web page or raw HTML using an XPath query, with SSRF protection.

Extracts itemprop attribute values from a public URL or raw HTML using the [itemprop] CSS selector, with SSRF protection.

Encodes arbitrary text using the Base32Hex (extended hex) alphabet, returning the encoded string without any network or LLM calls.

Computes a SHA-512 hash of latin1-encoded text bytes and returns the digest encoded as base64.

Validates whether a given string is a mod-97-valid Belgian IBAN (BE) of exactly 16 characters.

Validates whether a given string is a mod-97-valid Romanian IBAN (RO) of exactly 24 characters in length

Computes the CRC16-CCITT checksum of input text and returns it as a hexadecimal string, with no network or LLM involvement.

Computes the next single UTC datetime at which a 6-field cron expression will fire, given a starting datetime.

Extracts button text from CSS-styled buttons on a public webpage or raw HTML fragment

Extracts the text content of the first H1 element from a public URL or raw HTML, with SSRF protection.

Extracts all H2 heading text from a public web page URL or raw HTML input, with SSRF protection.

Extracts the document title text from a public webpage URL or raw HTML string using CSS title selector, with SSRF protection.

Computes a BLAKE2s-256 hash of text encoded as UTF-16LE bytes, returning the digest as a base64url string, with an optional HMAC key.

Retrieves the TXT record at default._domainkey.{hostname} to fetch the DKIM public key for the default selector of a given domain

Validates the syntactic correctness of an email address string without making any network or SMTP connections

Computes an HMAC using the BLAKE2s-256 hash function with a caller-supplied key over input text, returning the result as a lowercase hex string.

Applies Unicode NFKC normalization followed by casefolding to an input text string, with no network or LLM dependencies.

Extracts a citation DOI from a public web page or raw HTML content, with SSRF protection.

Extracts JSON-LD @type Product structured data from a public webpage URL or raw HTML snippet, SSRF-safe.

Extracts the og:title Open Graph meta tag value from a public web page URL or raw HTML, with SSRF protection.

Detects and redacts IBAN numbers found in text, replacing them with placeholder tokens, with no data stored server-side.

Finds and redacts all IPv4 addresses in a given text string, replacing them with a placeholder, with no data retained server-side.

Redacts all UUID patterns found in the provided text, replacing them with masked tokens

Extracts up to 20 DOI (Digital Object Identifier) matches from a given text string using regex, with no network calls.

Converts arbitrary text into a URL-safe slug using hyphens, ASCII-folded and capped at 40 characters

Generates a deterministic UUID version 3 using the DNS namespace from a given input text string

Extracts the href value of the AMP HTML link element (link[rel='amphtml']) from a public web page URL or raw HTML string

Extracts cited text fragments from a public webpage or HTML using XPath selectors, in an SSRF-safe manner.

Evaluates XPath expressions against a public URL or raw HTML to extract text content, with SSRF protection on URL fetching.

Extracts the text content of the main element (//main) from a public web page or provided HTML using XPath, with SSRF protection.

Validates whether a given ISBN-10 string has a correct checksum digit

Encodes a text string using Python-style unicode-escape encoding, returning the escaped byte representation, with no network calls or LLM involvement.

Extracts the canonical URL from a public webpage or raw HTML using the XPath selector //link[@rel='canonical']/@href

Validates whether a given IBAN string is a structurally correct, mod-97-valid Montenegrin (ME) IBAN of exactly 22 characters

Redacts Social Security Number (SSN) matches from input text, returning the sanitized text without storing any data

Extracts datetime attributes from //time elements via XPath from a public URL or raw HTML, in an SSRF-safe manner.

Encodes a plain text string into Morse code without any network calls or LLM involvement, for a flat $0.007 USDC fee.

Extracts all link[rel=license] href values from a given public URL or raw HTML string, returning the license URLs found on the page.

Extracts favicon/icon hrefs from link[rel='icon'] elements in a public webpage or provided HTML content, with SSRF protection.

Fetches the DNS TXT record at the zoho._domainkey subdomain of a given hostname to retrieve its Zoho DKIM public key entry

Converts a Markdown string (headings, lists, links, code blocks, emphasis) to rendered HTML, with no network access required.

Computes a SHA3-224 cryptographic hash of input text and returns it encoded as a base64 string

Computes an HMAC-SHA3-512 digest of a given text using a caller-supplied key, returning the result as a base64-encoded string.

Counts word unigram (1-gram) frequencies in a given text string, returning exact word occurrence counts without network calls or LLM processing.

Decodes a percent-encoded (URL-encoded) string into its original plaintext form, with no network calls or LLM involvement.

Retrieves the DKIM TXT record for the s2 selector at the given hostname (i.e., s2._domainkey.{hostname})

Computes an HMAC-MD5 message authentication code of input text using a caller-supplied key and returns the result encoded as base64url.

Fetches structured brand/product mention briefs from public web sources, returning theme clusters, sentiment, and licensed samples.

Extracts audio src attribute values from a public web page URL or raw HTML input, in an SSRF-safe manner.

Encodes arbitrary text using Base58Check encoding with P2PKH (Pay-to-Public-Key-Hash) format, purely offline with no network or LLM involvement.

Decodes a base62-encoded string back to its original plaintext representation, with no network calls or LLM involved.

Validates whether an email address has syntactically valid RFC-compliant structure, without performing any mailbox or DNS lookup.

Validates whether a given string is a mod-97-valid UK (GB) IBAN of exactly 22 characters

Validates whether a given ISSN (International Standard Serial Number) has a correct checksum

Extracts link[rel] attribute values from a public webpage or raw HTML using CSS selector parsing, with SSRF protection.

Extracts RSS feed hrefs from link[type='application/rss+xml'] elements in a public webpage or raw HTML string

Extracts all script[src] URLs from a public webpage or raw HTML content in an SSRF-safe manner

Extracts and returns a summary of text content from a public web page URL or raw HTML, with SSRF protection.

Computes a SHA-256 hash of input text and returns it encoded as a Base32 string, with no network calls or LLM involvement.

Computes a SHA3-384 cryptographic hash of input text and returns it encoded as a Base32 string

Retrieves the DNS TXT record at mandrill._domainkey.{hostname} for Mandrill DKIM email authentication verification

Computes an HMAC using SHA3-512 of a given text with a caller-supplied key, returning the result as a lowercase hex string.

Counts occurrences of every character-level 4-gram (sliding window of 4 consecutive characters) in a given text string, with no network calls or LLM involvement.

Extracts JSON-LD structured data of type Article, NewsArticle, or BlogPosting from a public URL or raw HTML input, with SSRF protection.

Extracts link[rel=me] hrefs from a public webpage URL or raw HTML in an SSRF-safe manner

Extracts and returns a concise summary text from a public web page URL or raw HTML, with SSRF protection.

Encodes input text using the quoted-printable encoding scheme, returning the encoded output with no network calls or LLM involvement.

Computes a SHA-1 digest of latin1-encoded bytes from input text and returns it encoded as base64url.

Computes a SHA-1 hash of Latin-1 encoded bytes and returns the result as a lowercase hexadecimal string

Checks whether a given string is a valid IPv4 address and returns a boolean result

Computes a SHA-256 hash of a string encoded as UTF-16LE bytes, then returns the digest encoded as Base32

Computes a SHA-256 hash of the UTF-16LE byte encoding of a given text string, returning the digest encoded as a base64url string.

Computes a SHA-256 hash of Latin-1 encoded bytes from input text and returns the digest as a lowercase hex string.

Computes a SHA3-224 cryptographic hash of Latin-1 encoded text and returns the digest encoded as a Base32 string.

Computes a SHA3-224 cryptographic hash of input text and returns the result encoded as a hexadecimal string.

Computes a SHA3-256 cryptographic hash of input text and returns it encoded as a Base32 string, with no network calls or LLM involvement.

Validates whether a given string conforms to the BIC/SWIFT code format (shape check only, no network lookup).

Computes a SHA3-256 hash of text encoded as UTF-16LE bytes, returning the digest as a Base64 string

Computes a SHA3-256 cryptographic hash of input text and returns it as a hexadecimal string

Computes a SHA3-384 cryptographic hash of input text and returns the digest encoded as a base64url string

Validates whether a given string is a mod-97-valid British Virgin Islands (VG) IBAN of exactly 24 characters

Computes a SHA3-512 cryptographic hash of text encoded as UTF-16LE bytes, returning the digest as a base64url-encoded string.

Computes a SHA3-512 cryptographic digest of Latin1-encoded bytes and returns the result as a lowercase hex string.

Computes a SHA-384 cryptographic hash of Latin-1 encoded bytes and returns the digest encoded as Base32.

Validates whether a given IBAN is a mod-97-valid Liechtenstein (TL) IBAN of exactly 23 characters

Computes a SHA-384 hash of Latin-1 encoded bytes from input text and returns the digest encoded as base64url.

Computes the SHA-384 cryptographic hash of Latin1-encoded bytes from input text and returns the result as a lowercase hexadecimal string.

Computes a SHA-512/224 cryptographic hash of raw bytes supplied as a hex string and returns the digest encoded in base64.

Computes a SHA-512/224 cryptographic hash of text encoded as UTF-16LE bytes, returning the digest as a Base64 string.

Computes a SHA-512/224 cryptographic hash of the provided text and returns it encoded as a base64url string.

Computes a SHA-512/224 cryptographic hash of Latin-1 encoded text and returns the result as a lowercase hexadecimal string.

Computes a SHA-512/256 hash of hex-encoded byte input and returns the digest encoded as Base64.

Computes a SHA-512/256 cryptographic digest of a latin1-encoded text string and returns it encoded as base64url.

Computes a SHA-512/256 hash of raw hex-encoded bytes and returns the result encoded as base64url

Computes a SHA-512 cryptographic hash of text encoded as UTF-16LE bytes, returning the digest in Base32 encoding.

Computes a SHA-512 hash of raw hex bytes and returns the digest encoded as base64

Computes a SHA-512 hash of text encoded as UTF-16LE bytes and returns the result as a Base64 string

Computes a SHA-512 cryptographic hash of text encoded as UTF-16LE bytes, returning the digest as a base64url string

Computes a SHA-512 hash of Latin1-encoded text and returns the result as a lowercase hex string.

Validates whether a given string is a mod-97-valid Saudi Arabia IBAN (SA country code, exactly 24 characters long).

Computes a SHAKE-128 (XOF) cryptographic digest of input text and returns the result encoded as base64.

Computes a SHAKE-128 (XOF) hash of input text and returns the digest encoded as a base64url string.

Validates whether a given string is a mod-97-valid Polish IBAN (PL) of exactly 28 characters

Resolves SRV DNS records at _ldap._tcp.{hostname} for a given registrable domain name

Resolves _matrix._tcp SRV DNS records for a given hostname to support Matrix federation discovery

Resolves SRV records at _mqtt._tcp.{hostname} for a given registrable domain, returning MQTT broker connection details.

Looks up DNS SRV records at _xmpp-server._tcp.{hostname} for XMPP server-to-server federation discovery

Performs a live DNS TXT record lookup at the _atproto subdomain of a given hostname, returning the records used for AT Protocol DID verification.

Retrieves the DKIM TXT record published at the k2._domainkey subdomain for a given hostname

Validates whether a given string is a mod-97-valid Bosnian (BA) IBAN of exactly 20 characters

Validates whether a given string is a mod-97-valid IBAN of the Maltese (MT) format with a length of 31 characters

Looks up the TXT DNS record at ses._domainkey.{hostname} and returns its value, used to verify Amazon SES DKIM configuration.

Extracts li (list item) text content from a public webpage or raw HTML, returning structured list data in an SSRF-safe manner for $0.002 USDC.

Looks up the DMARC TXT record (starting with v=DMARC1) at the _dmarc subdomain of a given hostname via DNS

Extracts all image URLs from a given public webpage URL or raw HTML content, with SSRF protection.

Validates whether a given string is a structurally correct, mod-97-valid Luxembourg (LU) IBAN of exactly 20 characters.

Extracts an h1–h6 heading outline from a public URL or raw HTML, returning structured heading hierarchy.

Computes an HMAC using the BLAKE2b-512 hash function with a caller-supplied key and returns the result encoded as base64

Validates whether a given IBAN is a mod-97-valid Liechtenstein (LI) IBAN of exactly 21 characters

Validates whether a given IBAN is a structurally correct, mod-97-valid Kazakhstan (KZ) bank account number of exactly 20 characters.

Validates whether a given string is a mod-97-valid Kuwaiti IBAN (KW) of exactly 30 characters

Computes an HMAC-SHA3-256 message authentication code for a given text using a caller-supplied key and returns the result encoded as base64.

Computes an HMAC-SHA3-256 message authentication code for a given text using a caller-supplied key, returning the result encoded as base64url.

Computes an HMAC-SHA3-256 message authentication code for a given text and key, returning the result as a lowercase hex string.

Validates whether a given string is a mod-97-compliant Jordanian (JO) IBAN of exactly 30 characters.

Validates whether a given string is a mod-97-valid Italian IBAN of exactly 27 characters.

Encodes text by converting special characters to their HTML named entity equivalents (e.g. & → &amp;, < → &lt;)

Validates whether a given string is a mod-97-compliant Croatian (HR) IBAN of exactly 21 characters.

Parses raw iCalendar text and extracts structured VEVENT items from it

Parses iCalendar text and extracts structured VFREEBUSY (free/busy time) components from it

Returns the next single UTC datetime that a 5-field cron expression will fire, calculated from a given start time.

Validates whether a given string is a valid UUID version 3 (MD5-based namespace UUID)

Validates whether a given string is a mod-97-valid Greek (GR) IBAN of exactly 27 characters

Validates whether a given string is a mod-97-compliant Gibraltar (GI) IBAN of exactly 23 characters

Analyzes input text and returns the top N keywords by count and density percentage, computed locally without any network calls.

Normalizes line endings in text to LF (Unix-style) with a final newline, with no network or LLM involved.

Counts the frequency of every individual character (1-gram) in a given text string, returning exact character-level occurrence counts.

Extracts the canonical URL from link[rel='canonical'] tags in a public webpage or HTML content

Normalizes input text to Unicode NFC (Canonical Decomposition followed by Canonical Composition) form without any network calls or LLM involvement

Removes diacritical marks (accents, umlauts, cedillas, etc.) from text, returning plain ASCII-normalized output

Validates whether a given string is a mod-97-compliant Faroese IBAN of exactly 18 characters.

Extracts HTML form input field names from a public webpage or raw HTML content, with SSRF protection.

Extracts the application name from a public web page or provided HTML, using SSRF-safe fetching.

Extracts article:tag meta content from a public web page or raw HTML in an SSRF-safe manner

Extracts button text from a public web page or raw HTML, with SSRF protection

Extracts the citation title from a public web page or raw HTML in an SSRF-safe manner

Extracts citable text from a public web page URL or raw HTML, with SSRF protection, for use in agent-generated citations.

Extracts code elements (scripts, snippets, code blocks) from a public webpage URL or raw HTML content, with SSRF protection.

Extracts definition/description text (dt elements) from a public webpage or raw HTML, with SSRF protection

Extracts figcaption text from a public webpage URL or raw HTML input, with SSRF protection.

Extracts media source srcset attribute values from source[srcset] elements in a public webpage or raw HTML, with SSRF protection.

Extracts up to 20 LEI (Legal Entity Identifier) formatted tokens from a block of text using regex matching, with no network calls.

Extracts all h6 heading text from a public web page URL or raw HTML, with SSRF protection.

Validates whether a given IBAN string is a mod-97-valid Cyprus (CY) IBAN of length 28

Extracts img element data-src attribute values from a public webpage URL or raw HTML string, with SSRF protection.

Extracts input type attribute values from HTML form elements on a public webpage or raw HTML, with SSRF protection.

Validates whether a given string is a mod-97-valid Austrian IBAN (country code AT) with the correct length of 20 characters.

Extracts JSON-LD @type Event structured data from a public webpage URL or raw HTML, returning the parsed event schema markup.

Extracts JSON-LD @type HowTo structured data from a public URL or raw HTML, returning parsed schema.org HowTo objects.

Validates whether a given string is a mod-97-valid Brazilian IBAN of exactly 29 characters

Extracts the CSS video[poster] attribute value from a public webpage or raw HTML (SSRF-safe)

Extracts JSON-LD @type Review structured data from a public URL or raw HTML, returning machine-readable review schema objects.

Extracts JSON-LD @type VideoObject structured data from a public webpage URL or raw HTML, returning the parsed video metadata object.

Extracts JSON-LD structured data of @type WebSite from a public webpage URL or raw HTML, returning the schema.org WebSite entity.

Extracts hreflang attribute values from link elements on a public webpage or provided HTML, enabling internationalization and SEO analysis.

Extracts mark text from a public webpage or raw HTML (SSRF-safe), returning the content of HTML <mark> elements.

Extracts the meta author tag value from a public webpage or raw HTML document, SSRF-safe.

Extracts the meta robots directive from a public webpage or raw HTML content in an SSRF-safe manner

Extracts the og:audio Open Graph meta tag value from a public web page URL or raw HTML string, in an SSRF-safe manner.

Validates whether a given string is a mod-97-valid Bulgarian IBAN (BG format, exactly 22 characters long)

Extracts the og:site_name Open Graph meta tag from a public URL or raw HTML, with SSRF protection

Extracts the og:url Open Graph meta tag from a public webpage URL or raw HTML, with SSRF protection.

Extracts the og:video Open Graph meta tag value from a public web page URL or raw HTML, with SSRF protection.

Extracts option text from a public web page or provided HTML, returning structured option values for agent use

Extracts all paragraph and body text (q-text) from a public web page URL or raw HTML, SSRF-safe, for $0.008 USDC per call.

Extracts all link[rel=alternate] href values from a public webpage or raw HTML, with SSRF protection.

Extracts link rel=amphtml href values from a given public URL or raw HTML document, returning the AMP version URLs found on the page.

Extracts all link[rel=stylesheet] href values from a public URL or raw HTML, in an SSRF-safe manner

Extracts all script tag src attribute values from a public web page or raw HTML, with SSRF protection.

Validates whether a given string is a mod-97-valid UAE IBAN of exactly 23 characters

Extracts track src attribute values from a public web page or provided HTML content in an SSRF-safe manner

Extracts the twitter:image meta tag value from a public web page URL or raw HTML, with SSRF protection.

Extracts video src attribute values from a public webpage or raw HTML, with SSRF protection.

Returns a structured RDAP record for a given public hostname, including registration and registrar details.

Extracts up to 20 EAN-13 barcode digit strings from a provided text input using regex matching.

Extracts up to 20 email addresses from a given text string using regex matching, billed per call at $0.008 USDC.

Extracts all 0x-prefixed 20-byte hex Ethereum addresses from a text string, returning up to 20 matches.

Extracts all hashtags from a given text string using regex, returning up to 20 matches.

Extracts up to 20 IBAN-shaped tokens from a given text string using regex matching, billed per call.

Extracts all IPv4 addresses from a given text string using regex, returning up to 20 matches.

Extracts up to 20 ISBN-13 digit strings from a given text block using regex matching, returning all matches found.

Extracts all markdown hyperlinks (up to 20) from a given text string using regex, returning matched link text and URLs.

Extracts all ORCID iDs from a text string using regex, returning up to 20 matches

Extracts caret (^) and tilde (~) semantic versioning range expressions from arbitrary text, returning up to 20 matches.

Extracts all ULIDs (Universally Unique Lexicographically Sortable Identifiers) from a given text string, returning up to 20 matches.

Performs reverse DNS lookup to retrieve PTR hostnames for a given public IPv4 or IPv6 address

Converts input text into a dot-separated slug (using '.' as delimiter), capped at 160 characters, while preserving Unicode letters.

Converts arbitrary text into a dot-separated slug capped at 24 characters, preserving Unicode letters

Converts text into a dot-separated slug capped at 40 characters, preserving Unicode letters

Converts arbitrary text into a dot-separated slug (max 80 characters) that preserves Unicode letters

Converts arbitrary text into a URL-safe, hyphen-delimited slug, ASCII-folded and capped at 120 characters.

Converts arbitrary text into a hyphen-separated slug, preserving Unicode letters and capping output at 160 characters.

Converts input text into a URL slug using '+' as the separator, capped at 120 characters, preserving Unicode letters.

Converts text into a URL-friendly slug using '+' as separator, capped at 24 characters, preserving Unicode letters

Computes a BLAKE2b-512 cryptographic hash of Latin-1 encoded text and returns the digest encoded as Base32.

Converts arbitrary text into a URL-safe slug using underscores as separators, ASCII-folded and capped at 24 characters.

Computes a BLAKE2b-512 cryptographic hash of UTF-16LE-encoded text and returns the digest encoded as Base32

Converts arbitrary text into a URL-safe slug using underscores as separators, ASCII-folded and capped at 80 characters.

Retrieves SPF and DMARC DNS policy records for a given public hostname without sending any email

Validates whether a given string is a mod-97-valid German (DE) IBAN of exactly 22 characters

Computes a keyed or unkeyed BLAKE2b-512 cryptographic hash of text encoded as UTF-16LE bytes, returning the digest as a lowercase hex string.

Checks whether a host's port-443 TLS certificate remains valid for at least 30 days and returns an ok_check bit indicating pass/fail.

Checks whether the TLS certificate SAN or CN for a given URL's port-443 connection matches the requested hostname

Checks and returns whether the negotiated TLS protocol on port 443 is TLS 1.2 or TLS 1.3 for a given host or URL.

Checks whether any Subject Alternative Name (SAN) on port 443 of a given host or URL is a wildcard DNS name

Rewrites a JSON string using the JCS (RFC 8785) canonicalization transform, producing a deterministically ordered, whitespace-normalized JSON output.

Follows up to 5 redirects on a given URL (SSRF-safe, HEAD/GET only) and returns the final resolved URL, HTTP status, and the full redirect chain.

Splits a URL into its constituent parts (scheme, host, path, query, and hash) without making any network requests

Validates whether a given string is a syntactically correct 6-field cron expression

Generates a deterministic UUID v5 using the URL namespace for a given input text string.

Extracts text at an XPath address from a public webpage URL or raw HTML input, SSRF-safe.

Extracts the text content of all <aside> elements from a public URL or provided HTML using XPath, returning deduplicated sidebar/aside text.

Extracts text or code from a public web page or raw HTML using XPath, with SSRF protection, for $0.01 USDC per call.

Extracts text content from //dt (definition term) elements on a public web page or provided HTML using XPath, with SSRF protection.

Extracts text content from all <figcaption> elements on a public webpage or raw HTML using XPath, returning the scraped caption texts.

Computes an MD5 hash of the provided text and returns it encoded as a base64url string, with no external network calls or LLM involvement.

Extracts all h3 heading text from a public web page or raw HTML using XPath, with SSRF protection.

Extracts the text content of all <h5> elements from a public web page URL or raw HTML using XPath, with SSRF protection.

Extracts the name attributes of HTML input elements (via //input/@name XPath) from a given public URL or raw HTML string, in an SSRF-safe manner.

Extracts hreflang attribute values from all <link> elements on a public webpage or raw HTML string using an XPath selector.

Validates whether a card number passes the Luhn algorithm and matches the Mastercard card-number format

Extracts the Open Graph image URL (og:image meta property) from a public webpage or raw HTML using XPath, with SSRF protection.

Extracts the Open Graph title (og:title) meta property from a public URL or raw HTML using an XPath selector, with SSRF protection.

Fetches a public web page by URL or accepts raw HTML and returns an XPath-extracted text summary of its content, with SSRF protection.

Computes a BLAKE2s-256 cryptographic digest of latin1-encoded bytes and returns the result as a lowercase hex string.

Validates whether a card number passes the Luhn algorithm and matches the JCB card network format

Computes an HMAC-SHA224 digest of input text using a caller-supplied key and returns it encoded as base64url.

Validates that a card number passes the Luhn algorithm and matches American Express card format, without storing any data.

Computes a BLAKE2b-512 cryptographic digest of Latin-1-encoded text bytes and returns the result as a lowercase hex string.

Computes a SHA-1 hash of a Latin-1 encoded text string and returns it as a Base64-encoded digest

Computes a BLAKE2s-256 digest of raw hex-encoded bytes and returns the result encoded as base64url

Computes a SHA-256 hash of a Latin-1 encoded string and returns the digest encoded as base64url.

Converts input text to Train-Case format (capitalized words joined by hyphens) without network calls or LLM usage

Computes a SHA3-256 cryptographic hash of Latin1-encoded text and returns the digest encoded as base64url.

Validates whether a given string is a properly formatted UUID version 5 identifier

Validates whether a given string is a mod-97-valid Dominican Republic IBAN of exactly 28 characters

Computes the SHA-256 hash of a text string treated as Latin1-encoded bytes and returns the digest encoded in Base32 format.

Converts input text to uppercase without any network calls or LLM involvement, for a fixed $0.002 USDC fee.

Computes an HMAC-SHA3-384 message authentication code for a given text and key, returning the result encoded as base64

Decodes a Base32-encoded string into its original text, running entirely offline with no LLM or network calls.

Validates whether a given IBAN is a mod-97-valid Costa Rican (CR) IBAN of exactly 22 characters

Computes a CRC32C checksum of input text and returns it as a decimal integer string

Fetches the DNS TXT record at mail._domainkey.{hostname} to retrieve the DKIM public key for the 'mail' selector

Extracts link[rel=search] href values from a public webpage URL or raw HTML in an SSRF-safe manner

Converts input text to snake_case format using a deterministic, offline transform with no LLM or network calls

Validates whether a given IBAN string is a mod-97-valid Danish (DK) IBAN of exactly 18 characters

Extracts up to 20 IPv6 addresses from a text string using regex matching, returning all found addresses.

Extracts definition description (dd) elements from a public web page or raw HTML using CSS selectors, with SSRF protection.

Extracts all BIC/SWIFT codes from a text string using regex, returning up to 20 matches, with no external network calls.

Validates whether a given string is a correctly structured Bahrain IBAN — exactly 22 characters, starting with 'BH', passing the ISO 7064 mod-97 check.

Converts input text to kebab-case format (lowercase words joined by hyphens) without using a network or LLM.

Decodes a Base32Hex-encoded string into its original plaintext representation, entirely offline with no network or LLM calls.

Validates whether a 13-digit EAN barcode passes the Luhn (check digit) algorithm

Validates whether a given IBAN is a mod-97-valid Lebanese (LB) IBAN of exactly 28 characters

Validates whether a given string is a mod-97-compliant Slovak (SK) IBAN of exactly 24 characters

Validates whether a given string is a structurally correct Tunisian (TN) IBAN: 24 characters long and passing the mod-97 checksum.

Validates whether a given string is a valid MIME type (type/subtype media type format)

Validates whether a phone number conforms to North American Numbering Plan (NANP) +1 rules

Validates whether a Croatian (HR) VAT number passes the checksum algorithm, without performing a live registry lookup.

Validates an Italian VAT number (Partita IVA) by verifying its checksum algorithm, without performing a live registry lookup.

Validates the checksum of a Portuguese (PT) VAT number without performing a live registry lookup

Computes the Fletcher-16 checksum of a given text string and returns the result as a decimal integer, with no network calls or LLM involved.

Converts a hexadecimal color code to its HSL (Hue, Saturation, Lightness) representation

Decodes a Crockford Base32-encoded string into its original representation, fully offline with no LLM or network calls.

Computes the next 24 scheduled UTC fire times for a given 6-field cron expression, starting from a specified datetime.

Extracts blank-target anchor hrefs (a[target='_blank']) from a public webpage URL or raw HTML, with SSRF protection.

Computes a SHA1 hash of raw hex-encoded bytes and returns the digest encoded as Base32

Computes a SHA-256 hash of a Latin1-encoded string and returns the digest encoded as Base64.

Computes a SHA3-224 cryptographic hash of Latin1-encoded text and returns the digest encoded as Base64.

Encodes a text string using base64url encoding, with no network calls or LLM involvement.

Decodes a base64-encoded string into its original plaintext representation, with no network calls or LLM involved.

Encodes arbitrary text using the Base58Check P2SH (Pay-to-Script-Hash) encoding scheme, offline with no network or LLM calls.

Encodes arbitrary text input into Base58 format, with no network calls or LLM processing.

Computes a SHA-512/256 cryptographic hash of the provided text and returns it encoded as a base64url string.

Decodes a Base45-encoded string back to its original plaintext representation, with no network or LLM calls involved.

Resolves SRV records at _submission._tcp.{hostname} for a given registrable domain, returning mail submission server details.

Fetches the TXT record at the DKIM public key DNS name (dkim._domainkey.{hostname}) for a given hostname

Retrieves the DKIM public key TXT record at the k1._domainkey subdomain for a given hostname

Decodes a base36-encoded string into its original value, running entirely locally with no network or LLM involvement.

Computes an HMAC using SHA3-384 with a caller-supplied key over input text and returns the result as a lowercase hex string

Computes a SHA-512/256 hash of Latin1-encoded text and returns it as a Base32-encoded digest string.

Converts a JSON array of objects into CSV format, with optional custom delimiter support.

Decodes a JWT token into its header and payload components without verifying the signature

Counts all character-level 3-grams (trigrams) in the provided text and returns their frequencies

Counts all word bigrams (2-grams) in a given text and returns their frequencies, with no network or LLM dependencies.

Normalizes Unicode text using NFKC (Compatibility Decomposition followed by Canonical Composition) with no network or LLM involvement

Rewrites input text using camelCase formatting, with no network or LLM dependencies, for a flat $0.005 USDC fee.

Extracts the `lang` attribute value from the `<html>` element of a given public webpage URL or raw HTML string, in an SSRF-safe manner.

Extracts structured JSON-LD @type Recipe data from a public webpage URL or raw HTML content

Extracts the og:locale Open Graph meta tag value from a public webpage URL or raw HTML content, in an SSRF-safe manner.

Extracts link[rel=author] href values from a public webpage URL or raw HTML, in an SSRF-safe manner.

Extracts link[rel=manifest] href values from a public webpage URL or raw HTML in an SSRF-safe manner

Extracts all name attribute values from HTML select elements on a given public web page or HTML snippet

Decodes a punycode-encoded string (e.g. internationalized domain name ACE form) into its Unicode representation, with no network calls or LLM involvement.

Redacts (masks) all email addresses found in a given text string, returning the sanitized text without storing any data.

Redacts bearer tokens from text, replacing them with masked placeholders, without storing any data.

Decodes ASCII85-encoded text into its original plaintext representation, with no network calls or LLM involvement.

Extracts text content from all <td> table cell elements on a public webpage or raw HTML using XPath, returning the collected text values.

Extracts arXiv paper identifiers from free text using regex, returning up to 20 matches per call.

Retrieves the DKIM TXT record published at the sparkpost._domainkey subdomain of a given hostname

Converts arbitrary text into a URL-friendly slug using hyphens as separators, capped at 24 characters, preserving Unicode letters

Converts arbitrary text into a URL-friendly slug using hyphens as separators, ASCII-folded and capped at 80 characters.

Converts arbitrary text into a hyphen-separated URL slug capped at 80 characters, preserving Unicode letters

Retrieves and summarizes the TLS certificate for a given host or URL on TCP port 443, returning authorization and expiry status

Estimates token count for text using heuristic methods (chars/4, word count, or regex) without invoking any LLM or tokenizer

Validates whether a given string is a mod-97-valid Swiss IBAN of exactly 21 characters

Computes an HMAC using the BLAKE2s256 algorithm on a given text with a caller-supplied key and returns the result encoded as base64url.

Computes an HMAC-MD5 authentication code over supplied text using a caller-provided secret key, returning the result as a lowercase hexadecimal string.

Computes an HMAC-RIPEMD160 digest of input text using a caller-supplied key and returns it as a base64-encoded string.

Computes an HMAC-SHA3-384 message authentication code of input text using a caller-supplied key, returning the result encoded as base64url.

Extracts the twitter:player meta tag value from a public web page URL or raw HTML, in an SSRF-safe manner.

Encodes input text into its UTF-16 hexadecimal representation, running locally with no network or LLM calls.

Rewrites input text using capitalize case (title-like capitalization of words) with no network or LLM dependency

Computes an HMAC-SHA384 signature of input text using a caller-supplied key and returns it encoded as Base64.

Extracts all anchor tag rel attribute values from a public URL or raw HTML string, with SSRF protection.

Computes a SHA-256 hash of text encoded as UTF-16LE bytes, returned as a Base64 string

Computes a SHA-512/224 cryptographic hash of Latin-1-encoded text and returns the digest as a Base64 string.

Looks up the DKIM TXT record at the s1._domainkey selector for a given hostname via DNS

Extracts favicon and apple-touch icon metadata from a public webpage URL or raw HTML, with SSRF protection.

Validates whether a given string is a properly formatted UUID version 7 identifier

Extracts all SHA-256 hex digests found in a text string, returning up to 20 matches

Computes an HMAC-SHA384 message authentication code for a given text using a caller-supplied key, returning the result as a lowercase hex string.

Computes an HMAC-SHA512 digest of a given text using a caller-supplied key and returns the result encoded as base64url.

Resolves _matrix-fed._tcp.{hostname} SRV DNS records for Matrix federation server discovery, given a registrable domain name.

Resolves SRV records at _sips._tcp.{hostname} for SIP over TLS by accepting a registrable domain name

Extracts the theme-color meta tag value from a public web page URL or raw HTML, with SSRF protection.

Encodes input text using HTML numeric character encoding (&#NNN; notation) without any network calls or LLM processing.

Extracts colon-separated MAC addresses from text using regex, returning up to 20 matches

Decodes and returns the payload of a JWT token without performing any signature verification

Computes the Flesch reading-ease score for a given text, indicating how easy the text is to read.

Extracts anchor href values from navigation elements inside a public webpage or raw HTML input, returning links found in the page's nav sections.

Extracts the `name` attribute values of all `<textarea>` elements from a given public webpage URL or raw HTML string.

Extracts the text content of H1 heading elements from a public webpage URL or raw HTML using the XPath expression //h1

Extracts favicon/icon link elements (excluding apple-touch and mask icons) from a public webpage URL or raw HTML

Converts a JSON object or array to formatted Markdown, rendering arrays of objects as Markdown tables

Extracts the canonical link href from a public webpage by URL or raw HTML, with SSRF protection

Computes a SHA-512 hash of raw bytes supplied as a hex string and returns the digest encoded as base64url

Retrieves the DKIM TXT record at k3._domainkey.{hostname} for email authentication verification

Computes a BLAKE2b-512 keyed or unkeyed digest of a UTF-16LE-encoded text string and returns it as a base64url-encoded string.

Validates whether a given string is a mod-97-valid LC-format IBAN of exactly 32 characters

Computes a SHAKE128 (extendable-output function) digest of input text and returns the result encoded as a hexadecimal string.

Returns the NS (name server) hostnames for a given public domain name via DNS lookup

Validates the checksum of a Swedish VAT number (SE format) without performing any live registry lookup.

Converts arbitrary text into a URL slug using '+' as the separator, ASCII-folded and capped at 160 characters

Normalizes curly/smart quotes in text to straight ASCII quotes, running entirely locally with no network or LLM calls.

Extracts the article:modified_time Open Graph metadata value from a public web page URL or raw HTML

Converts arbitrary text into a URL-safe slug using hyphens, ASCII-folded, capped at 24 characters

Encodes a text string using Punycode, converting Unicode characters to ASCII-compatible encoding (ACE) for use in domain names and internationalized text.

Validates whether a given string is a mod-97-compliant Latvian IBAN (LV country code, exactly 21 characters long)

Validates whether a Slovak (SK) VAT number passes the checksum algorithm, without performing any live registry lookup.

Computes the Adler-32 checksum of a given text string and returns the result as a decimal integer, with no network calls or LLM involved.

Computes the Adler-32 checksum of a given text string and returns the result as a hexadecimal string, with no network calls or LLM involvement.

Computes a SHA-512 hash of raw hex-encoded bytes and returns the digest encoded as a Base32 string.

Computes the CRC16 checksum of a given text string and returns the result as a hexadecimal value.

Computes the CRC32 checksum of a given text string and returns it as a decimal integer, with no network calls or LLM involvement.

Validates the checksum of a Romanian VAT (CIF/CUI) number without performing a live registry lookup

Computes a SHA3-256 hash of text interpreted as Latin-1 bytes and returns the result as a lowercase hexadecimal string

Computes a Fletcher-32 checksum of the provided text and returns it as a hexadecimal string, with no network calls or LLM involvement.

Validates whether a Polish VAT (NIP) number has a correct checksum, without performing any registry or database lookup.

Validates the checksum of a Spanish VAT (NIF/CIF) number without performing a live registry lookup

Validates the checksum of a German VAT (Umsatzsteuer-Identifikationsnummer) number without performing a live registry lookup.

Given a 5-field cron expression and an optional start datetime, returns the next 8 scheduled UTC execution times

Given a 6-field cron expression and an optional start datetime, returns the next 3 UTC scheduled fire times

Retrieves SOA (Start of Authority) DNS record fields for a given hostname, including ns, hostmaster, serial, refresh, retry, expire, and minimum values.

Extracts anchor hreflang attribute values (a[hreflang]) from a public URL or raw HTML using CSS selector parsing, with SSRF protection.