Official SDKs

Call the API from your server with the official Node.js or Python SDK. Both support calculations, transactions, adjustments, batches, and coverage checks.

Node.js and TypeScript

Node.js 18 or newer. TypeScript declarations are included.

npm install salestax-nodePackage ↗

Source code and examples ↗

Python

Python 3.10 or newer. Use the sync client or optional async client.

pip install salestax-pythonPackage ↗

Source code and examples ↗

Keep the key on your server

Both clients read SALESTAX_API_KEY from the server environment by default. Keep it out of browser code and mobile apps.

Read the authentication guide

Loading page