{"uid":"cap_FpO8y99ZRPG373KuFT4ia","slug":"ean-13-barcode-checksum-validator-36ecdd59","name":"EAN-13 Barcode Checksum Validator","description":"Offline deterministic checks (no ML, no scraping) for business identifiers and rental due-diligence, paid per call via x402 (gasless EIP-3009 USDC on Base). Checksum-verifiable (IBAN, LEI, VAT, ABA, ISBN, SEDOL…) vs format-only (EIN, IFSC, SWIFT/BIC…) — every response returns a scope field. Non-custodial, signed receipts. First 3 calls/day free.","url":"https://hcrb.in/v1/tools/ean13-check/call?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"object","required":["code"],"properties":{"code":{"type":"string","description":"13-digit EAN-13 barcode; spaces/dashes allowed."}}}}},"responseSchema":{"type":"json","schema":{"type":"object","required":["valid","reason"],"properties":{"tool":{"type":"string"},"scope":{"type":"string"},"valid":{"type":"boolean"},"reason":{"type":"string"},"country":{"type":"string"},"normalized":{"type":"string"}}},"example":{"valid":true,"reason":"checksum valid"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_VvPMpqe4TwK8KMj1wIYOL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an EAN-13 barcode number using offline deterministic checksum verification, returning validity, reason, and normalized form.","exampleAgentPrompt":"Can you check if this EAN-13 barcode is valid: 5901234123457? I need to know if the checksum passes and what country it's from.","exampleUseCases":[{"title":"Retail product catalog data cleanup","prompt":"I have a list of EAN-13 barcodes from our product catalog and I need to check if 4006381333931 is a legitimate valid barcode before I import it into our system."},{"title":"E-commerce listing barcode check","prompt":"Before I publish this product listing, can you verify that the barcode 0012345678905 is a properly formed EAN-13 with a valid check digit?"},{"title":"Inventory scan error detection","prompt":"Our scanner picked up 9780306406157 — can you confirm whether that's a valid EAN-13 barcode and what country it's associated with?"}],"resultDescription":"Returns a JSON object with: a 'valid' boolean indicating whether the EAN-13 checksum passes, a 'reason' string explaining the result (e.g. 'checksum valid' or specific failure reason), a 'normalized' form of the barcode, a 'country' string if detectable, a 'scope' field indicating whether this is a checksum-verifiable or format-only check, and a 'tool' identifier string.","failureModes":["Invalid or non-EAN-13 input returns valid=false with a descriptive reason","Non-numeric or wrong-length input rejected with reason explaining format issue","Network or payment failure if x402 micropayment is not properly handled","After 3 free daily calls, subsequent calls require USDC payment via x402 protocol"],"whenToPreferThis":"Choose this endpoint when you need a fast, offline, deterministic checksum validation of EAN-13 barcodes without any external database lookups or ML inference. It is ideal for bulk data hygiene, pre-import validation, or any scenario where you need a reliable structural check of a barcode at minimal cost ($0.005/call) with no privacy concerns since no data leaves to third-party enrichment services. Prefer it over scraping-based or registry-lookup validators when deterministic correctness and low latency matter most.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:44:24.196Z","isFirstParty":false,"canonicalSlug":"ean-13-barcode-checksum-validator-36ecdd59"}