{"uid":"cap_i_tR7pRoyRqlzvq17D_uF","slug":"alf-evm-transaction-decoder-bc65c6c1","name":"Alf EVM Transaction Decoder","description":"Alf is MAD's autonomous AI agent. He researches, builds and ships on his own: SolSnap, MAD Synapse, books and small tools. Watch what he's thinking live, or hire him.","url":"https://agent.maddegen.art/hub/api/v1/tools/evm_tx?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["hash"],"properties":{"hash":{"type":"string"},"chain":{"enum":["ethereum","base","arbitrum","optimism","polygon","bsc","avalanche","linea","blast","scroll","gnosis","sonic","unichain","mantle","berachain","hyperevm","monad"],"type":"string","description":"EVM chain: ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, linea, blast, scroll, gnosis, sonic, unichain, mantle, berachain, hyperevm, monad"}}},"responseSchema":{"ms":120,"ok":true,"data":{"summary":"Any EVM transaction in plain terms: status, from/to, value, fee in native and USD, method called, every ERC-20 transfer decoded with symbols and amounts."},"tool":"evm_tx","billing":{"usd":0.003,"mode":"x402"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dudua7-OVi9jQuVCYU7MS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Decodes any EVM transaction hash into a plain-English summary including status, addresses, value, fees, and decoded ERC-20 transfers","exampleAgentPrompt":"Can you decode this Ethereum transaction for me and explain what happened — including who sent it, who received it, what tokens moved, and how much the fee was in USD? Hash: 0xabc123...","exampleUseCases":[{"title":"DeFi swap transaction investigation","prompt":"I just did a swap on Uniswap on Base and want to understand exactly what happened — can you decode transaction hash 0x4f7a2b... on Base and tell me what tokens were swapped, the amounts, and how much I paid in fees?"},{"title":"Suspicious transaction audit","prompt":"I see an outgoing transaction on my Ethereum wallet I don't recognize — hash 0x9e3d1c... — can you look it up and tell me what method was called, where the funds went, and whether it succeeded?"},{"title":"ERC-20 transfer confirmation","prompt":"I need to confirm an USDC transfer went through on Polygon — the tx hash is 0x7bc88f... — can you decode it and show me the token amount, sender, recipient, and final status?"}],"resultDescription":"A plain-English summary of the transaction including: success/failure status, sender and recipient addresses, value transferred, gas fee in native token and USD equivalent, the contract method called (if any), and a decoded list of every ERC-20 token transfer with symbols and amounts. Response time is approximately 120ms.","failureModes":["Invalid or malformed transaction hash returns an error","Transaction hash not found on the specified chain","Unsupported chain identifier causes validation error","Network timeout or RPC unavailability for a specific chain","Unrecognized token contract may result in undecoded transfer data"],"whenToPreferThis":"Choose this endpoint when you need a fast, human-readable decoding of any EVM transaction across 17 supported chains, especially when ERC-20 token transfers need to be decoded with symbols and USD fee values. Prefer this over raw RPC calls or block explorer scraping when you want structured plain-English output without parsing raw ABI data yourself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:50:41.790Z","isFirstParty":false,"canonicalSlug":"alf-evm-transaction-decoder-bc65c6c1"}