General Utilities x402 offerings

Translates a cron expression into a human-readable description and computes its next scheduled run times.

Generates one or more cryptographically random UUID v4 identifiers.

Full deep-value investment thesis for one crypto asset from EarlyThunder Research: composite score, tier, valuation reasoning and cited thesis text. Pass slug from the scores endpoint.

Quant altcoin scorecard from EarlyThunder: 251 tokens with price, market cap, ATH distance, TVL, circulating supply share, score, prior score and verdict, plus the scoring methodology.

Curated crypto catalyst and deadline calendar from EarlyThunder: dated regulatory and protocol deadlines with urgency ratings, status, notes and sources. Updated by an active research pipeline.

Compute the date of Easter Sunday for a given year using the Anonymous Gregorian algorithm (Meeus/Jones/Butcher). Also returns Good Friday, Ash Wednesday, Palm Sunday, Pentecost, and the day-of-year for Easter.

Stores a message and returns a UUID handle for later retrieval via a POST request.

Identify which carrier issued a tracking number using a deterministic, versioned signature set - prefixes, lengths, carrier check digits and UPU S10 structure - returning the carrier, how distinctive the match is, every ranked candidate with typed evidence, and the parsed S10 details. No upstream call and no carrier account required. Use when: Which carrier is this tracking number from?

Latest available United Kingdom gdp growth plus a comparable annual history from the World Bank World Development Indicators API, with source, lag and revision caveats. Purpose: Give an autonomous agent a normalized, directly sourced United Kingdom gdp growth series without forcing it to understand World Bank indicator codes or response shapes. 24-hour freshness target; missing evidence is reported explicitly rather than invented.

Resolve a free-text topic, compound or material to a subject id.

AI-powered classifier that detects and labels individual elements in images—objects, UI components, and visual features—for rapid visual analysis.

Run a chat completion against an open-weight 20B-class model — plain prompt in, text out, with automatic failover across independent inference backends so a single call still answers when any one pro…

Public holidays for a country and year (ISO-2 code) — what a scheduling agent needs before proposing a date

Email verification: is one address deliverable, disposable or a role account? Check ONE email address before you send to it: pass ?email=name@domain.com and get a verdict (deliverable-domain, role-account, disposable, bad-shape or no-mail-domain) from its shape, its MX records read live over DNS, 25 known disposable-mail domains and 27 role-account names like info, support and admin. The mailbox itself is not probed, and the answer says so. Paid in USDC on Base.

Validate an email address: RFC 5322 format check, domain MX record lookup, disposable provider detection, and role address detection (e.g. info@, admin@). Returns is_valid boolean and granular checks object. Use before storing or sending to email addresses to prevent bounces.

Email address domain part: pure parsing with no network call. Domain, TLD and subdomain depth. $0.01 per call.

Email address gravatar url: pure parsing with no network call. SHA-256 Gravatar hash and avatar URL. $0.01 per call.

Email address local part: pure parsing with no network call. Local part with name/role/digit heuristics. $0.01 per call.

Email address mailto link: pure parsing with no network call. mailto: URL and HTML anchor. $0.01 per call.

Email address obfuscate: pure parsing with no network call. Masked and [at]/[dot] forms for safe display. $0.01 per call.

Email address plus tag: pure parsing with no network call. Splits the +tag from the base address. $0.01 per call.

Email address rfc5322 strict: pure parsing with no network call. Strict RFC 5322 syntax validation with reasons. $0.01 per call.

Validate an email address: syntax, MX resolution, disposable-domain check.

Fill a PDF form from structured data such as JSON or key-value answers. Also: fill a PDF form from JSON; populate form fields from data; complete a PDF application from known values; write answers into a form. Price scales with page count; this 402 carries the exact amount for the PDF sent.