{"uid":"cap_8ynxw-oOsJrCF13B0gstw","slug":"gateway-apiosk-com-financial-identifiers-card-validator-7602add2","name":"gateway.apiosk.com Financial Identifiers Card Validator","description":"Validate a payment card number with Luhn and classify the network from bundled static BIN range rules.","url":"https://gateway.apiosk.com/financial-identifiers/validate/card","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_dBicotmAK7fj3o2d7fQPa","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 credit/debit card number and returns the BIN, brand, last 4 digits, and validity status","exampleAgentPrompt":"Can you validate this card number for me — 4111111111111111 — and tell me whether it's valid, what brand it is, and what the BIN is?","exampleUseCases":[{"title":"Verify card before checkout","prompt":"Before I charge the customer, can you quickly check if this card number 5500005555555559 is valid and tell me the brand and BIN so I know it's safe to proceed?"},{"title":"Flag invalid cards in fraud screening","prompt":"I'm reviewing a batch of card numbers from recent signups and need to know which ones fail validation — can you check 4000000000000002 and tell me if it passes the Luhn check, what brand it is, and pull the BIN for me?"},{"title":"Identify card brand from number","prompt":"A user just entered their card number 378282246310005 in our form but didn't select a card type — can you tell me whether this is a Visa, Mastercard, Amex, or something else, and confirm it's a valid number?"}],"resultDescription":"Returns a JSON object with ok status, the BIN (first 6-8 digits), card brand (e.g. visa, mastercard), last 4 digits of the card, and a boolean valid flag indicating whether the card number passes validation.","failureModes":["Invalid or malformed card number returns valid: false","Missing card field in request body causes a 400 or error response","Non-numeric characters in card number may cause parsing errors","Very short or truncated card numbers may not resolve a BIN"],"whenToPreferThis":"Use this endpoint when you need to validate a payment card number before processing or storing it, identify the card brand and BIN programmatically, or verify card format in a checkout or fraud-screening workflow. It is a simple, low-cost per-call service ideal for real-time card validation at $0.02 USDC per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:59:14.254Z","isFirstParty":false}