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Getting Started
Introduction
Authentication
Quickstart
Trial → Production
SDKs
Python (taxql)
Guides
Choosing input mode
Confidence envelope
Error handling
Handling warnings
Historical queries
State-specific notes
Concepts
Components vs combined
Effective dates
How sales tax works (in the US)
Nexus thresholds (Wayfair)
API Reference
Overview
Tax Lookup
Overview
Look up sales tax for an address, ZIP, or coordinates
(Legacy alias) Look up Texas tax — prefer /v1/tax/{state}
Portability — Rates & Orders
Overview
TaxJar-compatible rate lookup (address / decomposed / lat-lng / ZIP)
Compute tax for an order (TaxJar /v2/taxes compatible)
List available product tax categories (TIC)
Portability — Nexus
Overview
Per-state economic-nexus status (Wayfair tracking)
Bulk-import historical transactions for Wayfair tracking
List the calling account's stored nexus registrations
Add (or upsert) a nexus registration
Remove nexus registration(s) for a state
Health
Overview
Liveness probe
Methodology
Changelog
Python SDK — Changelog
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Overview
Health
Section titled “Health”
Liveness probe + version surfacing.
