{"uid":"cap_4gzxmt4YlQWvhLafVUAKl","slug":"task-radar-abi-lookup-sourcify-49dae2eb","name":"Task Radar ABI Lookup (Sourcify)","description":"Verified contract ABI + compiler/verification status (Sourcify). Chains: ethereum, base, arbitrum, optimism, polygon, bsc. 0.02 USDC/call on Base.","url":"https://task-radar-x402.vercel.app/api/abi?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"const":"http"},"method":{"const":"GET"},"queryParams":{"type":"object","properties":{"chain":{"type":"string","description":"ethereum|base|arbitrum|optimism|polygon|bsc (default ethereum)"},"address":{"type":"string","description":"Contract address 0x..."}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Fs6nQQgJbNqVlgKH7MkZB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches the verified contract ABI, compiler info, and Sourcify verification status for a smart contract address on a supported EVM chain","exampleAgentPrompt":"Can you fetch the verified ABI and compiler info for the contract at 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 on Ethereum?","exampleUseCases":[{"title":"Interact with a DeFi contract programmatically","prompt":"Get me the full verified ABI for the Uniswap V3 router at 0xE592427A0AEce92De3Edee1F18E0157C05861564 on Ethereum so I can call its swap functions."},{"title":"Verify contract source before investing","prompt":"Is the contract at 0x4200000000000000000000000000000000000006 on Base actually verified on Sourcify? Show me its compiler info and ABI."},{"title":"Decode contract interface on Arbitrum","prompt":"I need the ABI for the contract 0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8 on Arbitrum — can you pull it from Sourcify and tell me what functions it exposes?"}],"resultDescription":"Returns the full verified contract ABI (as a JSON array of function/event/error descriptors), along with compiler version, language, verification status (e.g. fully verified, partially verified), and Sourcify metadata for the requested contract address on the specified chain.","failureModes":["Contract not verified on Sourcify — returns unverified or 404 status","Invalid contract address format — request fails with validation error","Unsupported chain specified — returns error indicating valid chain options","Contract exists on-chain but was never submitted to Sourcify — no ABI available","Network timeout fetching from Sourcify upstream"],"whenToPreferThis":"Use this endpoint when you need the verified ABI or compiler metadata for a smart contract and want Sourcify-backed verification status rather than Etherscan. Preferred when working across multiple chains (Base, Arbitrum, Optimism, Polygon, BSC) with a single unified API and x402 micropayment access. Choose this over Etherscan-based alternatives when you care about open, decentralized verification provenance via Sourcify.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:39:40.013Z","isFirstParty":false,"canonicalSlug":"task-radar-abi-lookup-sourcify-49dae2eb"}