The apple-itunes-app meta tag of a page: whether it is present and its content (name= or property= form), plus length and a note when the value looks wrong (empty, too long, or a placeholder). One tag, one answer, for SEO and social-preview checks. $0.01 per page.

Sunrise, sunset, solar noon, day length, civil/nautical/astronomical twilight and golden hour for Belgrade today (and tomorrow), computed for the city's coordinates and local timezone. Photography, outdoor scheduling and prayer-time helpers for Belgrade. $0.01 per call.

AS1273 (Vodafone): the autonomous system's name, country and RIR from Team Cymru, plus its announced IPv4/IPv6 prefix counts and a sample of prefixes from RIPEstat. Know what address space Vodafone announces before allow-listing or attributing traffic. $0.01 per call.

Preflight an item into a fresh isolated commerce session without touching a customer cart. Sessions are ephemeral and payment/order creation is never attempted.

Report public delivery options for an isolated ephemeral cart and destination when the provider exposes them. No customer cart, payment or order is touched.

Buy a verified listing for YOUR x402 endpoint, remote MCP server or A2A agent — paid by the agent in USDC, no humans. We probe it live (402 shape / MCP handshake / agent card); if it passes, it is listed for 30 days in the Toll402 catalog, llms.txt, agent card and landing, and ranked higher in /v1/find and the /v1/do router. basic $1 · featured $5 (top of results). Charged only when verification passes. Free quote: POST /v1/listings/quote.

Resolves a postal code in one country (ISO 2-letter code, e.g. US, DE, TR, GB) to its place names, state or province, and latitude and longitude, from Zippopotam.us. Covers only the countries that service publishes. No time zone or administrative municipality is returned, since no free source for them was used.

CORS check for a public HTTPS endpoint: three GET requests with a made-up origin, the null origin and no origin, reporting whether the server echoes the origin, allows null, returns a wildcard, and allows credentials. Only reads response headers of GET requests; it does not test preflight, methods or authentication.

Liveness and latency of one public HTTPS endpoint, measured from this server: three GET requests, returning each HTTP status and the time to the response headers, the median and the worst time, and an UP/DEGRADED/DOWN level. One location only: it does not test other regions, and it does not measure the TLS handshake on its own.

European Central Bank euro reference rates (published once per working day around 16:00 CET): the rate for one currency against the euro, and an optional conversion of an amount between two of the listed currencies. Rates are the ECB's daily reference, not a live market quote; the list has about 30 currencies.

Write an on-chain attestation (Ethereum Attestation Service on Base) that binds a call you paid for to the bytes you received: the tool slug, sha256 of the JSON response, the settlement chain and transaction, the payer, the time served and the price, signed by this server's wallet. Give it the settlement transaction from the PAYMENT-RESPONSE (or Payment-Receipt) header of any settled call; the attestation UID and its public page on base.easscan.org come back.

Call before pinning or installing a specific package version in npm, PyPI or crates.io. Returns whether that exact version exists in the official registry, its publication timestamp, whether it is deprecated or yanked, its published artifact hashes, and whether an expected SRI/hex digest matches. Compares registry metadata only and never returns a safety verdict.

Change watch for is port 1080 open: runs the check, compares it with the result from your previous call for the same host (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Does a website use LogRocket? Fetches the page (homepage for a bare domain) and matches LogRocket's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (monitoring). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

Does a website use Sumo? Fetches the page (homepage for a bare domain) and matches Sumo's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (popups). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

Bulk does site use hcaptcha: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.

Does a website use OneTrust? Fetches the page (homepage for a bare domain) and matches OneTrust's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (consent). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

Does a website use Make (Integromat)? Fetches the page (homepage for a bare domain) and matches Make (Integromat)'s fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (automation). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

Does a website use TrustArc? Fetches the page (homepage for a bare domain) and matches TrustArc's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (consent). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

Bulk does site use jsdelivr: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.