MCP servers

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"
    }
  }
}

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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?
validate_address	Validates and resolves addresses to ensure accurate tax jurisdiction determination.	Validate this address: 123 Main Street, Anytown, CA 90210.