MCP servers

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Avalara MCP servers

Avalara Model Context Protocol (MCP) 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. More services will be added over time.

Each MCP server provides both production and sandbox environments so you can build and test AI agent integrations safely before going live.

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.

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.

Need help? or post in our Developer Community

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