{"uid":"cap_e2tg0UVjzv11fNnwxMhWL","slug":"sindri-checksum-identifier-generator-168a85c3","name":"Sindri Checksum Identifier Generator","description":"Checksummed-identifier-format generator API. Generates a structurally valid isbn, upc, vin, or imei, each computed with its real check-digit algorithm. vin and imei take no arguments. Accepts optional locale (default en_US).","url":"https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/generateChecksumFormat?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"args":{"type":"object","description":"Method-specific options, e.g. {\"variant\":13} for isbn. Not accepted for vin/imei."},"field":{"enum":["isbn","upc","vin","imei"],"type":"string","description":"Which checksummed identifier format to generate."},"locale":{"type":"string","default":"en_US","description":"Locale code, e.g. \"en_US\", \"de\"."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_V62wj-dESs2Z0b9SYfAq2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates structurally valid checksummed identifiers (ISBN, UPC, VIN, IMEI) using each format's real check-digit algorithm","exampleAgentPrompt":"Generate a valid ISBN-13 for me — I need a structurally correct one with a proper check digit for testing my book catalog system.","exampleUseCases":[{"title":"Test data seeding for e-commerce","prompt":"I need a valid UPC barcode number with a correct check digit to seed my test product database — can you generate one?"},{"title":"Automotive software testing","prompt":"Generate a valid VIN number for me to use in my vehicle management system's test suite."},{"title":"Mobile device registry testing","prompt":"I need a structurally valid IMEI number with a real check digit for testing my device registration API — can you create one?"}],"resultDescription":"Returns a structurally valid, checksummed identifier string for the requested format (ISBN, UPC, VIN, or IMEI), computed using each format's authentic check-digit algorithm. The generated value passes real validation checks for its respective format.","failureModes":["Invalid field value (not isbn/upc/vin/imei) returns an error","Passing args to vin or imei (which accept no arguments) may return an error","Invalid locale format may produce unexpected results","Network timeout from Lambda cold start"],"whenToPreferThis":"Choose this endpoint when you need test or dummy identifiers that are structurally valid and pass checksum validation — not just random numbers. Ideal for seeding test databases, mocking APIs, or generating realistic sample data. Unlike random number generators, this endpoint applies the real check-digit algorithm so the output passes format validation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:52:37.117Z","isFirstParty":false,"canonicalSlug":"sindri-checksum-identifier-generator-168a85c3"}