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Toll402 GSTIN Validator
x402
Toll402 GSTIN Validator is a paid API for AI agents from toll402.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Validates a 15-character Indian Goods and Services Tax Identification Number (GSTIN) and returns whether it is valid.
Price / call$0.001
Success—
StatusUnknown
How this service works
The OpenRouter for AI-agent tools: one gateway, one wallet, every capability. Built-in tools, forged tools, a global verified business directory and 2,000+ aggregated x402 services, all paid per call in USDC via x402 (HTTP 402). No signup, no API key.
Output
Returns a JSON object with an 'ok' boolean field indicating whether the provided GSTIN is valid. A true value means the GSTIN passed validation; false indicates it is invalid or improperly formatted.
Example use cases
Vendor onboarding GST compliance check
“Before we add this new Indian vendor to our system, can you verify their GSTIN 29AABCT1332L1ZF to make sure it's a valid registered GST number?”
Invoice validation before payment
“I have an invoice from an Indian company with GSTIN 07AAHCS7114A1Z2 — can you validate that number is legitimate before I approve the payment?”
B2B customer GST verification
“A new business customer in India gave us their GST number 33AAKFK2977L1ZQ — can you confirm it's a valid GSTIN so we can issue them a proper tax invoice?”
Technical details
Endpoint
POSThttps://toll402.dev/v1/t/gstin_validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to validate Indian GST Identification Numbers as part of vendor onboarding, invoice processing, or B2B compliance workflows. It is a low-cost ($0.001 USDC), no-signup, per-call service suitable for AI agents that need programmatic, on-demand GSTIN verification without managing API keys or subscriptions. Prefer this over manual lookups or building your own GSTIN regex validator when you need authoritative validation beyond format checking.
Side effects
- Invalid or malformed GSTIN format returns ok: false
- Missing required 'gstin' field in request body causes schema validation error
- Non-15-character strings likely return validation failure
- Service unavailability may return HTTP error codes
- Invalid payment or insufficient USDC balance blocks the request via x402 payment protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true
}
}Tags
x402
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