221 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
falcon.sol: Use this before paying an unfamiliar x402 seller. Send a seller host from the free index at /sellers.json; get a verdict (ok, caution, do_not_pay, unknown) built from live unpaid probes of up to 5 of its list...
Verify a Nostr event: recompute NIP-01 id and check the BIP340 schnorr signature. POST the event JSON.
Link triage for up to 25 URLs in one call: HTTP status, redirect chain (up to 4 hops), page title, and a verdict per URL (live, redirected, redirected_cross_domain, moved_to_homepage, dead, blocked, server_error, unreach...
Verify that a USDC payment (payer -> payee, exact amount) landed on Base mainnet recently; returns verdict + matching transfer.
Token compression for LLMs
DNS TXT record lookup: all TXT records for a domain (SPF, site-verification tokens for Google, Microsoft, Apple, Facebook, Stripe, Atlassian and others), with TTL. Reveals which SaaS services a company has verified. $0.0...
Independently confirms whether a Nano (XNO) block actually landed on-chain. Given a 64-hex block hash, returns confirmed (bool), subtype, account, amount (raw + XNO), height, successor, and whether a live public node rep...
Change watch for meta tags verification: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that changed wit...
All verification meta tags of a page as a name → content map, with a count and a list of expected tags that are missing (for Open Graph/Twitter). One group per call for social-preview and SEO checks. $0.01 per page.
Domain-level contact preflight with MX provider, SPF, DMARC and structured risk signals. Does not claim mailbox existence.
Which SaaS vendors a company uses, from DNS TXT verification tokens: Google Workspace, Microsoft 365, Apple, Facebook, Atlassian, Stripe, DocuSign, Adobe, Zoom, Slack, HubSpot, Salesforce, Shopify, OpenAI, Anthropic, Tai...
Catch-all mailbox hint (no SMTP probing): estimates whether a domain accepts mail to any address, from provider defaults (Google Workspace/Microsoft 365 usually reject unknown users; many small hosts and Cloudflare Email...
Detect language, formality and tone of a text with confidence scores. Deterministic heuristics + compact wordlists. Returns iso_639-1 + register. — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no...
Fast European HTTP status and TLS preview
Live block height, gas price and fee estimates (transfer, ERC-20 transfer, contract call) for Base or Arc. On Arc fees are quoted directly in USDC.
Verify the current stable npm or PyPI package release and check a version/date claim against canonical registry metadata.
Use when an agent is about to give a user links or citations: send up to 10 URLs, and get back the status, redirect chain, final URL, title and hash of each, so a dead, moved or blocked link is caught first. A URL whose...
Capture point-in-time URL facts, response headers, a text excerpt, and a SHA-256 content hash for research and verification.
Change watch for has gitlab domain verification: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that...
Does this page really contain this quote? Fetches the URL now; returns found_exact/found_near/partial/not_found/page_unavailable, similarity, context and page sha256. Catches hallucinated citations.
Is this URL alive? Real fetch with redirect chain, TLS, latency and body hash, returned as signed evidence.
Ownership verification with a signed receipt. The receipt is the product: the same answer is available for free at /api/verify-ownership.
Poll one order status; when the SMS has arrived the response carries sms_code and sms_text. Poll until status is received/completed/expired. Automated clients accept the Agent Access Addendum: https://voipstore.xyz/terms...
Signs a timestamped receipt for a file's sha256, proving it existed unchanged then. US$0.002 per call; POST the hash.