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India Data Gateway — GSTIN Format Verifier
x402
India Data Gateway — GSTIN Format Verifier is a paid API for AI agents from gateway.hillguava.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Validates the format of a GSTIN (Goods and Services Tax Identification Number) and extracts state and PAN holder type from it
Price / call$0.005
Success—
StatusUnknown
How this service works
The India data layer for AI agents. Pay only for the calls you make — no API keys, no accounts, no minimums, no rate limits. One x402 origin covering Indian weather (forecasts, monsoon), markets (stocks, indices, F&O with Black-Scholes Greeks, historical, mutual funds), RBI macro, identity/format verification (IFSC, pincode, GSTIN), NSE market holidays, panchang (Hindu almanac), and live cricket scores. Settle per call in USDC on Base.
Output
A JSON object indicating whether the GSTIN is validly formatted (true/false), the Indian state it is registered in (e.g. Maharashtra), and the PAN holder type (e.g. Firm/LLP), along with the original GSTIN string.
Example use cases
Vendor onboarding GSTIN validation
“I have a new supplier who gave me their GSTIN 29ABCDE1234F1Z5 — can you check if it's properly formatted and tell me which state they're registered in and what kind of business entity they are?”
Invoice submission format check
“Before I submit this invoice, can you verify that the GSTIN 06BZAHM6385P6Z2 is correctly formatted and let me know the state and entity type it encodes?”
Bulk vendor compliance screening
“We're onboarding a few vendors and I want to validate their GSTINs — can you start by checking 19AAGCR4720D1Z4 and confirm whether it's valid, which Indian state it belongs to, and whether it's a firm, company, or individual?”
Technical details
Endpoint
GEThttps://gateway.hillguava.xyz/verify/gstin-format/%7Bgstin%7DWhen to prefer
Use this endpoint when you need to quickly validate the structural format of an Indian GSTIN and extract encoded metadata (state, entity type) without needing a live registry lookup. Ideal for invoice validation pipelines, vendor onboarding, or compliance checks where no API key setup is desired and pay-per-call USDC pricing is acceptable.
Side effects
- Invalid or malformed GSTIN string returns valid: false with no state or entity type
- Non-existent or random string may return invalid result
- GSTIN with incorrect checksum flagged as invalid
- Missing path parameter results in 404 or error response
- Payment failure via x402 results in 402 response before data is returned
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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