{"uid":"cap_R773ZiyMdAH1GCKszwMhs","slug":"coinopselect-attestation-verify-d70888c7","name":"CoinOpSelect Attestation Verify","description":"Paid on-chain token, wallet, contract and research data over x402 on Base.","url":"https://coinop.publicvm.com/api/v1/attestation/verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"attestation":{"type":"object","example":{"hash":"0x00","input":"summarize the contract","output":{"result":"ok"}}}}},"responseSchema":{"type":"json","example":{"query":"attestation-verify","valid":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_j9liZrjDyetLrFwPAUsAY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies the validity of an on-chain attestation object, confirming its hash, input query, and output result are authentic.","exampleAgentPrompt":"Can you verify this attestation for me — hash is 0xabc123, the original input was 'summarize the contract', and the output result was 'ok'? I want to confirm it's valid before trusting the result.","exampleUseCases":[{"title":"Validate agent contract summary","prompt":"Before I trust this contract summary my agent produced, can you verify the attestation? The hash is 0xdeadbeef, the input was 'explain this contract', and the output was 'This is a standard ERC-20 token contract.'"},{"title":"Check wallet data attestation integrity","prompt":"I got back some wallet balance data with an attestation — hash 0x1234abcd, input 'get wallet balance', output was '12.5 ETH'. Can you confirm this attestation is valid and hasn't been tampered with?"},{"title":"Audit agent research output authenticity","prompt":"I need to verify this on-chain attestation before publishing: hash 0xfeed5678, original query was 'research token DOGE on Base', output result was a market summary. Is the attestation legitimate?"}],"resultDescription":"Returns a JSON object with a 'query' field set to 'attestation-verify' and a 'valid' boolean indicating whether the submitted attestation is authentic and intact.","failureModes":["Invalid or malformed attestation hash returns valid: false","Missing required attestation fields causes a 400 or similar error","Unrecognized hash not found on-chain may return valid: false","Payment failure via x402 results in 402 Payment Required before processing","Network or provider downtime causes timeout or 5xx error"],"whenToPreferThis":"Use this endpoint when you need to cryptographically confirm that an AI agent's output or on-chain data query result is backed by a legitimate attestation on Base. Prefer this over manual hash comparison or off-chain trust when operating in an agent pipeline that requires auditability and on-chain provenance of results.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:37:42.494Z","isFirstParty":false,"canonicalSlug":"coinopselect-attestation-verify-d70888c7"}