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code402 Assured Quote – Business Identifier Validation
x402
code402 Assured Quote – Business Identifier Validation is a paid API for AI agents from hcrb.in, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Performs offline, deterministic checksum and format validation of business/financial identifiers (IBAN, LEI, VAT, ABA, ISBN, SEDOL, EIN, IFSC, SWIFT/BIC, etc.), paid per call via x402 USDC micropayment.
Price / call$0.005
Success—
StatusUnknown
How this service works
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.
Output
A JSON object containing: `valid` (boolean indicating whether the identifier passes validation), `reason` (human-readable explanation such as 'checksum valid' or 'invalid checksum'), `scope` (indicating whether this was a full checksum-verifiable check or format-only), `normalized` (the identifier in canonical form), `country` (country code if applicable), and `tool` (which validator was used).
Example use cases
IBAN checksum verification before wire
“Before I send this international wire, can you check if IBAN DE89370400440532013000 is valid and tell me the country it belongs to?”
LEI code validation for KYC workflow
“I need to verify this LEI code — 2594007XIACKNMUAW223 — is properly formatted and passes checksum before I submit the KYC filing.”
VAT number check for invoice compliance
“Can you validate this EU VAT number — FR83404833048 — and confirm whether it passes the checksum so I know it's safe to put on the invoice?”
Technical details
Endpoint
POSThttps://hcrb.in/v1/tools/assured-quote/call?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need fast, offline, deterministic validation of a specific business or financial identifier (IBAN, LEI, VAT, SWIFT/BIC, ABA, EIN, IFSC, ISBN, SEDOL, etc.) without relying on external registries or ML models. Ideal for compliance pipelines, KYC workflows, invoice validation, and due-diligence automation where you need a signed, auditable receipt and the cost per call ($0.005 USDC) is acceptable. Use over general-purpose validation libraries when you need the `scope` field to distinguish checksum-verifiable from format-only results, or when signed receipts are required for audit trails.
Side effects
- Identifier type not supported — returns error or format-only scope
- Malformed input with unrecognizable structure — returns valid:false with a reason
- Payment not received — x402 micropayment rejected before response is returned
- Network timeout — endpoint unreachable
- Free tier (3/day) exhausted without payment — returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"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"
}
}Tags
x402
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