{"id":628,"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.","card_url":"https://attestly.co/.well-known/agent-card.json","endpoint":"https://attestly.co","protocol_version":"0.3.0","first_seen":"2026-10-07T09:09:45.643704+00:00","last_verified":"2026-10-07T09:27:46.422710+00:00","card":{"url":"https://attestly.co","name":"Attestly","skills":[{"id":"entity-check","name":"Human-verified entity check","tags":["verification","kyb","entity","trust","x402"],"examples":["Is 'Acme Lending LLC' a registered active business in Arizona?"],"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."},{"id":"claim-check","name":"Human-verified claim check","tags":["verification","fact-check","trust","x402"],"examples":["Verify: 'https://example.com is the official site of Example Corp.'"],"description":"A real human checks a factual claim or URL against real sources; returns confirmed/refuted/uncertain with evidence. Price: 4.00 USDC."},{"id":"wallet-screen","name":"Wallet risk & sanctions screening (instant)","tags":["verification","wallet","sanctions","ofac","risk","x402","instant"],"examples":["Screen 0x1234...abcd on base before I send USDC."],"description":"Instantly screen an EVM address against OFAC sanctions + on-chain activity; returns a signed risk verdict. Informational, not compliance advice. Price: Free."},{"id":"domain-check","name":"Domain & website verification (instant)","tags":["verification","domain","website","tls","x402","instant"],"examples":["Is stripe.com a real, resolving site with valid TLS?"],"description":"Instantly check whether a domain resolves, has valid TLS, its age and registrar, and reachability; returns a signed verdict. Price: Free."},{"id":"email-check","name":"Email verification (instant)","tags":["verification","email","deliverability","x402","instant"],"examples":["Is user@example.com a deliverable, non-disposable address?"],"description":"Instantly check an email's syntax, MX records, disposable-domain status, and deliverability signal; returns a signed verdict. Price: Free."},{"id":"notarize","name":"Content notarization (instant, FREE)","tags":["notary","timestamp","hash","proof","x402","instant","free"],"examples":["Notarize the SHA-256 of this agreement text."],"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."},{"id":"agent-verify","name":"Agent identity verification (instant)","tags":["verification","agent","identity","a2a","trust","x402","instant"],"examples":["Verify the agent at partner-agent.com is legitimate before I delegate to it."],"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."}],"pricing":{"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.","status":"introductory","network":"eip155:8453","version":"2026.07","currency":"USDC","services":{"notarize":{"free":true,"type":"automated","price_usd":0.0},"seed_check":{"free":false,"type":"human","price_usd":0.1},"claim_check":{"free":false,"type":"human","price_usd":4.0},"email_check":{"free":true,"type":"automated","price_usd":0.0},"agent_verify":{"free":true,"type":"automated","price_usd":0.0},"domain_check":{"free":true,"type":"automated","price_usd":0.0},"entity_check":{"free":false,"type":"human","price_usd":4.0},"wallet_screen":{"free":true,"type":"automated","price_usd":0.0}},"terms_url":"https://attestly.co/pricing","guarantees":{"price_lock":"The price quoted in the 402 challenge at request time is honored for that request; changes never apply retroactively.","detect_changes":"pricing.version bumps on any change; poll GET /pricing.","advance_notice_days":14},"free_services":["notarize","domain_check","email_check","wallet_screen","agent_verify"],"effective_date":null},"version":"0.2.0","provider":{"url":"https://attestly.co","organization":"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.","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"protocolVersion":"0.3.0","documentationUrl":"https://attestly.co/","defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"preferredTransport":"JSONRPC"},"signature_status":"unsigned","signature_detail":"No card signature supplied","signature_key_url":null,"signature_checked_at":"2026-10-07T09:27:46.422710+00:00","source_name":"Global A2A Registry","source_url":"https://api.a2a-registry.org/public/agents","last_check":{"checked_at":"2026-10-07T09:27:46.42271+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"skills":[{"skill_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"]},{"skill_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"]},{"skill_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"]},{"skill_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"]},{"skill_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"]},{"skill_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"]},{"skill_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"]}],"relationships":[]}