{"service":"Sefro","tagline":"US sales tax, settled in one request.","version":"2.0.0","docs":"https://sefro.app","endpoints":{"rates":{"GET /rates?zip=94102":"Lookup rates by ZIP code","GET /rates?state=CA":"State base rate","GET /rates?state=CA&county=Los+Angeles&city=Los+Angeles":"Full jurisdiction lookup","GET /rates/states":"All 51 US state base rates"},"calculate":{"POST /calculate":"Calculate tax on subtotal or line items","GET /calculate/history":"Recent calculation history"},"validate":{"POST /validate/address":"Validate & normalize address, return jurisdiction","GET /validate/zip/:zip":"Validate ZIP code"},"taxability":{"GET /taxability?state=CA&category=saas":"Is a product category taxable in a state?","GET /taxability/categories":"List all product categories","GET /taxability/matrix?state=CA":"Full taxability matrix for a state"},"exemptions":{"POST /exemptions":"Create exemption certificate","GET /exemptions":"List all certificates","GET /exemptions/:id":"Get certificate","PATCH /exemptions/:id":"Update certificate","DELETE /exemptions/:id":"Deactivate certificate"},"admin":{"POST /admin/keys":"Create API key","GET /admin/keys":"List API keys","DELETE /admin/keys/:id":"Deactivate API key","GET /admin/stats":"Dashboard stats"},"import":{"POST /import/bulk":"Bulk upsert jurisdiction data"}},"auth":"Pass X-API-Key header or ?api_key= query param","plans":{"trial":"5-day free trial — 100 req/day, card on file required","starter":"$29/mo — 2,000 req/day","growth":"$49/mo — 12,000 req/day","pro":"$79/mo — 50,000 req/day","scale":"$149/mo — 150,000 req/day","enterprise":"Custom — over 150,000 req/day"}}