{"id":572576,"recorded_at":"2026-10-27T22:39:58.501726Z","observed_at":"2026-10-27T22:39:58.501652Z","subject_kind":"endpoint","subject":"dae8b3b6-9dfc-4a04-89ea-fa37008356e9","kind":"mcp.tools","method":"probe.mcp/1","body":{"count":9,"tools":[{"description":"Independently verify a 5arz PoHF JWT: checks the ES256 signature against the live public JWKS and validates expiry/not-before, then returns valid/invalid plus the decoded claims. No API key needed — this is pure cryptographic verification you could also do with any standard JWT library. Accepts either the legacy pohf_jwt / pop_jwt or the standards-conformant sd_jwt_vc (IETF SD-JWT VC, typ dc+sd-jwt).","inputSchema":{"additionalProperties":false,"properties":{"pohf_jwt":{"description":"The credential returned by verify_human — the compact JWT, or the sd_jwt_vc string (ends in ~).","type":"string"}},"required":["pohf_jwt"],"type":"object"},"name":"check_credential"},{"description":"Fetch a Proof-of-Human-Fulfillment receipt by attestation id. Returns the signed packet, verifier identifier, JWKS URL, and a how-to-verify hint. Free, no API key — pair it with check_credential to verify the signature yourself.","inputSchema":{"additionalProperties":false,"properties":{"attestation_id":{"description":"Returned at fulfillment, or in the X-Attestation-Id header on the buy response.","type":"string"}},"required":["attestation_id"],"type":"object"},"name":"get_attestation_receipt"},{"description":"Return the current plan, seals and document checks used this month, and what remains. Requires an API key.","inputSchema":{"additionalProperties":false,"properties":{"apiKey":{"description":"Optional: pass your key here if your client cannot set the Authorization header.","type":"string"}},"type":"object"},"name":"get_balance"},{"description":"Return the current Verified-Human-Hour (VHH) index — the benchmark price of one hour of verified human work/attention, in USD. Free, no API key. Useful for pricing verified-human data and as a citable benchmark.","inputSchema":{"additionalProperties":false,"properties":{},"type":"object"},"name":"get_vhh_index"},{"description":"List currently-buyable verified human work tasks. Each task includes its USD price, remaining slots, supported settlement chains, and the kind of Proof-of-Human-Fulfillment receipt issued on completion. Free, no API key.","inputSchema":{"additionalProperties":false,"properties":{"limit":{"description":"Max tasks to return (default 20, max 100).","type":"number"}},"type":"object"},"name":"list_verified_human_tasks"},{"description":"Buy one slot of a verified human task. Called without payment it returns an HTTP 402 / x402 challenge with settlement instructions; settle USDC on the offered chain and call again with x_payment and purchase_id to receive an attestation_id — a verifiable Proof-of-Human-Fulfillment receipt. No API key required; the payment is the authentication.","inputSchema":{"additionalProperties":false,"properties":{"agent_key_thumb":{"description":"Optional RFC 7638 JWK thumbprint of your agent key; embedded in the receipt's cnf.jkt claim.","type":"string"},"purchase_id":{"description":"Purchase id from the previous 402. Required when presenting an x_payment.","type":"string"},"task_id":{"description":"Task id from list_verified_human_tasks.","type":"string"},"x_payment":{"description":"Optional X-PAYMENT settlement proof. Omit to receive the 402 challenge.","type":"string"}},"required":["task_id"],"type":"object"},"name":"purchase_verified_human_task"},{"description":"Create a 5arz API key so your agent can request proof-of-human credentials. Every new key starts on the Free plan — 1,000 credential seals a month and 10 document checks, no card. Pass mode:\"test\" for an unlimited free sandbox key (arz_test_…) whose credentials are marked test:true — never treat test credentials as production proof. The key is shown once; store it.","inputSchema":{"additionalProperties":false,"properties":{"contactEmail":{"description":"Contact email for the account.","format":"email","type":"string"},"mode":{"default":"live","description":"live for production keys; test for an unlimited free sandbox key.","enum":["live","test"],"type":"string"},"name":{"description":"Your company or agent name.","type":"string"}},"required":["name","contactEmail"],"type":"object"},"name":"register_agent"},{"description":"Get a Stripe checkout link for a 5arz plan. Free (1,000 seals/mo, 10 document checks), Starter ($99/mo, 100k seals, $1.25/document check), Growth ($499/mo, 1M seals, $0.75/check), Scale ($2,499/mo, unlimited seals, $0.50/check). SEALS are credential signatures and are effectively free; DOCUMENT CHECKS are the vendor identity verification and are what you are really paying for. Human verification is always free to the human, at any volume. Requires an API key.","inputSchema":{"additionalProperties":false,"properties":{"apiKey":{"description":"Optional: pass your key here if your client cannot set the Authorization header.","type":"string"},"plan":{"description":"starter=$99/mo, growth=$499/mo, scale=$2,499/mo. See https://5arz.com/pricing.","enum":["starter","growth","scale"],"type":"string"}},"required":["plan"],"type":"object"},"name":"subscribe"},{"description":"Mint a signed Proof-of-Human-Fulfillment (PoHF) credential attesting a real, ID-verified, live human performed an action. Provide sessionId to attest work fulfillment, or memberId to attest that an ID-verified human is behind an account (optionally wallet-bound). This does not establish that the person holds only one account — read sybil_checked in the returned claims before gating one-per-person actions. Counts as one seal against your monthly plan allowance (1,000/month on Free; unlimited for test keys). Returns an ES256 JWT that anyone can verify against the public JWKS — pass it to check_credential. Requires an API key (Authorization: Bearer, or the apiKey argument).","inputSchema":{"additionalProperties":false,"properties":{"apiKey":{"description":"Optional: pass your key here if your client cannot set the Authorization header.","type":"string"},"memberId":{"description":"Member to attest as an ID-verified, live human (personhood path).","type":"string"},"sessionId":{"description":"Verified session to attest (work-fulfillment path).","type":"string"},"wallet":{"description":"Optional EVM address to bind for on-chain isVerifiedHuman() gating (personhood path).","type":"string"},"walletNonce":{"description":"Optional wallet challenge nonce.","type":"string"},"walletSig":{"description":"Optional EIP-191 personal_sign of the wallet challenge.","type":"string"}},"type":"object"},"name":"verify_human"}]},"body_sha256":"fa1067d8806c3d1186bb8fd3882c02cc6fe4a2ab2059f3d06547d593067da1f2","prev_id":null,"leaf":"0xe79d322ed4617edf4459e70f53af1be575b97c71d2f2bd042ade13fad8eea0a3","leaf_text":"{\"body\":\"fa1067d8806c3d1186bb8fd3882c02cc6fe4a2ab2059f3d06547d593067da1f2\",\"id\":572576,\"kind\":\"mcp.tools\",\"method\":\"probe.mcp/1\",\"observed_us\":1793140798501652,\"prev\":null,\"subject\":\"dae8b3b6-9dfc-4a04-89ea-fa37008356e9\",\"subject_kind\":\"endpoint\"}","day":{"day":"2026-10-27","leaves":273461,"root":"0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795","chained":"0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4","anchor_chain":"eip155:5042002","anchor_tx":"0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4","anchor_block":69414147},"proof":["0xe79df18f8498ea364cc8e9785dfdcd4119802671594452484e5c66b37f676ffc","0x09fee4d2f0626b51690bad3eb20d930d274c0996b66cf69e60ab81b0c5c6cd00","0x62077a466d4431d755cd1eee7fad7ab55a05f983b69c0196cc1d7897f915be1a","0xfa03e2cf193cc3a3cfaadf20669d09b76c8fea253067ea8096552b1586379e4f","0x38d4b3c1814bdd7ad77fb87ec1bbc2e585cf847103ba1560ee199ac88618e63c","0xb79404d1e65c18f8d75f33846a893878a4b17c555ad0e4384a7d4db2b633d3c7","0x9277d23afc2c885c18b1b43d9dca45d654ec94187d4b80616d55cca616346afd","0x6b457c15aeb1b11a8b75e6c455c8ed96cc98330334d5fe69ce11566ab9d08fdf","0x0c929b2b80e2f67e95df5a364d8bbe2bd26441296c231574867f976859f33f79","0xaec5d3351e5604d4e32362929edfac95737668bebf3cee0eb46499b94228ccab","0x71c8691e7266a630f55422792837d4ddf268c83444f68d63c646c42b70b5ded5","0x4f9b484326a98846a2342f967ce1e64ee9fa304288bb4355ab666475eb77b61c","0xab6eb305329046d5ccb835dd8ca955f794e3ca110379a94dbdc780d016448561","0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd","0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629","0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f","0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310","0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197","0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699"]}