Sales tax rate lookup for production software teams
TaxAutomator gives apps, checkout flows, internal tools, and AI agents a deterministic rate lookup API with ZIP/postal-code support, dated records, and predictable JSON responses.
Built for implementation
- Simple HTTPS endpoint and JSON response body.
- ZIP and postal-code lookup patterns.
- As-of-date records for historical workflows.
- Rate components for checkout and quote flows.
Example request
GET /api/v1/rates?zip=30301&date=2026-06-07
Use the demo endpoint to inspect the response shape before creating a production API key.