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Agoranome fetches a free sample from your endpoint's host, checks that your paid route on the same host answers with an x402 offer, and signs an attestation of what it saw and when: the sample's SHA-256 and body, and the offer's price, network and pay-to. Buyers check it at a public URL.","extensions":{"bazaar":{"info":{"input":{"method":"GET","queryParams":{"resource":"https://api.example.com/v1/pdf","sample":"https://api.example.com/v1/pdf/sample"},"type":"http"},"output":{"example":{"result":{"attestation":{"offer":{"accepts":[{"pay_to":"0x...","price_usd":0.02}]},"provenance":{"agent_address":"0x...","signature":"..."},"sample":{"bytes":1832,"sha256":"...","status":200}},"attestation_id":"att_...","url":"https://api.agoranome.com/v1/attestations/att_..."}},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{"resource":{"description":"Your paid x402 endpoint, on the same host as the sample","type":"string"},"sample":{"description":"Public https URL that returns a sample output without payment","type":"string"}},"required":["sample","resource"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}}},"lastUpdated":"2026-10-24T02:32:19.766Z","quality":{"l30DaysTotalCalls":3,"l30DaysUniquePayers":1,"lastCalledAt":"2026-10-24T02:32:19.375Z"},"resource":"https://api.agoranome.com/v1/seller/attest","serviceName":"Agoranome","tags":["x402","attestation","trust","output check","seller tools"],"type":"http","x402Version":2},"source":"x402_bazaar","summary":"Trust proof for an x402 seller: a signed attestation of your API's sample output, so buyer agents can check it before paying. Agoranome fetches a free sample from your endpoint's host, checks that your paid route on the same host answers with an x402 offer, and signs an attestation of what it saw and when: the sample's SHA-256 and body, and the offer's price, network and pay-to. Buyers check it at a public URL."},"body_sha256":"697b0da8a661a3cd6342f404832c6ec15df5959328344c7e1b5cdb6d9f499134","prev_id":null,"leaf":"0x59b23369bb8a67156f14532ece077806942434031c5a7d69ba2eb37234f0dc3b","leaf_text":"{\"body\":\"697b0da8a661a3cd6342f404832c6ec15df5959328344c7e1b5cdb6d9f499134\",\"id\":64799,\"kind\":\"listing\",\"method\":\"baseline/1\",\"observed_us\":1793025457310245,\"prev\":null,\"subject\":\"x402_bazaar:https://api.agoranome.com/v1/seller/attest\",\"subject_kind\":\"source_record\"}","day":{"day":"2026-10-26","leaves":296695,"root":"0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8","chained":"0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a","anchor_chain":"eip155:5042002","anchor_tx":"0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae","anchor_block":69251483},"proof":["0x59b244dbe013cc89822b81db3fa0f4b27012b28206c64a72981c6a23ac14e6a3","0xad83c15e69f4c9f23a419cfefc77e7a8547a8f0615505b6496828cd42dfd21f5","0x6747fab425c10f6cd2f8db4ec34bc747c9b077344368bc1fad422613a5bb521b","0xb14f54ee53b2b416037320f2724fa1554bcfd140480190c69a2b9990297b8589","0x3c5667683b094f40e6cc6fa71f60dc16fa505d3e3265f07693c0a1a52a8014bb","0xd0c2594d0d1b184987531afebd027d56cecf7f5a002a073ca75b317f6645cb00","0x408a05b0455f4d4a5e08ffcc04b84f3a4b93b65bba7a3c389aa273c8b05488a5","0x38943124942d8428380e4d121c872e70e8723046c88ccf0fe22f451d0bf69410","0x9fe2b5bb49c3c1c0cfb9a7e2175505abb418851419201d4ff747b61a8778232a","0x109a3cbe67d20751c1bafc45b08ecc03404d3cc4decd7b239de884bc7e6340d6","0x3ada80dcde3daf850269166ea2ab667084c23fe8ab3b3994664b930470ebdef7","0xf522fa92d4115c2b18b96aa43119f8df9b4e96c92f5d6449d0fe96dcd4bf324c","0xc8abb13c711b67d9f1ef145286ed450a0f5566f054a4b290ea3d711873bcbe20","0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829","0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d","0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0","0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d","0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d","0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a"]}