Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Google Jules MCP Server Create a new coding session to fix the authentication bug in login.js"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
An MCP (Model Context Protocol) server that provides access to the Google Jules API - Google's AI-powered coding agent for automating software development tasks.
This MCP server exposes all Jules API capabilities:
jules_list_sources - List all connected GitHub repositories
jules_get_source - Get details of a specific source
jules_list_sessions - List all coding sessions
jules_get_session - Get session details including state and outputs
jules_create_session - Create a new coding task for Jules
jules_approve_plan - Approve a plan in a session requiring approval
jules_send_message - Send a message to Jules within a session
jules_list_activities - List all activities within a session
jules_get_activity - Get details of a specific activity
Related MCP server: Jules MCP Server
npx google-jules-mcpnpm install -g google-jules-mcp
google-jules-mcpSet your Google Jules API key:
export GOOGLE_JULES_API_KEY=your_api_key_hereAdd to your MCP client configuration (e.g., Claude Desktop):
{
"mcpServers": {
"google-jules": {
"command": "npx",
"args": ["google-jules-mcp"],
"env": {
"GOOGLE_JULES_API_KEY": "your_api_key_here"
}
}
}
}Use jules_list_sources to see all connected GitHub repositories.Use jules_create_session with:
- prompt: "Fix the authentication bug in login.js"
- source: "sources/github/myorg/myrepo"
- startingBranch: "main"
- automationMode: "AUTO_CREATE_PR"Use jules_list_activities with the sessionId to see what Jules is doing.Use jules_send_message to ask Jules questions or provide feedback during a session.To get your Jules API key:
Go to Jules Settings
Create a new API key
Keep it secure - don't share or commit it to public repositories
Node.js 18.0.0 or higher
A Google Jules API key
GitHub repositories connected to Jules (via the Jules web app)
MIT
Approve a plan in a session that requires plan approval. This allows Jules to proceed with executing the plan.
Inputs: sessionId (required).
Create a new Jules session to start a coding task. Jules will work on the task autonomously, optionally creating a PR when done.
Inputs: prompt (required), source (required), startingBranch (required), title, +2 more.
Get details of a specific activity within a session, including artifacts like code changes, bash outputs, or media.
Inputs: sessionId (required), activityId (required).
Get details of a specific session including its state, source context, outputs, and any pull requests created.
Inputs: sessionId (required).
Get details of a specific source by its name. Returns source information including GitHub repo owner, name, branches, and privacy status.
Inputs: name (required).
List all activities within a session. Activities include plan generation, progress updates, messages, and completion status.
Inputs: sessionId (required), pageSize, pageToken.
List all sessions. Sessions are continuous units of work within a specific context. Returns session details including state, outputs, and pull requests.
Inputs: pageSize, pageToken.
List all available sources (GitHub repositories) connected to Jules. Returns a list of sources with their names and GitHub repo details.
Inputs: pageSize, pageToken.
Send a message to Jules within an active session. Use this to provide feedback, ask questions, or request changes.
Inputs: sessionId (required), prompt (required).
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Scored across 9 tools
Each tool has a distinct purpose: session operations, activity tracking, source management, and messaging. There is no overlap, and descriptions clearly differentiate them.
All tools follow a consistent 'jules_verb_noun' pattern in snake_case, making it easy to predict and understand the tool's function from its name.
With 9 tools, the server is well-scoped for its domain. The number is within the ideal range and each tool serves a clear role without redundancy.
The tool set covers session lifecycle, activity details, and source management. Minor gaps like delete operations exist but do not hinder core workflows.
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