{"uid":"cap_2D7b8dociJaF3BCuCwhTH","slug":"polish-regon-number-validator-a9c136f9","name":"Polish REGON Number Validator","description":"Format and checksum validation for IBAN, EU VAT, Polish NIP/REGON/PESEL and email, pay-per-call via x402. Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base.","url":"https://x402-test.crewofthecaptain.com/api/validate/pl-regon?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"value":{"type":"string","maxLength":512}}},"responseSchema":{"type":"json","example":{"type":"pl-regon","valid":true,"reason":"ok","normalized":"…"}},"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_wKzd4OQ6GaR8vGjBbXsL0","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 the format and checksum of a Polish REGON business registry number via pay-per-call micropayment","exampleAgentPrompt":"Can you check whether the REGON number 123456785 is valid for a Polish business I'm onboarding?","exampleUseCases":[{"title":"KYB onboarding for Polish company","prompt":"I'm onboarding a Polish supplier and their REGON is 590096454 — can you verify it's a valid REGON number before I proceed?"},{"title":"E-commerce checkout REGON validation","prompt":"A customer entered 00000001 as their REGON at checkout — is that actually a valid Polish REGON number?"},{"title":"Bulk vendor data cleanup","prompt":"I have a Polish vendor record with REGON 890513031 in our database — check if that's a properly formatted and checksummed REGON so I know whether to flag it for correction."}],"resultDescription":"Returns a JSON object with a 'valid' boolean, a 'type' field set to 'pl-regon', a human-readable 'reason' string (e.g. 'ok' or a description of why it failed), and a 'normalized' version of the REGON string if valid.","failureModes":["Invalid or malformed input string returns valid:false with a reason describing the checksum or format error","Empty or missing 'value' field may return a 400-level error","Payment failure via x402 (insufficient USDC balance) blocks the call with a 402 response","Non-REGON strings (e.g. letters, wrong length) return valid:false with format error reason"],"whenToPreferThis":"Choose this endpoint when you need lightweight, pay-per-use validation of Polish REGON numbers without signing up for a subscription API. It is ideal for agents handling Polish KYB (Know Your Business) workflows, e-commerce checkout validation, or data quality pipelines where REGON correctness is required. At $0.001 per call it is cost-effective for low-to-medium volume spot checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:38:15.096Z","isFirstParty":false,"canonicalSlug":"polish-regon-number-validator-a9c136f9"}