{"protocolVersion":"0.3.0","name":"Attestly","description":"The trust layer for AI agents. Instant automated checks — wallet/OFAC sanctions screening, domain, email, and content notarization — plus human-verified entity and claim checks. Every result is a cryptographically signed (ed25519) attestation. Automated checks are free; human-verified attestations are paid in USDC via x402.","url":"https://attestly.co","preferredTransport":"JSONRPC","version":"0.2.0","provider":{"organization":"Attestly","url":"https://attestly.co"},"documentationUrl":"https://attestly.co/","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"entity-check","name":"Human-verified entity check","description":"A real human confirms whether a business/entity exists and matches the details provided; returns a signed verdict with evidence. Price: 4.00 USDC.","tags":["verification","kyb","entity","trust","x402"],"examples":["Is 'Acme Lending LLC' a registered active business in Arizona?"]},{"id":"claim-check","name":"Human-verified claim check","description":"A real human checks a factual claim or URL against real sources; returns confirmed/refuted/uncertain with evidence. Price: 4.00 USDC.","tags":["verification","fact-check","trust","x402"],"examples":["Verify: 'https://example.com is the official site of Example Corp.'"]},{"id":"wallet-screen","name":"Wallet risk & sanctions screening (instant)","description":"Instantly screen an EVM address against OFAC sanctions + on-chain activity; returns a signed risk verdict. Informational, not compliance advice. Price: Free.","tags":["verification","wallet","sanctions","ofac","risk","x402","instant"],"examples":["Screen 0x1234...abcd on base before I send USDC."]},{"id":"domain-check","name":"Domain & website verification (instant)","description":"Instantly check whether a domain resolves, has valid TLS, its age and registrar, and reachability; returns a signed verdict. Price: Free.","tags":["verification","domain","website","tls","x402","instant"],"examples":["Is stripe.com a real, resolving site with valid TLS?"]},{"id":"email-check","name":"Email verification (instant)","description":"Instantly check an email's syntax, MX records, disposable-domain status, and deliverability signal; returns a signed verdict. Price: Free.","tags":["verification","email","deliverability","x402","instant"],"examples":["Is user@example.com a deliverable, non-disposable address?"]},{"id":"notarize","name":"Content notarization (instant, FREE)","description":"Instantly notarize content or a hash — an ed25519-signed proof it existed at time T. Proves existence, not authorship. FREE (no payment) — the easiest way to try Attestly.","tags":["notary","timestamp","hash","proof","x402","instant","free"],"examples":["Notarize the SHA-256 of this agreement text."]},{"id":"agent-verify","name":"Agent identity verification (instant)","description":"Instantly verify another agent is who it claims: validates its A2A agent card, confirms domain control (DNS/TLS/host match), and optionally verifies ed25519 key control via a signed message. Know your counterparty agent before you trust or transact. Price: Free.","tags":["verification","agent","identity","a2a","trust","x402","instant"],"examples":["Verify the agent at partner-agent.com is legitimate before I delegate to it."]}],"pricing":{"version":"2026.07","status":"introductory","currency":"USDC","network":"eip155:8453","notice":"Introductory pricing: intentionally low while Attestly builds a track record with early agents. Prices will increase as the service matures. Any change is published here with an effective_date at least 14 days before it applies — compare pricing.version to detect changes. Integrating now locks in today's rates under the guarantees below.","free_services":["notarize","domain_check","email_check","wallet_screen","agent_verify"],"services":{"entity_check":{"price_usd":4.0,"free":false,"type":"human"},"claim_check":{"price_usd":4.0,"free":false,"type":"human"},"seed_check":{"price_usd":0.1,"free":false,"type":"human"},"notarize":{"price_usd":0.0,"free":true,"type":"automated"},"domain_check":{"price_usd":0.0,"free":true,"type":"automated"},"email_check":{"price_usd":0.0,"free":true,"type":"automated"},"wallet_screen":{"price_usd":0.0,"free":true,"type":"automated"},"agent_verify":{"price_usd":0.0,"free":true,"type":"automated"}},"guarantees":{"price_lock":"The price quoted in the 402 challenge at request time is honored for that request; changes never apply retroactively.","advance_notice_days":14,"detect_changes":"pricing.version bumps on any change; poll GET /pricing."},"effective_date":null,"terms_url":"https://attestly.co/pricing"}}