{"uid":"cap_ytDwkazG8KPHD9fsf2Yb0","slug":"code402-abn-validator-be807c05","name":"code402 ABN 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/abn-check/call?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"object","required":["abn"],"properties":{"abn":{"type":"string","description":"11-digit Australian Business Number; spaces 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_7oo76UYE84jeo0PqoSPGM","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 Australian Business Number (ABN) using offline deterministic checksum verification, returning validity, reason, and normalized form.","exampleAgentPrompt":"Can you check whether ABN 51 824 753 556 is valid and correctly formatted?","exampleUseCases":[{"title":"Supplier onboarding ABN check","prompt":"Before I add this new Australian supplier to our system, can you verify that their ABN — 83 914 571 673 — is valid and passes the checksum?"},{"title":"Invoice validation for accounts payable","prompt":"We received an invoice from an Australian vendor with ABN 11 004 044 937 — can you confirm it's a real, valid ABN before we process payment?"},{"title":"Rental tenant business verification","prompt":"A tenant applying for a commercial lease gave me their ABN as 26 154 482 283 — can you do a quick deterministic check to see if it's valid?"}],"resultDescription":"A JSON object with: `valid` (boolean indicating checksum pass/fail), `reason` (human-readable explanation such as 'checksum valid' or specific failure reason), `scope` (indicating whether validation is checksum-level or format-only), `normalized` (canonically formatted ABN string), `country` (AU), and `tool` (identifier for the specific check performed).","failureModes":["Invalid or malformed ABN input returns valid:false with a descriptive reason","Non-ABN identifier passed to the endpoint may return an error or format rejection","After 3 free daily calls, payment via x402/USDC on Base is required — missing payment header results in 402 response","Network or server errors may return non-JSON HTTP error responses"],"whenToPreferThis":"Choose this endpoint when you need fast, offline, deterministic ABN validation with no dependency on external registries or ML models — ideal for real-time onboarding flows, invoice processing, or compliance checks where you need a verifiable, signed receipt of the validation result. Prefer it over web-scraping or ASIC registry lookups when you only need format/checksum correctness and want per-call micropayment billing without a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:31:21.447Z","isFirstParty":false,"canonicalSlug":"code402-abn-validator-be807c05"}