{"uid":"cap_QWuBj8gHKfPNErCNsR2Te","slug":"toll402-gstin-validator-c0ed7270","name":"Toll402 GSTIN Validator","description":"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.","url":"https://toll402.dev/v1/t/gstin_validate?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["gstin"],"properties":{"gstin":{"type":"string","description":"15-character GSTIN to validate"}},"additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_k2p6uO0YY0Dy6U9JG6IO4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a 15-character Indian Goods and Services Tax Identification Number (GSTIN) and returns whether it is valid.","exampleAgentPrompt":"Can you check if the GSTIN 27AAPFU0939F1ZV is valid before I process this invoice from an Indian supplier?","exampleUseCases":[{"title":"Vendor onboarding GST compliance check","prompt":"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?"},{"title":"Invoice validation before payment","prompt":"I have an invoice from an Indian company with GSTIN 07AAHCS7114A1Z2 — can you validate that number is legitimate before I approve the payment?"},{"title":"B2B customer GST verification","prompt":"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?"}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T07:12:12.612Z","isFirstParty":false,"canonicalSlug":"toll402-gstin-validator-c0ed7270"}