{"uid":"cap_U_sZrUU1Slqsfw2IP4BNb","slug":"crypto-sanity-address-validator-b94989a2","name":"Crypto Sanity Address Validator","description":"Validate an EVM address format, compute/verify EIP-55 checksum, and flag zero, burn and low-entropy address patterns.","url":"https://gateway.apiosk.com/crypto-sanity/validate/address","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.022","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_uSXeSvG1tRPXMO2Uf-PJb","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":"Validates a cryptocurrency wallet address for a given blockchain, checking format correctness, checksum validity, and risk flags","exampleAgentPrompt":"Can you check if this Ethereum address is valid and has no risk flags before I send funds to it: 0x742d35Cc6634C0532925a3b844Bc454e4438f44e?","exampleUseCases":null,"resultDescription":"Returns a JSON object with: ok (boolean, request success), valid (boolean, whether the address is valid for the given chain), checksum_valid (boolean, whether the address passes checksum verification), and risk_flags (array of strings listing any detected risk indicators such as known scam addresses or blacklisted addresses)","failureModes":["Invalid or unsupported chain identifier returns an error or valid:false","Malformed request body missing required fields returns a 400-level error","Empty address string may return valid:false with no risk_flags","Unknown or newly added chains may not be supported, returning an error","Network timeout or upstream service unavailability returns a 5xx error"],"whenToPreferThis":"Use this endpoint when you need to verify a cryptocurrency wallet address before executing a transaction, onboarding a new payment recipient, or validating user-submitted addresses in a web3 application. It is especially valuable when you need both format/checksum validation and basic risk/compliance screening in a single call. Prefer this over simple regex checks when you need risk flag detection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:00:07.450Z","isFirstParty":false}