Charles-mcp

by heizaheiza · Developer Tools · ★ 329

Charles-mcp is an MCP server by heizaheiza. Charles Proxy MCP server for AI agents with live capture, structured traffic analysis, and agent-friendly tool contracts. It has 329 GitHub stars and ranks #273 of 2217 in Developer Tools by stars.

Category: Developer Tools
Author: heizaheiza
GitHub stars: 329
This week: Tracking since 18 Oct 2026
Language: Python
License: MIT (open source)
Last update: 2026-06-23 (4 months ago)
Links: Source Website PyPI

ai-agent
charles-proxy
codex
developer-tools
mcp
mcp-server
network-debugging
openai

How to install Charles-mcp

Charles-mcp is published on PyPI as charles-mcp, and it depends on mcp. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need uv for uvx.

Add it to Claude Code from a terminal:

claude mcp add Charles-mcp -- uvx charles-mcp

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "Charles-mcp": {
      "command": "uvx",
      "args": [
        "charles-mcp"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm Charles-mcp and its tools are listed. The install guide covers VS Code and Codex.

Also listed in

MCP servers for OpenAI Codex1348

Maintain this project? Get it featured ($99/mo, pinned at the top of Developer Tools) or see what featuring includes.

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Frequently asked questions

What is Charles-mcp?

Charles-mcp is an MCP server by heizaheiza in the Developer Tools category. Charles Proxy MCP server for AI agents with live capture, structured traffic analysis, and agent-friendly tool contracts. It has 329 GitHub stars and ranks #273 of 2217 in Developer Tools by stars. It is written in Python. It is licensed under MIT. It was last updated 4 months ago.

Is Charles-mcp free and open source?

Yes. Charles-mcp is published under the MIT license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

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