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Supplier Payment Decision Agent – Invoice Verification (x402)
x402
Supplier Payment Decision Agent – Invoice Verification (x402) is a paid API for AI agents from supplier-payment-verifier-production.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-16).
Returns an EXECUTE, REJECT, or FLAG decision on whether an AI agent should pay an Irish supplier invoice, after running CRO, VIES, IBAN, 3-way match, and signature checks.
Price / call$0.005
Success—
StatusUnknown
How this service works
An independent third-party agent that tells your agent whether to pay an Irish supplier invoice: EXECUTE, REJECT or FLAG. CRO, VIES, IBAN, 3-way match and signature checks. From $0.005 per call in USDC on Base (x402). No account.
Output
A structured decision object containing one of three verdicts — EXECUTE, REJECT, or FLAG — along with the individual check results for CRO company registration, VIES VAT number validity, IBAN checksum and format, 3-way match against purchase order and goods receipt, and request signature verification. Each sub-check includes its pass/fail status and relevant details.
Example use cases
Autonomous AP agent invoice approval
“We received an invoice from Murphy Engineering Ltd for €12,500 against PO-2024-0891 — before my accounts-payable agent releases the USDC payment, check the supplier's CRO registration, VAT number IE8765432H, and IBAN IE64BOFI90393812345678, and tell me if this should be executed, rejected, or flagged.”
Detecting fraudulent supplier invoices
“I've got a new invoice from a supplier I haven't paid before — their VAT is IE9988776J and IBAN is IE29AIBK93115298765432. Run a full verification on it and let me know if there's anything suspicious or if we should flag it before paying.”
3-way match check before payment release
“Can you verify invoice INV-5541 from Galway Tech Supplies against our purchase order and the goods receipt we have on file, and confirm whether the 3-way match passes so we can decide whether to execute or hold the payment?”
Technical details
Endpoint
POSThttps://supplier-payment-verifier-production.up.railway.app/v1/verifications/%7Bverification_id%7D?utm_source=zero.xyzWhen to prefer
Use this endpoint when your AI agent needs an independent, auditable third-party decision on whether to pay an Irish supplier invoice — especially when automating accounts payable workflows where you need CRO, VIES VAT, IBAN, 3-way match, and signature checks combined into a single EXECUTE/REJECT/FLAG verdict. Prefer this over rolling your own checks when operating on Base with USDC micropayments via x402, or when you need no-account, per-call verification at $0.005 per call.
Side effects
- Invalid or expired verification_id returns a 404 not found error
- Payment not received (x402 protocol failure) results in 402 Payment Required
- Calling wallet does not match the wallet that initiated the verification — access denied
- VIES service temporarily unavailable causes a degraded result with partial checks
- Malformed IBAN or VAT number causes a validation error before checks begin
- Signature verification fails if the RSA public key was not pre-registered
Tags
x402
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