{"uid":"cap_riB1t7eMDYG-f-wCg-oOY","slug":"farelight-research-transaction-lookup-4f3dee03","name":"Farelight Research Transaction Lookup","description":"Agent payments on Arc, measured in the open. Every x402 settlement, read from the chain and classified by public, versioned rules.","url":"https://farelight.xyz/api/v1/tx/%7Bhash%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"as_of":"2026-09-25T18:42:31.596Z","tx_hash":"0x425d861850aceedd3682ec63bb00502676158f4da11353844d1732cbc87b9fc5","payments":[{"payee":"0x2ca647ce44d428b00caceffbbee9eea516e66494","payer":"0x0bc5ffac16bb7f3398b173a061d81920cf3e238b","phase":"public","token":"USDC","amount":"0.001000","method":"transferWithAuthorization","gas_used":117047,"log_index":15,"submitter":"0xa3dfb958c725cba41bc3dd8706eb638872436f5f","batch_size":1,"block_time":"2026-09-23T14:36:10.000Z","facilitator":"circle","payee_label":{"entity":"farelight-seed","category":"test"},"payer_label":{"entity":"farelight-test-payer","category":"test"},"x402_likely":true,"block_number":22362438,"payment_type":"transfer","class_reasons":{"rules":[{"rule":"T5","evidence":{"label":"test:farelight-seed"}},{"rule":"also:A1a"}]},"class_version":"v1.0","gas_cost_usdc":"0.002886603990654538","auth_log_index":13,"classification":"test","class_confidence":0.99}],"classification_run":131,"methodology_version":"v1.0"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_CvcMtwp_XdPCuWQztPQ2Z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x3600000000000000000000000000000000000000","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches classified x402 payment settlement data for a given on-chain transaction hash, including payer/payee labels, classification rules, and gas costs","exampleAgentPrompt":"Can you look up transaction 0x425d861850aceedd3682ec63bb00502676158f4da11353844d1732cbc87b9fc5 on Farelight and tell me how it was classified — is it a real x402 payment or a test, and who were the payer and payee?","exampleUseCases":[{"title":"Audit a suspicious agent payment","prompt":"I just saw a transaction hash 0xabc123... go through our agent pipeline — can you pull it up on Farelight and tell me if it was classified as a real payment or a test, what the confidence score is, and which facilitator handled it?"},{"title":"Verify x402 settlement before releasing service","prompt":"Before I mark this order as fulfilled, can you check transaction 0x7f3d9...e12a on Farelight to confirm it's classified as a genuine x402 transfer and not a test payment?"},{"title":"Investigate gas costs for a specific payment","prompt":"Can you look up transaction 0x9b2c4...f88e on Farelight and tell me how much gas was used and what that cost in USDC — I want to know if the fee overhead is eating into our margins?"}],"resultDescription":"Returns a JSON object with the transaction hash, timestamp, and an array of payment records. Each payment includes payer and payee Ethereum addresses with entity labels, USDC amount, gas used and gas cost in USDC, facilitator name, block number and time, x402 likelihood flag, payment classification (e.g. 'test', 'production'), classification confidence score (0–1), and the versioned rules that drove the classification decision.","failureModes":["Transaction hash not found on chain returns empty payments array","Malformed or invalid transaction hash returns an error","Transaction exists but is not an x402 payment — x402_likely will be false and classification may be low-confidence","Classification rules may not yet cover novel payment patterns, resulting in lower confidence scores","Network or RPC latency may cause delayed responses for very recent transactions"],"whenToPreferThis":"Use this endpoint when you need authoritative, rule-based classification of a specific x402 payment transaction — especially when you need to distinguish test payments from production payments with a confidence score and traceable rule rationale. Prefer this over generic blockchain explorers when you need x402-specific labeling, payer/payee entity resolution, and gas cost in USDC rather than raw ETH.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:38:12.487Z","isFirstParty":false,"canonicalSlug":"farelight-research-transaction-lookup-4f3dee03"}