Endpoints

The FastGST Tax Lookup API exposes REST endpoints across HSN and SAC with consistent authentication, request/response format, and error handling.

HSN:

• GET /search/hsn
• GET /search/hsn/{code}
• GET /search/hsn/{code}/taxes

SAC:

• GET /search/sac
• GET /search/sac/{code}
• GET /search/sac/{code}/taxes