{"uid":"cap_U-ZYb_sCmwGT30KXZIe5H","slug":"chainverdict-iban-validator-cc5dcfce","name":"ChainVerdict IBAN Validator","description":"Validate an IBAN structurally: country length rules, character set and the ISO 7064 mod-97 check. Deterministic. A structurally valid IBAN is not proof the account exists, is open, or belongs to the party you are paying.","url":"https://chainverdict.xyz/v1/validate/iban/%3Aiban?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"},"pathParams":{"type":"object","required":["iban"],"properties":{"iban":{"type":"string","description":"IBAN incl. country prefix"}}},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","additionalProperties":true}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_h9e4vleTPyl9Y7ogLLX1j","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an IBAN string structurally using country-specific length rules, character set checks, and the ISO 7064 mod-97 checksum algorithm.","exampleAgentPrompt":"Can you check whether the IBAN GB29NWBK60161331926819 is structurally valid — correct format, right length for the country, and passes the mod-97 checksum?","exampleUseCases":[{"title":"Pre-payment IBAN sanity check","prompt":"Before I send this wire transfer, can you validate that the IBAN DE89370400440532013000 is correctly formatted and passes the checksum — I want to catch any typos before it goes out."},{"title":"User-submitted form data validation","prompt":"A customer just entered the IBAN FR7630006000011234567890189 in our checkout form — can you verify it's structurally valid so we don't reject their payment unnecessarily?"},{"title":"Bulk invoice IBAN audit","prompt":"I have an IBAN from a vendor invoice: NL91ABNA0417164300 — can you check if it's a valid IBAN with the correct Dutch format and mod-97 checksum before I approve the payment run?"}],"resultDescription":"Returns a structured validation result indicating whether the IBAN passes all structural checks: country-specific length rules, allowed character set, and the ISO 7064 mod-97 check digit calculation. Does not confirm whether the account exists or is active.","failureModes":["Malformed or missing IBAN path parameter returns an error","IBAN with invalid country prefix fails country-length lookup","IBANs that are structurally valid but belong to non-existent accounts are still reported as valid","Network or payment failure returns HTTP 402 if x402 payment is not completed","Very long or unexpected input strings may return a parse error"],"whenToPreferThis":"Use this endpoint when you need a fast, deterministic, zero-dependency structural IBAN check before initiating a payment or onboarding a bank account. It is ideal for pre-validation in payment flows, form validation, and compliance pipelines where you want to catch formatting errors early. It does not perform live bank account lookups, so pair it with a live account verification service if account existence must be confirmed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:41:08.911Z","isFirstParty":false,"canonicalSlug":"chainverdict-iban-validator-3ddd93d2"}