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MCP servers

AvaTax MCP server

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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

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.