{"uid":"cap_RWrFfjJbNwrhU-Hcs7C16","slug":"brasil-dados-api-payment-card-number-validator-luhn-brand-4322cab0","name":"Brasil Dados API – Payment Card Number Validator (Luhn + Brand)","description":"Validate a payment card number format (Luhn + brand). Format only, no account lookup. Timestamped receipt.","url":"https://brasil-dados-api.onrender.com/verify/card/:var1","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","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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_xmO7xQGty3cy9NcTaWm3k","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 a payment card number's format using the Luhn algorithm and detects the card brand, returning a timestamped receipt — no real account lookup performed.","exampleAgentPrompt":"Can you check whether the card number 4111111111111111 is valid — does it pass the Luhn check and what brand is it?","exampleUseCases":null,"resultDescription":"Returns a JSON object indicating whether the card number passes the Luhn checksum, the detected card brand (e.g. Visa, Mastercard, Amex), and a timestamped receipt confirming the validation was performed. No real account or bank lookup is done.","failureModes":["Card number contains non-numeric characters — returns validation error","Card number is too short or too long for any known brand — may return invalid with no brand detected","Missing path parameter var1 — returns 404 or bad request","Service cold-start on Render free tier may cause initial latency spike or timeout"],"whenToPreferThis":"Choose this endpoint when you need a quick, cheap format-level check of a payment card number (Luhn algorithm + brand identification) without triggering any real financial transaction or bank account lookup. Ideal for pre-validation in checkout flows, form validation, or fraud screening pipelines where you only need structural correctness confirmed with a timestamped audit receipt.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:37:55.154Z","isFirstParty":false}