{"uid":"cap_JHFzMB3-88oA4pPwJKFZh","slug":"base58check-string-verifier-930f35cf","name":"Base58Check String Verifier","description":"Verify a base58check string and split out its version byte — Genesis402 / UnyKorn Operator Network","url":"https://twin.unykorn.org/base58check-verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"params":{"type":"object","properties":{"data":{"type":"string"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"type":"base58check-verify","receipt":{"tx_hash":"0x<64hex>","amount_usd":0.002,"receipt_id":"g402-<16hex>"},"generated_at":"<iso8601>"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ByV7wF-eFuYfkOtVZEoH2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies a base58check-encoded string and extracts its version byte","exampleAgentPrompt":"Can you verify whether this base58check string is valid and tell me what version byte it uses: '1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf Na'?","exampleUseCases":[{"title":"Bitcoin address format validation","prompt":"I need to check if this Bitcoin address is properly formatted and has a valid checksum — can you verify '1BoatSLRHtKNngkdXEeobR76b53LETtpyT' and tell me its version byte?"},{"title":"WIF private key format check","prompt":"Before I try to import this private key, can you validate that this base58check string is correctly encoded and show me its version byte: '5HueCGU8rMjxECyDialwujzvqD6NMivnJHoGPNPPCbPF7G7T4q1'?"},{"title":"Multisig P2SH address verification","prompt":"I have a P2SH address '3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy' — can you verify it's a valid base58check string and extract its version byte so I can confirm it's the right address type?"}],"resultDescription":"A JSON object indicating whether the base58check string is valid (ok: true/false), the extracted version byte, the type identifier ('base58check-verify'), and a payment receipt with transaction hash, USD amount, and receipt ID.","failureModes":["Invalid or malformed base58check string returns ok: false","Non-base58 characters in input cause validation failure","Checksum mismatch results in verification failure","Missing or empty data parameter causes request error","Payment failure (insufficient USDC balance) blocks the call"],"whenToPreferThis":"Use this endpoint when you need to cryptographically verify that a base58check-encoded string (such as a Bitcoin address, WIF key, or other base58check payload) has a valid checksum and to extract its version byte. Prefer this over manual decoding when you need a reliable, programmatic check without implementing the checksum algorithm yourself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T06:44:21.954Z","isFirstParty":false,"canonicalSlug":"base58check-string-verifier-930f35cf"}