India UPI Virtual Payment Address (VPA) Validator
Machine-to-Machine Conformance API ·
upi-vpa-check
$0.000999 / call
20 free calls/day
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Deterministic validation of Indian UPI Virtual Payment Address (VPA / handle) against NPCI guidelines and accredited PSP handle registry (okhdfcbank, okaxis, paytm, ybl, etc.).
Honest Scope Guarantee
Deterministic, offline, explainable — no ML, no scraping. The response's scope field states the exact guarantee.
Quickstart & Execution
curl -X POST https://code402.dev/v1/tools/upi-vpa-check/call \
-H "content-type: application/json" \
-d '{"vpa":"merchant@okhdfcbank"}'No API key needed for the free daily tier. When daily quota exhausts, the endpoint replies with HTTP 402 Payment Required specifying the exact USDC amount. Machines sign an EIP-3009 transfer on Base L2; human engineers buy card credits. Every paid execution returns a cryptographically signed XDR-1 receipt for zero-knowledge audit trails.
Input Parameters
| Field | Type | Meaning & Constraints |
|---|---|---|
vpa (REQUIRED) | string | UPI Virtual Payment Address (e.g. 'merchant@okhdfcbank', '9876543210@paytm') |
Response Format
Deterministic JSON payload fields: tool, valid, normalized, username, handle, accredited_psp, country, reason, scope. Paid responses also carry an offline-verifiable receipt object with Ed25519/EIP-712 digital signatures.
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