How do I install Avalara Returns?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Avalara Returns need an API key?

No required environment variable is listed on this record.

What transport does Avalara Returns use?

Avalara Returns is reached over HTTP.

When was Avalara Returns last checked?

Last checked 2026-10-18. Provides access to Avalara Global Returns API for tax returns, filing calendars, and compliance data

Avalara Returns MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://mcp.avalara.com/returns

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http com.avalara-returns https://mcp.avalara.com/returns

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "com.avalara-returns": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://mcp.avalara.com/returns"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version: 1.0.1
Last checked

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

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

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.

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Avalara Returns?

Does Avalara Returns need an API key?

What transport does Avalara Returns use?

When was Avalara Returns last checked?

Documentation

Avalara

Avalara MCP Servers

What you can do:

Getting Started with Avalara MCP Servers

Prerequisites

How to connect:

Available MCP Servers

Troubleshooting common issues: