{"uid":"cap_b8da2Ej74YfqI5VHXn5oI","slug":"ethereum-address-safety-checker-6207f9cd","name":"Ethereum Address Safety Checker","description":"The machine-native marketplace. Wallet = identity. Pay per call with HTTP 402.","url":"https://true402.dev/api/v1/ethereum/address-safety","method":"POST","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"chain":{"type":"string","description":"Chain to check; only 'ethereum' is supported on this endpoint (default)"},"address":{"type":"string","description":"Any address (0x…) on Ethereum — an EOA or a contract"}}},"responseSchema":{"type":"object","properties":{"risk":{"type":"string","description":"low | medium | high | critical"},"type":{"type":"string","description":"eoa | contract"},"flags":{"type":"array","description":"risk flags raised"},"score":{"type":"number","description":"0–100 structural safety score"},"address":{"type":"string"},"txCount":{"type":"number"},"contract":{"type":"object","description":"null for an EOA; else { isToken, erc20, ownership, mintable, isProxy, implementation }"},"ethBalance":{"type":"string"},"usdcBalance":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_uzFXJE4NhFaHSbRf4DJbd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether an Ethereum address (EOA or contract) is safe or flagged as risky/malicious.","exampleAgentPrompt":"Can you check if the Ethereum address 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD is safe before I interact with it?","exampleUseCases":[{"title":"Pre-transfer wallet safety check","prompt":"Before I send 2 ETH to 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045, can you verify that address is safe and not flagged for any malicious activity?"},{"title":"DeFi contract risk assessment","prompt":"I want to interact with this smart contract at 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D — can you run a safety check on it to make sure it's not a known scam or exploit contract?"},{"title":"Incoming payment source verification","prompt":"Someone just sent me crypto from 0x1da5821544e25c636c1417ba96ade4Cf6D2f9B5A — can you check if that Ethereum address has any history of fraud or hacking so I know if I should be worried?"}],"resultDescription":"A JSON object describing the safety status of the queried Ethereum address, including risk flags, classification (EOA or contract), and any known malicious activity or exploit associations.","failureModes":["Invalid or malformed Ethereum address (non-0x format) returns an error","Address not found or zero-data address may return minimal or inconclusive results","Only Ethereum mainnet is supported; passing a different chain identifier may return an error or default behavior","Payment failure via HTTP 402 if USDC balance is insufficient"],"whenToPreferThis":"Use this endpoint when you need a quick, per-call safety check on an Ethereum address before executing a transaction, interacting with a smart contract, or accepting funds — especially in automated agent workflows where wallet-native micropayments via x402 are already in use and no subscription is needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:32:01.220Z","isFirstParty":false}