{"uid":"cap_4BWKxWc2_ut_fqJWV_xuv","slug":"delx-evm-transaction-type-classifier-a849033f","name":"Delx EVM Transaction Type Classifier","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/evm-tx-type-classify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"transaction_type":{"type":"integer","description":"Transaction Type supplied to EVM Tx Type Classify; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"classification":"dynamic_fee","transaction_type":2},"schema":"delx/util-evm-tx-type-classify/v1","status":"pass","evidence":{"retained":false,"input_sha256":"8d7860bf2ad3e866ffa9821fc838a4e0b9a80325d1457ae15d94fe9bf16abe66","external_calls":0},"operation":"evm_preflight:evm_tx_type_classify"}},"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_6xa-_DpR87Q7bw2VlCIfn","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":"Classifies an EVM transaction type integer (e.g. 0, 1, 2) into a human-readable category such as 'legacy', 'access_list', or 'dynamic_fee'.","exampleAgentPrompt":"What type of Ethereum transaction is transaction_type 2 — is it legacy, access list, or dynamic fee?","exampleUseCases":[{"title":"Pre-flight EVM transaction validation","prompt":"Before I submit this transaction, can you check what type it is? The transaction_type field is set to 2 — I want to confirm it's a dynamic fee transaction."},{"title":"Debugging unknown EVM transaction type","prompt":"I'm getting a weird transaction_type integer of 1 back from the RPC — can you classify it for me so I know how to handle it?"},{"title":"Agent wallet fee-type routing","prompt":"My agent is about to send an on-chain transaction with transaction_type 0 — classify that so I can route it to the right gas estimation logic."}],"resultDescription":"Returns a JSON object containing the classification label (e.g. 'legacy', 'access_list', 'dynamic_fee'), the echoed transaction_type integer, a status ('pass'), an operation identifier ('evm_preflight:evm_tx_type_classify'), a schema version string, and an evidence block including the SHA-256 hash of the input, a flag confirming no data was retained, and the count of external calls made (always 0 — purely in-memory computation).","failureModes":["Invalid or missing transaction_type integer returns an error or unexpected classification","Unrecognized transaction type integers outside the defined EVM spec may return an unknown/unclassified result","Network or service downtime returns a non-200 HTTP response","Payment failure (USDC/x402) prevents the call from completing"],"whenToPreferThis":"Choose this endpoint when you need a fast, cheap, verifiable, in-memory classification of an EVM transaction type integer with no data retention and cryptographic evidence of the computation. Ideal for agent preflight checks before submitting Ethereum/EVM transactions, especially when operating in trustless or audit-sensitive environments. Prefer over custom logic when you want a pay-per-call model with no signup friction.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:53:55.427Z","isFirstParty":false,"canonicalSlug":"delx-evm-transaction-type-classifier-a849033f"}