# AvaTax — MCP | Avalara Developer

Source: https://developer.avalara.com/products/avatax/mcp/

## Avalara AvaTax MCP server

## Overview

Provides access to the Avalara AvaTax API for tax calculation, transaction management, nexus handling, and compliance data.

## MCP client setup

### Cursor

#### Install MCP Server

Add the Avalara AvaTax MCP server to your IDE

Or manually add to your MCP settings:

{
  "mcpServers": {
    "avalara-avatax": {
      "type": "http",
      "url": "https://mcp.avalara.com/avatax"
    }
  }
}

View Cursor MCP server documentation [Link](https://cursor.com/docs/mcp)

## Tools

Name

Description

Sample prompt

calculate\_tax

Creates a tax transaction and calculates tax based on provided data, including addresses, line items, and transaction details.

Calculate tax for a $100 sale to a customer in California with shipping address 123 Main St, Los Angeles, CA 90210.

get\_transaction

Retrieves details of a specific transaction by transaction code and company code.

Get transaction details for transaction code {transaction\_code} for company {company\_code}.

get\_transactions

Retrieves a list of transactions for a specific company, using filters to search.

Show me all transactions for company {company\_code} from last month.

get\_nexus\_definitions

Retrieves nexus definitions so you can determine tax obligations across jurisdictions.

What are the nexus requirements for sales tax in Texas?

get\_nexus

Retrieves company-specific nexus information and related tax registration details.

Show me all tax registrations for my company.

create\_nexus

Creates nexus records to establish tax obligations in jurisdictions.

Register company {company\_code} for state-level sales tax in New York.

get\_companies

Retrieves company information, with filters to narrow results to specific companies.

Show me details for all companies in my AvaTax account.

get\_tax\_code\_definitions

Retrieves tax code definitions for available tax categories and rates.

What tax codes are available for software products?

get\_tax\_code\_recommendations

Provides AI-powered tax code recommendations for products. Returns 1 to 3 ranked tax code suggestions with confidence levels based on product description and optional inputs such as category, itemType, or UPC.

Recommend tax codes for a steel mug sold as kitchen drinkware.

validate\_address

Validates and resolves addresses to ensure accurate tax jurisdiction determination.

Validate this address: 123 Main Street, Anytown, CA 90210.