AgentTax MCP Server

by agenttax Your server? Claim it

local only

AgentTax runs on your own machine — the client starts it, so there is no endpoint to ping. 83 installs a week from npm. Last commit 3 Nov 2026.

US sales/use tax, nexus thresholds, capital gains and 1099-DA tools for AI agent transactions.

Installs per day peak 574 · avg 26 · +54% w/w

a month agotoday

Installs / week

npm · @agenttax/mcp-server

Stars

2 open issues

3 Nov 2026

Last commit

4 releases in 90 days

MIT

License

JavaScript

Nothing serious here today

Today is the operative word: we check AgentTax every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add agenttax-mcp -- npx -y @agenttax/mcp-server

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "agenttax-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@agenttax/mcp-server"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.agenttax-mcp]
command = "npx"
args = ["-y", "@agenttax/mcp-server"]

.cursor/mcp.json

{
  "mcpServers": {
    "agenttax-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@agenttax/mcp-server"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "agenttax-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@agenttax/mcp-server"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: AGENTTAX_API_KEY (AgentTax API key (free tier at agenttax.io). Optional: without it the server runs in demo mode, 50 calls/day).

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AgentTax — questions

Answers built from our own checks of this server.

Why is there no uptime for AgentTax?

AgentTax runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @agenttax/mcp-server was installed 83 times last week.

How do I connect AgentTax?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @agenttax/mcp-server straight from npm; nothing to host, nothing to sign up for.

How many people use AgentTax?

The npm package @agenttax/mcp-server was installed 83 times in the last week. Week over week that is +54%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is AgentTax open source?

Yes — it is published under the MIT licence, written in JavaScript, 0 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.