--- title: "Avalara MCP Server: Claude Setup | SourceMedium" description: "Avalara runs MCP servers at mcp.avalara.com for AvaTax, Returns, exemption certificates, and e-invoicing: calculate tax, add nexus, manage certificates." url: "https://sourcemedium.com/mcp-directory/avalara/" type: static generatedAt: "2026-09-29T01:21:01.000Z" --- [MCP Directory](https://sourcemedium.com/mcp-directory/) Payments and finance Official # Avalara MCP server Remote endpoint mcp.avalara.com/avatax. Checked September 2026. Four Avalara servers at mcp.avalara.com split the work by product. AvaTax calculates tax, records the transaction, and reads companies, nexus, and tax codes; Exemption Certificate Management reads and creates certificates and exempt customers; Returns reads filing calendars, liability reports, and filings and can approve a filing; E-Invoicing reads document statuses and has no write tools. ## Avalara MCP options Every fact in a row comes from the publisher's own documentation. | Option | Audience | Reads or changes | Sign-in | Setup | | --- | --- | --- | --- | --- | | Avalara AvaTax MCP server `https://mcp.avalara.com/avatax` Avalara [Registered as com.avalara/avatax](https://registry.modelcontextprotocol.io/?q=com.avalara%2Favatax) | Merchants | Calculates tax and records the transaction, reads transactions, companies, nexus, and tax code definitions, recommends tax codes, and validates addresses; it can also create nexus records. Can write | OAuth sign-in | [Setup guide →](https://developer.avalara.com/mcp-servers/avatax/) | | Avalara Exemption Certificate Management MCP server `https://mcp.avalara.com/ecm` Avalara | Merchants | Reads exemption certificates, exempt customers, exposure zones, and exemption reasons and downloads certificate images; it can create and update certificates and customers, upload certificate images, link customers to certificates, and send certificate requests. Can write | OAuth sign-in | [Setup guide →](https://developer.avalara.com/mcp-servers/exemption-certificate-management/) | | Avalara Returns MCP server `https://mcp.avalara.com/returns` Avalara [Registered as com.avalara/returns](https://registry.modelcontextprotocol.io/?q=com.avalara%2Freturns) | Developers | Reads filing calendars, suggested tax forms, liability reports, and filings for one selected returns domain (US, VAT, property tax, MyLodge, or excise); it can create companies and filing calendar requests, approve filings, and, for MyLodge and excise, create, adjust, or delete transactions. Can write | API key or token | [Setup guide →](https://developer.avalara.com/mcp-servers/returns/) | | Avalara E-Invoicing and Live Reporting MCP server `https://mcp.avalara.com/elr` Avalara [Registered as com.avalara/elr](https://registry.modelcontextprotocol.io/?q=com.avalara%2Felr) | Merchants | Reads e-invoice document statuses and lifecycle events, downloads submitted documents, explains failed submissions, searches the trading partner directory, and searches the company's own e-invoicing documents; no write tools are listed. Read only | OAuth sign-in | [Setup guide →](https://developer.avalara.com/mcp-servers/E-Invoicing/) | ## Connect Avalara to your assistant Each card lists the servers whose setup guide covers that assistant. ### Connect Avalara to Claude - [Avalara AvaTax MCP server →](https://developer.avalara.com/mcp-servers/avatax/) Guide covers Claude Code Claude Code ``` claude mcp add --transport http avalara https://mcp.avalara.com/avatax ``` - [Avalara Exemption Certificate Management MCP server →](https://developer.avalara.com/mcp-servers/exemption-certificate-management/) Guide covers Claude Code Claude Code ``` claude mcp add --transport http avalara https://mcp.avalara.com/ecm ``` - [Avalara Returns MCP server →](https://developer.avalara.com/mcp-servers/returns/) Guide covers Claude Code - [Avalara E-Invoicing and Live Reporting MCP server →](https://developer.avalara.com/mcp-servers/E-Invoicing/) Guide covers Claude Code Claude Code ``` claude mcp add --transport http avalara https://mcp.avalara.com/elr ``` ### Connect Avalara to Cursor - [Avalara AvaTax MCP server →](https://developer.avalara.com/mcp-servers/avatax/) .cursor/mcp.json ``` {"mcpServers":{"avalara":{"url":"https://mcp.avalara.com/avatax"}}} ``` - [Avalara Exemption Certificate Management MCP server →](https://developer.avalara.com/mcp-servers/exemption-certificate-management/) .cursor/mcp.json ``` {"mcpServers":{"avalara":{"url":"https://mcp.avalara.com/ecm"}}} ``` - [Avalara Returns MCP server →](https://developer.avalara.com/mcp-servers/returns/) - [Avalara E-Invoicing and Live Reporting MCP server →](https://developer.avalara.com/mcp-servers/E-Invoicing/) .cursor/mcp.json ``` {"mcpServers":{"avalara":{"url":"https://mcp.avalara.com/elr"}}} ``` ### Connect Avalara to VS Code - [Avalara AvaTax MCP server →](https://developer.avalara.com/mcp-servers/avatax/) .vscode/mcp.json ``` {"servers":{"avalara":{"type":"http","url":"https://mcp.avalara.com/avatax"}}} ``` - [Avalara Exemption Certificate Management MCP server →](https://developer.avalara.com/mcp-servers/exemption-certificate-management/) .vscode/mcp.json ``` {"servers":{"avalara":{"type":"http","url":"https://mcp.avalara.com/ecm"}}} ``` - [Avalara Returns MCP server →](https://developer.avalara.com/mcp-servers/returns/) - [Avalara E-Invoicing and Live Reporting MCP server →](https://developer.avalara.com/mcp-servers/E-Invoicing/) .vscode/mcp.json ``` {"servers":{"avalara":{"type":"http","url":"https://mcp.avalara.com/elr"}}} ``` ## Other ways to reach Avalara data - [AvaTax REST API reference →](https://developer.avalara.com/products/avatax/api/) - [Avalara Avi Agent (Agent-to-Agent API) →](https://developer.avalara.com/avi-agent/) ## One MCP server per tool still can't answer a cross-channel question. Each server brings its own sign-in, its own definition of revenue, and data your assistant can't join to the rest. SourceMedium connects 63 commerce and marketing sources, keeps one set of maintained definitions, and gives ChatGPT, Claude, and other assistants a single connection to all of it. Avalara is not a SourceMedium source today. ## More in Payments and finance - [Bill.com MCP server →](https://sourcemedium.com/mcp-directory/billcom/) - [Brex MCP server →](https://sourcemedium.com/mcp-directory/brex/) - [Mercury MCP server →](https://sourcemedium.com/mcp-directory/mercury/)