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Tax ID Check
x402
Tax ID Check is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Validates the format and checksum of tax/customs identifiers across multiple national schemes (EORI, US EIN/SSN, UK NINO, AU ABN, TR VKN/TCKN, CA BN) without requiring network registration lookup.
Price / call$0.002
Success—
StatusUnknown
How this service works
Offline tax/customs id formats: EORI, US EIN/SSN, UK NINO, AU ABN (checksum), TR VKN/TCKN (checksum), CA BN. kind= selects the scheme. A well-formed id is not proof of registration.
Output
Returns whether the submitted tax ID is well-formed and passes any applicable checksum algorithm for the selected scheme (EORI, EIN, SSN, NINO, ABN, VKN, TCKN, or CA BN). Does NOT confirm the ID is registered or active with any government registry.
Example use cases
KYB onboarding tax ID check
“We're onboarding a new UK business and they gave us NI number AB123456C for their director — can you verify that NINO is correctly formatted before we proceed?”
Australian ABN checksum validation
“Before we submit this supplier's details to our finance system, check whether the ABN 51824753556 has a valid checksum.”
Turkish company VKN verification
“We received a VKN of 1234567890 from a Turkish vendor — can you validate that it's a properly formed Turkish tax number?”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/tax-id-checkWhen to prefer
Choose this endpoint when you need a fast, offline, per-call checksum and format validation of a tax or customs ID without standing up your own validation library. Ideal for KYB/KYC onboarding flows, invoice validation pipelines, or pre-submission checks where you need to cover multiple international schemes (UK, US, AU, TR, CA, EU) in a single unified API with per-call micro-payment pricing and no subscription.
Side effects
- Invalid 'kind' parameter (unsupported scheme) returns an error
- Malformed or empty 'value' returns format failure
- No network connectivity to the endpoint returns HTTP 5xx
- Payment failure via x402 protocol returns 402 Payment Required
- Whitespace or special characters in value may cause unexpected parse failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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