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code402 ACI Trust Lookup
x402
code402 ACI Trust Lookup is a paid API for AI agents from hcrb.in, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Performs offline deterministic validation and trust-scoring of business identifiers (IBAN, LEI, VAT, ABA, ISBN, SEDOL, EIN, IFSC, SWIFT/BIC, etc.) and returns a tiered score with signed receipt, paid per call via x402 USDC micropayments.
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: ok (boolean pass/fail), standard (identifier type e.g. ACI-1), subject (the queried identifier), tier (T1/T2/T3 trust level), score_bp (trust score in basis points 0-10000), evidence (supporting detail object), policy_notice, receipt_digest (non-custodial signed proof of the call), and unsettled_exposure_hint_minor (optional exposure amount in minor units). A scope field indicates whether the check was checksum-verifiable or format-only.
Example use cases
Supplier onboarding IBAN verification
“Before we wire payment to this new vendor, can you validate their IBAN GB29NWBK60161331926819 and give me a trust score so I know if the format and checksum actually check out?”
Rental tenant due-diligence check
“I'm about to sign a lease and the landlord gave me their company VAT number DE123456789 — can you do a deterministic trust lookup on it and tell me the tier and any exposure hints?”
Securities identifier validation for trade
“We need to verify SEDOL B0YBKJ7 before booking this trade — can you run an offline trust check on it and return the score in basis points and what standard it belongs to?”
Technical details
Endpoint
POSThttps://hcrb.in/v1/tools/aci-trust-lookup/call?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, deterministic, offline validation of structured business or financial identifiers (IBAN, LEI, VAT, ABA, SWIFT/BIC, EIN, SEDOL, ISBN, IFSC) without relying on ML models or live web scraping. Ideal for KYB onboarding pipelines, pre-trade securities checks, rental due-diligence, and compliance workflows where you need a signed, auditable receipt and a tiered trust score. Prefer this over ML-based or database-lookup services when offline checksum determinism and non-custodial receipts are required.
Side effects
- Invalid or unrecognized identifier format returns ok:false with low score_bp
- Unsupported identifier standard returns an error or unscored result
- Payment failure via x402 blocks the call before processing
- Rate limit exceeded beyond 3 free daily calls without valid payment
- Malformed request body returns HTTP 400
- Network timeout if the endpoint is temporarily unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"required": [
"ok",
"standard",
"subject",
"tier",
"score_bp"
],
"properties": {
"ok": {
"type": "boolean"
},
"tier": {
"type": "string"
},
"subject": {
"type": "string"
},
"evidence": {
"type": "object"
},
"score_bp": {
"type": "number"
},
"standard": {
"type": "string"
},
"policy_notice": {
"type": "string"
},
"receipt_digest": {
"type": "string"
},
"unsettled_exposure_hint_minor": {
"type": "string"
}
}
},
"example": {
"ok": true,
"tier": "T2",
"subject": "0x1111111111111111111111111111111111111111",
"score_bp": 7500,
"standard": "ACI-1",
"unsettled_exposure_hint_minor": "100000000"
}
}Tags
x402
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