Help me set up Zero — a free tool that lets you find and use extra services you don't have built in (image/video generation, search live social media, or hosting a free webpage). …To setup manually, read Installation Guides
Parses and validates a raw DMARC DNS TXT record string, extracting all policy directives and reporting whether the record is valid.
Generates a narrated MP4 video by composing an AI-generated still image with AI voiceover speech from a text prompt and narration script
Returns European Central Bank reference exchange rates for one or more currency pairs against a chosen base currency, for today or up to 31 days in the past.
Analyzes a URL to report its login surface metrics, including auth link count, password form count, and security headers present.
Searches and retrieves recent cryptocurrency news headlines filtered by topic, timespan, and relevance using the GDELT Project as the data provider.
Computes the break-even unit quantity given a fixed cost and contribution margin per unit
Extracts text from scanned or machine-printed PDFs using Tesseract 5 + Poppler, returning recognized text with confidence score and cryptographic hashes for verifiable delivery
Audits a list of requested tool permissions against an allowed set, returning which are permitted or denied and whether least-privilege principles are satisfied.
Checks whether a given DKIM selector exists and has a valid shape in DNS for a specified domain
Replaces the background of an uploaded image with a studio fill color, returning a new image URL via a pay-per-result API using USDC on Base or Solana.
Extracts email addresses, phone numbers, social media links, and web manifest URL from a given website URL
Audits a set of OAuth scopes, identifying missing required scopes, excess scopes, and whether the set satisfies least-privilege principles
Computes the Kelly criterion fraction for a binary outcome bet given a true probability and a market price
Converts a U.S. street address into geographic coordinates (latitude/longitude) using the U.S. Census Bureau Geocoder, via a pay-per-call API requiring no signup.
Detects the most likely delimiter character (comma, tab, semicolon, pipe, etc.) used in a CSV text sample by scoring each candidate.
Extracts the 4-byte function selector from raw EVM calldata and validates its basic structure
Scans arbitrary text for exposed secrets (API keys, tokens, credentials) and returns a risk rating, finding count, and finding types.
Normalizes and canonicalizes a raw trading ticker string into its constituent parts and standard form (e.g. 'ETHUSDC' → 'ETH/USDC')
Infers the schema (field names, types, nullability) from an array of input records
Calculates the bookmaker's overround (vig) and returns fair no-vig implied probabilities from a pair of decimal odds.
Computes the structural difference between two JSON objects, returning added, changed, and removed fields with before/after values.
Deduplicates a list of EVM addresses in-memory and returns the unique set with a count of removed duplicates
Deterministically assigns a subject to one of N weighted variants using a seed, returning the selected variant and its index with cryptographic evidence of no data retention.
Compares two OpenAPI specifications and returns whether the new version introduces breaking changes, listing removed paths and methods.
Parses a DNS SPF record string and checks whether the number of DNS-lookup-triggering mechanisms stays within a configurable budget limit
Extracts structured pricing signals from a given URL, returning tier types, form counts, and pricing model indicators like free trial, enterprise, and usage-based.
Searches Wikidata's open knowledge graph for structured entity records matching a text query, returning entity IDs, labels, descriptions, and source URLs.
Extracts plain text from a base64-encoded PDF file, returning the full text content with metadata, for $0.003 USDC per call via x402.
Fetches a URL and extracts structured content including title, headings, description, and text excerpt from the page
Extracts text from a base64-encoded PNG, JPEG, or WebP image using Tesseract 5, with no image stored or forwarded to third parties.
Extracts all HTML forms from a given webpage URL, returning structured data about each form's inputs, methods, and actions
Scans a text string for XSS (cross-site scripting) attack signals and returns a risk level and signal count
Computes the population standard deviation (and mean, mode, count) for a supplied list of up to 10,000 numeric values, paid per-result in USDC via x402.
Searches recent news articles via the GDELT Project, returning headlines and URLs matching a query within a configurable time window
Computes the Compound Annual Growth Rate (CAGR) given a start value, end value, and number of years
Converts decimal odds to American, fractional, and implied probability formats in a single API call
Compares the query parameters of two URLs and returns which parameters were added, changed, or removed between them.
Computes CVaR (Conditional Value at Risk) and VaR for a given return series at a specified tail probability
Removes specified tracking parameters (e.g. UTM, gclid) from a URL, returning a clean URL without retaining input data
Generates a plain-text caption describing the visual content of a base64-encoded image, paid per-result via USDC
Scans arbitrary text for prompt injection attack signals and returns a risk score, severity level, and specific detected signals.
Transcribes a base64-encoded WAV audio clip (up to 2 MiB / 60 seconds) to text using Whisper, paid per-call in USDC via x402 with no signup required.
Validates whether a set of DNS MX records indicate that a domain is ready and able to receive email.
Colorizes a black-and-white or desaturated photo by accepting a base64-encoded image and returning a URL to the colorized result, billed at $0.01 USDC per call via x402.
Computes the Black-Scholes d1 and d2 intermediate values for an option given spot price, strike, volatility, time to expiry, and risk-free rate.
Parses a raw HTTP Set-Cookie header string and returns structured cookie attributes (name, value length, path, flags, SameSite) without retaining input data.
Computes a lightweight Sharpe ratio from an array of returns, returning mean, standard deviation, and annualized risk-adjusted performance score.
Audits a set of JWT claims object to check for expiry, standard claim presence, shape validity, and missing fields
Audits a URL for SSRF (Server-Side Request Forgery) risk by checking if its hostname resolves to private, internal, or cloud metadata IP ranges
Validates the structural shape and byte count of EVM calldata without retaining or executing it
Performs a reproducible weighted random selection of N items from a list using a deterministic seed, returning verifiable results with no data retention.
Computes Black-Scholes options Greeks (delta, gamma, theta, vega) for a given option using spot price, strike, volatility, time to expiry, and risk-free rate
Resizes and re-encodes a base64-encoded image to a specified format (WebP, PNG, JPEG) and maximum dimension, returning a hosted URL and SHA256 hash, paid per-call via USDC on Base or Solana.
Validates EVM transaction envelope fields for a given transaction type, returning required fields, missing fields, and pass/fail status.
Validates a JSON value against a bounded JSON Schema-like contract (type, required, properties, enum) and returns validation results with errors
Computes the Kelly Criterion fraction — the optimal bet size as a fraction of bankroll — given a win probability and net odds multiplier.
Deterministically selects one candidate from a list using a seed string, producing a verifiable, reproducible tie-breaking decision with no data retention.
Renames columns in a CSV string according to a provided old-to-new column name mapping, returning the transformed CSV with updated headers.
Converts text into high-definition audio (WAV) using AI voice synthesis with configurable voice, emotion, pitch, speed, and language options, billed per result in USDC via x402.
Converts a text string into a specified naming case format (snake_case, camelCase, PascalCase, kebab-case, etc.)
Validates an email address by checking syntax, DNS A records, MX records, and deliverability likelihood, returning normalized form and verification details.
Removes null-valued keys from a JSON object and returns the pruned object along with the list of removed keys
Compares two sets of HTTP response headers and returns a structured diff showing added, removed, changed, and unchanged headers with security-sensitive changes highlighted.
Aggregates a company's contact information from page contacts, forms, social profiles, registrar records, and security channels into a single structured pack.
Extracts email addresses, phone numbers, and social media profile links from a given web page URL for outreach, routing, and support use cases.
Measures how well a set of implemented governance controls covers a required set, returning deterministic JSON gap analysis.
Validates and describes a five-field cron expression, returning a human-readable schedule summary and upcoming run timestamps.
Audits a Content-Security-Policy header string for missing defaults and unsafe script directives, returning structured JSON findings.
Converts raw CSV data into structured JSON rows suitable for downstream AI agents, prompts, and ETL pipelines.
Classifies a list of field names to identify which likely contain sensitive data, without inspecting actual values, returning deterministic machine-readable JSON.
Checks whether an architecture decision record (ADR) contains the required accountable essentials, returning a machine-readable JSON assessment.
Runs a composite security and trust assessment on a domain, combining TLS, HTTP headers, security.txt, RDAP, DNS, and uptime signals into a single report.
Identifies duplicate record groups in a supplied dataset using canonical fingerprints, returning machine-readable JSON cluster results without exposing raw record values.
Validates an email address and its domain-level DNS delivery records (MX, SPF, DKIM) to confirm deliverability before outreach, signup, or routing.
Calculate remaining error budget and burn rate from total requests, failed requests, and an SLO target percentage
Discovers RSS, Atom, and JSON feeds for a given URL so agents can subscribe to content updates instead of scraping pages repeatedly.
Extracts HTML forms, their HTTP methods, action URLs, and input fields from a webpage for browser automation and workflow planning.
Calculates gross profit, gross margin percentage, and profitability from cost and price inputs
Fetches and audits the HTTP response headers of a given URL, surfacing security, cache, redirect, and server signals.
Derives a deterministic, namespaced idempotency key from canonical JSON to prevent duplicate operations in autonomous workflows.
Detects likely credentials and private keys in text without revealing their values, returning bounded machine-readable JSON
Resize or convert a single base64-encoded PNG, JPEG, or WebP image to a specified max dimension and output format, returning a durable artifact with a SHA-256 receipt
Generates a one-sentence caption or alt text for a single base64-encoded PNG, JPEG, or WebP image, returning the caption and a SHA-256 receipt for $0.005 USDC.
Extracts machine-printed English text from a base64-encoded PNG, JPEG, or WebP image using local Tesseract OCR, returning the text, confidence score, and a SHA-256 receipt for $0.01 USDC via x402.
Redacts common personally identifiable information (PII) from text, returning a sanitized version as machine-readable JSON
Counts likely personal-data classes in a text input without echoing detected values, returning a machine-readable JSON risk summary.
Screens untrusted text for prompt-injection and tool-coercion signals before an AI agent acts on it, returning a machine-readable JSON safety verdict.
Revalues a dollar amount between two years using U.S. Bureau of Labor Statistics CPI data, priced at $0.002 USDC per call via x402.
Validates a JSON payload against a caller-supplied structural contract and returns path-level validation errors
Validates, normalizes, and pretty-prints a JSON payload, returning structured errors or a formatted result for $0.001 USDC per call.
Look up a Legal Entity Identifier (LEI) via GLEIF to retrieve its status and legal entity name for $0.002 USDC.
Computes Levenshtein edit distance and string similarity score between two input strings for $0.001 USDC per call.
Compares a list of requested OAuth scopes against the minimum required scopes and returns a deterministic JSON audit result for preflight validation in agent workflows.
Detects removed paths and methods between two OpenAPI specifications to identify client-breaking changes before deployment
Extracts Open Graph and Twitter Card metadata fields from a URL to preview how it will render in social feeds and AI agents.
Extracts pricing signals including plans, trial offers, sales CTAs, and conversion routes from a given pricing page URL.
Fetches registrar, registration status, and registration dates for a domain via RDAP for trust, compliance, and domain operations.
Tests a regular expression against input text and returns all matches, capture groups, and match counts.
Generates a deterministic bounded exponential backoff retry delay schedule with a configurable hard delay cap
Scores the presence of five high-value browser security headers in a given set of HTTP response headers, returning a deterministic machine-readable JSON result.