{"uid":"cap_BeAGUudEiKYgUhYmtKUpz","slug":"saylor-innovations-data-desk-crypto-address-validator-05f976f2","name":"Saylor Innovations Data Desk - Crypto Address Validator","description":"Validate a crypto address offline: format and checksum for EVM EIP-55, Bitcoin, Litecoin, Tron, XRP, Solana, TON, Sui, Cosmos and Cardano, with network detection.","url":"https://saylorinnovations.com/api/crypto/address-check?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":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"the address to validate, any supported format (EVM 0x, Bitcoin/Litecoin/Dogecoin base58 or bech32, Tron T..., XRP r..., Solana base58, TON, Sui/Aptos 0x+64 hex, Cosmos bech32, Cardano addr1)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["address","valid","checksum_failure","verdict","matches","summary","note","source"],"properties":{"note":{"type":"string","description":"Caveat or context for reading the result"},"valid":{"type":"boolean","description":"True when the input passed validation"},"source":{"type":"string","description":"Data source the values come from"},"address":{"type":"string","description":"Account or contract address"},"matches":{"type":"array","description":"Matching items"},"summary":{"type":"string","description":"Short summary"},"verdict":{"type":"string","description":"Overall assessment derived from the listed reasons"},"checksum_failure":{"type":"boolean","description":"Checksum failure"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4fxiPDcy-UKHfhW6CIw4y","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a cryptocurrency address offline by checking format and checksum, detecting the network, for EVM, Bitcoin, Litecoin, Tron, XRP, Solana, TON, Sui, Cosmos, and Cardano.","exampleAgentPrompt":"Can you check if this crypto address is valid and tell me which blockchain it belongs to: 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B?","exampleUseCases":[{"title":"Validate withdrawal address before payout","prompt":"Before I send funds, can you validate this withdrawal address and confirm it's a properly checksummed EVM address: 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe?"},{"title":"Detect network for unknown address","prompt":"I have this crypto address and I'm not sure what blockchain it's for — can you figure out the network and tell me if the format is correct: TNPeeaaFB7K9cmo4uQpcU32zGK8G1NYqeL?"},{"title":"Verify Cardano address before DeFi interaction","prompt":"Can you verify that this Cardano address is valid before I use it in a smart contract: addr1qx2fxv2umyhttkxyxp8x0dlpdt3k6cwng5pxj3jhsydzer3jcu5d8ps7zex2k2xt3uqxgjqnnj0vs68szgafdrqgkq8t5scnk?"}],"resultDescription":"A JSON object containing the original address, a boolean valid flag, a boolean checksum_failure flag, a verdict string summarizing the assessment, an array of matching blockchain networks, a short summary string, a note with caveats or context, and a source field indicating data provenance. All validation is performed offline without network calls.","failureModes":["Missing required 'address' query parameter returns an error","Completely unrecognizable string format returns valid=false with no matches","Partial or truncated addresses may return valid=false even for real networks","Mixed-case EVM addresses with wrong checksum return checksum_failure=true","Non-standard or newer blockchain address formats not in the supported list return no match"],"whenToPreferThis":"Use this endpoint when you need fast, offline, multi-chain crypto address validation without making on-chain RPC calls. It is ideal for pre-flight checks before sending payments, sanitizing user-submitted wallet addresses, or determining which blockchain network an address belongs to. It covers the major chains (EVM, Bitcoin, Litecoin, Tron, XRP, Solana, TON, Sui, Cosmos, Cardano) in a single call, making it preferable over chain-specific validators when the network is unknown.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T00:34:35.893Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-data-desk-crypto-address-validator-05f976f2"}