{"uid":"cap_YLwNALuxy1hEr04Vgmw88","slug":"contract-source-code-verification-status-checker-76ba7c52","name":"Contract Source Code Verification Status Checker","description":"Is a contract's source code verified on the explorer — Genesis402 / UnyKorn Operator Network","url":"https://twin.unykorn.org/contract-verified?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"params":{"type":"object","properties":{"chain":{"enum":["ethereum","base","polygon","arbitrum","optimism","bsc","avalanche","gnosis","linea","scroll"],"type":"string"},"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"type":"contract-verified","receipt":{"tx_hash":"0x<64hex>","amount_usd":0.006,"receipt_id":"g402-<16hex>"},"generated_at":"<iso8601>"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","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":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_il51aO8RblnsSQ9sfmLsR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a smart contract's source code is verified on a block explorer for a given EVM chain and address","exampleAgentPrompt":"Is the source code for the contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 verified on Ethereum's block explorer?","exampleUseCases":[{"title":"Audit before DeFi interaction","prompt":"Before I interact with this DeFi protocol, can you check if the contract at 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D on Ethereum has verified source code on the explorer?"},{"title":"Multi-chain contract trust check","prompt":"I'm evaluating a token bridge — can you check if the contract 0x4200000000000000000000000000000000000010 on Base has its source code verified?"},{"title":"Developer deployment verification","prompt":"I just deployed my contract at 0xAbCd1234AbCd1234AbCd1234AbCd1234AbCd1234 on Polygon — can you confirm whether it shows as verified on the block explorer yet?"}],"resultDescription":"Returns a boolean ok field indicating whether the contract's source code is verified on the block explorer for the specified chain, along with a payment receipt containing the transaction hash, USD amount charged, and a unique receipt ID for auditing purposes.","failureModes":["Invalid or malformed contract address (not matching 0x + 40 hex chars) returns an error","Unsupported chain name not in the allowed enum causes a validation error","Contract address does not exist on the specified chain may return ok: false or an error","Network timeouts querying remote block explorer APIs","Payment failure if insufficient USDC balance for the $0.006 fee"],"whenToPreferThis":"Choose this endpoint when you need a quick, paid, multi-chain lookup of whether a specific smart contract's source code is verified on its respective block explorer, especially if you are already using the UnyKorn/Genesis402 ecosystem for other on-chain data queries. It supports 10 major EVM chains in a single API surface. Prefer this over manually scraping Etherscan or similar explorer websites, or when you need a reliable programmatic answer with a payment receipt for auditing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:28:17.893Z","isFirstParty":false,"canonicalSlug":"contract-source-code-verification-status-checker-76ba7c52"}