Avalara
This is a non-community repo, created and maintained by Avalara
Avalara MCP Servers
MCP (Model Context Protocol) servers connect AI applications with Avalara's tax compliance systems in a standardized way. MCP servers allow partners and developers to integrate AI-driven tax workflows, automate cross-border compliance, and access Avalara's regularly updated tax content.
Avalara-supported MCP servers include AvaTax, Returns, E-Invoicing and Live Reporting, Tax Registrations and Business Licenses and Exemption Certificate Management, Cross Border Trade, and Tax Content. More services will be added over time.
What you can do:
- Query real-time tax rates and calculations
- Access compliance monitoring and regulatory updates
- Manage exemption certificates, business licenses, and returns
- Retrieve documentation and guidance
Getting Started with Avalara MCP Servers
Learn how to set up and connect to Avalara Model Context Protocol (MCP) servers for AI-powered tax compliance integration.
Prerequisites
To connect to Avalara MCP servers, you need to have:
- Avalara subscription: You must have an active Avalara account
- An AI client: Programmatic clients built using FastMCP or any other MCP-compatible library.
- A modern web browser: Required for the OAuth 2.1 authorization flow.
How to connect:
Step 1: Set up the MCP client Follow the steps provided on the individual MCP server pages.
Step 2: Authorize access
- When prompted, your MCP client redirects you to Avalara's secure sign in page
- Sign in with your Avalara credentials
- Review the permissions requested by the client for access to specific MCP server capabilities
- Grant consent to complete the OAuth flow
Available MCP Servers
| Server | Description | Install |
|---|---|---|
| Avalara AvaTax MCP server | Provides access to the Avalara AvaTax API for tax calculation, transaction management, nexus handling, and compliance data. | |
| Avalara Returns MCP server | Provides access to the Avalara Global Returns API for tax returns management, filing calendars, and compliance data. | |
| Avalara Tax Registrations and Business License MCP server | Provides access to Avalara Tax Registration and Business Licenses APIs for license guidance, sales and payroll tax registrations, questionnaire management, and business activity validation. | |
| Avalara E-Invoicing & Live Reporting MCP server | Provides access to Avalara E-Invoicing and Live Reporting APIs for retrieving document statuses, downloading compliant documents, and managing compliance across jurisdictions. | |
| Avalara Exemption Certificates Management MCP server | Provides access to the Avalara Exemption Certificate Management API for managing certificates, customer profiles, and company data. | |
| Avalara Cross-Border Trade Services MCP server | The Cross-Border Trade Services MCP server supports AI agents by providing tools to perform cross-border transactions, including duty calculations, and access to Trade and Tariff content libraries (including import trade restrictions). | |
| Avalara Tax Content MCP server | Provides access to Avalara Tax Content (ATC) data, including Transaction Tax Export (TTE) Configurations, Jobs, Communications and User Defined Functions for Lodging and Autorental. | |
| Avalara Communications MCP server | Provides access to Avalara Communications tax calculation services, supporting taxes for voice, data, VoIP, and messaging transactions. It also provides reference data including tax types, jurisdiction codes, and location information. | |
| Avalara Dev Documentation MCP server | Provides access to Avalara developer documentation and integration guides, including technical documentation, product information, how-to guides, and code examples. | |
| Avalara Classification MCP server | Provides Harmonized System (HS) code classification for cross-border transactions. Supports managed classification requests, HS code validation and verification, and AI-powered import and export, and enriched trade compliance content lookup. |
Troubleshooting common issues:
- Connection failed: Verify your Avalara account status and internet connection.
- Permission denied: Make ensure your account has access to the requested services.
- HTTP 429 (Too Many Requests): You've exceeded the server's rate limit.
- Wait a few minutes before retrying.
- Check the server's rate limit details on its individual page.
