Avalara AvaTax REST API
The AvaTax REST API v2 is Avalara's enterprise tax service providing real-time sales tax, use tax, VAT, and GST calculations. It supports tax calculation for transactions, address validation, exemption certificate management, company and nexus configuration, and comprehensive tax content definitions across all US and international jurisdictions. Contact Support: Name: Avalara Developer Relations Email: developer.relations@avalara.com
Overview
Avalara AvaTax REST API is a Postman Collection published by Avalara on the APIs.io network.
The AvaTax REST API v2 is Avalara’s enterprise tax service providing real-time sales tax, use tax, VAT, and GST calculations. It supports tax calculation for transactions, address validation, exemption certificate management, company and nexus configuration, and comprehensive tax content definitions across all US and international jurisdictions. Contact Support: Name: Avalara Developer Relations Email: developer.relations@avalara.com
The collection contains 43 requests organised into 48 folders.
Tagged areas include Taxes.
Requests & Folders
Related API Specs
Work with this as data
Every collection here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for collections
4 MCP tools reach this
find_collectionsBrowse and filter every collection in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/collections/postman-avalara-avatax-rest"
curl "https://apis.io/api/v1/collections?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.