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Jules

v1.0.0•Coding Agents•stable

Unofficial MCP server for Google Jules agent 🐙

julesmcp
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What is Jules?

Jules is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to unofficial mcp server for google jules agent 🐙

Unofficial MCP server for Google Jules agent 🐙

This server falls under the Coding Agents category on MCPgee, the world's largest MCP server directory with 33,000+ servers.

Features

  • Unofficial MCP server for Google Jules agent 🐙

Use Cases

Google Jules agent integration
CodeAgentBridge

Maintainer

LicenseApache-2.0
Languagepython
Versionv1.0.0
UpdatedMay 13, 2026
Statushealthy
Maintenanceactive

Works with

ClaudeOpenAIwindowsmacoslinux
View SourceBrowse All Servers

Installation

Manual Installation

npx jules

Configuration

Configuration Details

Config File

claude_desktop_config.json

Performance

Response Metrics

Response Time< 200ms
ThroughputMedium

Resource Usage

Memory UsageLow
CPU UsageLow

How to Set Up and Use Jules

The Jules MCP server is an unofficial integration that exposes Google's Jules autonomous coding agent to any MCP-compatible AI client, including Claude. It wraps the Jules API with tools for managing code sources, creating and monitoring agent sessions, approving execution plans, and sending messages to running sessions — enabling developers to orchestrate Jules coding tasks directly from their AI assistant without switching to the Jules web interface. It requires Python 3.13+ and a Jules API key.

Prerequisites

  • Python 3.13 or later
  • uv package manager (recommended) or pip
  • A Google Jules API key (JULES_API_KEY)
  • An MCP-compatible client such as Claude Desktop or Claude Code
1

Clone the repository

Clone the jules-mcp-server repository to your local machine.

git clone https://github.com/CodeAgentBridge/jules-mcp-server
cd jules-mcp-server
2

Install dependencies

Install the project using uv (recommended) or pip in editable mode.

# With uv (recommended)
uv sync

# Or with pip
pip install -e .
3

Set your Jules API key

Export your Jules API key as an environment variable. The SDK reads JULES_API_KEY automatically.

# Bash/Zsh
export JULES_API_KEY="your_api_key_here"

# PowerShell
$Env:JULES_API_KEY = "your_api_key_here"
4

Run the server to verify it starts

Test that the server launches correctly using the fastmcp entry point.

uv run fastmcp run jules_mcp/jules_mcp.py:mcp
# or
python -m jules_mcp
5

Add to Claude Desktop configuration

Register the server in Claude Desktop's config file, passing the API key as an environment variable.

{
  "mcpServers": {
    "jules": {
      "command": "uv",
      "args": ["run", "--directory", "/path/to/jules-mcp-server", "fastmcp", "run", "jules_mcp/jules_mcp.py:mcp"],
      "env": {
        "JULES_API_KEY": "your_api_key_here"
      }
    }
  }
}

Jules Examples

Client configuration

Claude Desktop JSON configuration for the Jules MCP server using uv.

{
  "mcpServers": {
    "jules": {
      "command": "uv",
      "args": [
        "run",
        "--directory", "/path/to/jules-mcp-server",
        "fastmcp", "run", "jules_mcp/jules_mcp.py:mcp"
      ],
      "env": {
        "JULES_API_KEY": "your_jules_api_key"
      }
    }
  }
}

Prompts to try

Example prompts for interacting with Google Jules sessions via the MCP server.

- "List all available Jules sources"
- "Create a Jules session for source 'sources/abc123' with the prompt: analyze the codebase and identify potential performance bottlenecks"
- "Show me all active Jules sessions"
- "Approve the execution plan for Jules session 'sessions/xyz789'"
- "Send a message to Jules session 'sessions/xyz789': please also add unit tests for the changes you made"
- "Wait for Jules session 'sessions/xyz789' to complete and show me the results"

Troubleshooting Jules

Python version error — requires Python 3.13+

This server requires Python 3.13 or later. Check your version with 'python --version'. Install Python 3.13+ from python.org or use pyenv: 'pyenv install 3.13.0 && pyenv local 3.13.0'. With uv, run 'uv python install 3.13' then 'uv sync'.

JULES_API_KEY not found or authentication fails

Ensure the JULES_API_KEY environment variable is set in the env block of your MCP client config, not just in your shell profile (shell env vars are not automatically inherited by MCP clients). Verify the key is valid by testing it directly with the Jules API documentation.

uv command not found

Install uv with the official installer: 'curl -LsSf https://astral.sh/uv/install.sh | sh' (macOS/Linux) or 'powershell -c irm https://astral.sh/uv/install.ps1 | iex' (Windows). Alternatively, use 'pip install -e .' and replace the uv run command with 'python -m jules_mcp' in your config.

Frequently Asked Questions about Jules

What is Jules?

Jules is a Model Context Protocol (MCP) server that unofficial mcp server for google jules agent 🐙 It connects AI assistants to external tools and data sources through a standardized interface.

How do I install Jules?

Follow the installation instructions on the Jules GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.

Which AI clients work with Jules?

Jules works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.

Is Jules free to use?

Yes, Jules is open source and available under the Apache-2.0 license. You can use it freely in both personal and commercial projects.

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Quick Config Preview

{ "mcpServers": { "jules": { "command": "npx", "args": ["-y", "jules"] } } }

Add this to your claude_desktop_config.json or .cursor/mcp.json

Read the full setup guide →

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