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India GSTIN Format Validation API
x402
India GSTIN Format Validation API is a paid API for AI agents from verifyapi.hillguava.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Validates a GSTIN (Goods and Services Tax Identification Number) by checking its format, extracting the embedded state code, PAN, and entity type, and verifying the Luhn-mod-36 checksum.
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call India business and identity verification: IFSC, pincode, and GSTIN format validation. Powered by x402 — pay in USDC on Base.
Output
Returns a JSON object with the input GSTIN, a boolean `valid` field, the decoded `state` name (e.g. Maharashtra), and `pan_holder_type` (e.g. Firm/LLP), confirming format correctness including the Luhn-mod-36 checksum.
Example use cases
Example prompt
“Can you check if the GSTIN 27AAPFU0939F1ZV is valid and tell me which state it belongs to and what type of entity it is?”
Technical details
Endpoint
GEThttps://verifyapi.hillguava.xyz/verify/gstin-format/%7Bgstin%7DWhen to prefer
Use this endpoint when you need to validate an Indian GSTIN number for format correctness, extract the embedded state and PAN holder type, or perform pre-invoice GST compliance checks without needing live government database lookup. Ideal for lightweight, pay-per-call format validation at $0.005 USDC.
Side effects
- Invalid or malformed GSTIN returns valid=false
- GSTIN with incorrect length or characters returns an error or invalid response
- Non-existent or unrecognized state code returns invalid
- Network/payment failure returns HTTP 402 if USDC payment not provided
- Rate limiting or server errors return 5xx responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"gstin": "27AAPFU0939F1ZV",
"state": "Maharashtra",
"valid": true,
"pan_holder_type": "Firm/LLP"
}
}Tags
x402
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