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code402 USCC Validator
x402
code402 USCC Validator 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).
Validates a Unified Social Credit Code (USCC) — the Chinese business identifier — using offline deterministic checksum logic, returning validity, reason, and normalized form.
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
Returns a JSON object with: `valid` (boolean indicating whether the USCC passes checksum/format rules), `reason` (human-readable explanation such as 'checksum valid' or specific failure cause), `normalized` (standardized form of the identifier), `country` (jurisdiction, typically CN), `scope` (indicating whether the check was checksum-verifiable or format-only), and `tool` (identifier for the check performed).
Example use cases
KYB check for Chinese supplier
“I'm onboarding a new Chinese supplier and their USCC is 91440300MA5DXXXXX2 — can you verify if that code is legitimate and properly formatted?”
Compliance screening for China entity
“Before we sign this contract, can you validate the USCC '91110105551385082J' for our Chinese counterparty so we know it passes a basic integrity check?”
Batch data-cleaning pipeline spot check
“We have a record in our database with USCC '9132010007345784XH' — can you tell me if the checksum is valid and give me the normalized form?”
Technical details
Endpoint
POSThttps://hcrb.in/v1/tools/uscc-check/call?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, offline, deterministic validation of a Chinese Unified Social Credit Code (USCC) without any ML, scraping, or external registry lookup. Ideal for KYB pipelines, compliance screening, and data-quality checks on Chinese entity identifiers. Prefer this over full registry lookups when you only need to confirm the identifier is structurally valid and properly formed, and want a cheap ($0.005), cryptographically receipted, non-custodial call.
Side effects
- Malformed or empty input returns valid=false with a descriptive reason
- Non-USCC identifiers submitted to this endpoint will return invalid with a format mismatch reason
- Payment failure via x402 will block the call (first 3 calls/day are free)
- Network errors to the endpoint return HTTP-level failures, not a JSON body
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | 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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