{"uid":"cap_kuxAWJYqM71pq0O-Q3xIX","slug":"delx-commerce-x402-settlement-transaction-shape-validator-22f00e55","name":"Delx Commerce — X402 Settlement Transaction Shape Validator","description":"Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.","url":"https://commerce.delx.ai/api/v1/x402/x402-settlement-tx-shape?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"network":{"type":"string","maxLength":8192,"description":"Network supplied to X402 Settlement Tx Shape; used only for this bounded calculation and processed in memory without retention."},"transaction":{"type":"string","maxLength":8192,"description":"Transaction supplied to X402 Settlement Tx Shape; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"network":"eip155:8453","shape_valid":true,"transaction":"0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","onchain_verified":false},"schema":"delx/util-x402-settlement-tx-shape/v1","status":"pass","evidence":{"retained":false,"input_sha256":"6b6686833b680e0e8c6f79699ebc9ae5179b0d0ffe3743085905a52387b0e70c","external_calls":0},"operation":"delivery_contract:x402_settlement_tx_shape"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_azVOn5bbmXrgkTlEVJNF1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates the shape and structure of an X402 settlement transaction for a given network, returning whether the transaction conforms to the expected format and if it has been verified on-chain.","exampleAgentPrompt":"Can you check if this transaction '0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' is a properly shaped x402 settlement transaction on the eip155:8453 network?","exampleUseCases":[{"title":"Pre-submission x402 transaction audit","prompt":"Before I submit this x402 payment, can you validate that transaction '0xbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb' has the correct settlement shape for the eip155:8453 network?"},{"title":"Debugging malformed x402 payment","prompt":"My x402 agent payment isn't going through — can you check if transaction '0xcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc' has the right structure for the Base network (eip155:8453)?"},{"title":"Confirming Solana x402 settlement shape","prompt":"Can you verify whether this transaction '5xAbcXYZ123456789abcdefghij' is correctly shaped as an x402 settlement transaction on the Solana network?"}],"resultDescription":"Returns a JSON object confirming whether the transaction matches the expected x402 settlement shape (shape_valid), whether it has been verified on-chain (onchain_verified), the network it was checked on, the operation label, evidence metadata including an input SHA256 hash and a flag indicating no data is retained, and a schema version string.","failureModes":["Malformed or missing transaction input returns shape_valid: false","Unsupported or unrecognized network identifier may return an error or invalid shape result","Empty or too-long inputs (exceeding 8192 characters) may be rejected","If the network string doesn't match a recognized chain format, the response may be undefined"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that an x402 settlement transaction is correctly shaped before submitting it, or to diagnose why a payment transaction is being rejected. It is purpose-built for x402 protocol validation and provides verifiable, stateless computation with no data retention — ideal for privacy-sensitive agent workflows. Prefer it over generic blockchain explorers when you specifically need x402 protocol shape conformance checking.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:53:42.248Z","isFirstParty":false,"canonicalSlug":"delx-commerce-x402-settlement-transaction-shape-validator-22f00e55"}