> This page is for MCPs, version MCP servers.
> For other versions, use one of these documentation indexes:
> - Overview (default): https://avalara.ferndocs.com/mcp/overview/llms.txt
> - MCP servers: https://avalara.ferndocs.com/mcp/mcp-servers/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://avalara.ferndocs.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://avalara.ferndocs.com/_mcp/server.

# MCP servers

To connect to Avalara MCP servers, you need:

* **Avalara subscription** — an active Avalara account.
* **An AI client** — programmatic clients built with FastMCP or any MCP client library that supports OAuth 2.1 authorization.
* **A modern web browser** — required for the OAuth 2.1 authorization flow.

#### [Avalara E-Invoicing and Live Reporting](/mcp/mcp-servers/e-invoicing)

Connect the Avalara E-Invoicing and Live Reporting MCP server.

#### [Avalara Tax Content](/mcp/mcp-servers/tax-content)

Connect the Avalara Tax Content MCP server.

#### [AvaTax](/mcp/mcp-servers/avatax)

Connect the AvaTax MCP server.

#### [Classification](/mcp/mcp-servers/classification)

Connect the Classification MCP server.

#### [Communications](/mcp/mcp-servers/communications)

Connect the Communications MCP server.

#### [Cross-Border](/mcp/mcp-servers/cross-border)

Connect the Cross-Border MCP server.

#### [Dev Documentation](/mcp/mcp-servers/dev-documentation)

Connect the Dev Documentation MCP server.

#### [Exemption Certificate Management](/mcp/mcp-servers/ecm)

Connect the Exemption Certificate Management MCP server.

#### [Returns](/mcp/mcp-servers/returns)

Connect the Returns MCP server.

#### [Tax Registrations and Business Licenses](/mcp/mcp-servers/tax-registrations)

Connect the Tax Registrations and Business Licenses MCP server.