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Avalara MCP servers

Connect AI agents to Avalara

Model Context Protocol (MCP) servers connect AI applications with Avalara's tax compliance systems in a standardized way — integrate AI-driven tax workflows, automate cross-border compliance, and access Avalara's regularly updated tax content.

OAuth 2.1 · FastMCP-compatible · AvaTax · Returns · E-Invoicing · ECM

How to connect

1
Set up the MCP client

Follow the steps provided on the individual MCP server pages to add the server URL to your client.

2
Authorize access

Your MCP client redirects you to Avalara's secure sign-in. Sign in, review the requested permissions, and grant consent to complete the OAuth flow.

Troubleshooting

Connection failed

Verify your Avalara account status and internet connection.

Permission denied

Make sure 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, and check the rate limit on the server's page.

Need help? Ask the Developer Community or explore the MCP server catalog.

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