India Permanent Account Number (PAN) Format Validator
Machine-to-Machine Conformance API ·
pan-format-check
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Deterministic validation of Indian Permanent Account Number (PAN) issued by CBDT / Income Tax Department with 4th-character entity type classification (Individual, Company, Firm, Trust, HUF).
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/pan-format-check/call \
-H "content-type: application/json" \
-d '{"pan":"AAACP1234M"}'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 |
|---|---|---|
pan (REQUIRED) | string | 10-character PAN string (e.g. 'ABCDE1234F') |
Response Format
Deterministic JSON payload fields: tool, valid, normalized, country, entity_code, entity_type, reason, scope. Paid responses also carry an offline-verifiable receipt object with Ed25519/EIP-712 digital signatures.
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