Jules MCP Server

An MCP (Model Context Protocol) server that exposes Google Jules Agent operations via FastMCP.

Local serverstdioPython

What is the Jules MCP server?

Jules MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. An MCP (Model Context Protocol) server that exposes Google Jules Agent operations via FastMCP.

What you get

  • get_source(source_id)
  • list_sources(filter_str=None, page_size=None, page_token=None)
  • get_all_sources(filter_str=None)
  • create_session(prompt, source, starting_branch=None, title=None, require_plan_approval=False)
  • get_session(session_id)
  • list_sessions(page_size=None, page_token=None)

Setting it up

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client.

Configuration and credentials

You will need one environment variable: JULES_API_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Choosing this one

Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. It is maintained by CodeAgentBridge; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the jules mcp server does with a few real requests.

Configuration

VariableDescriptionRequired
JULES_API_KEYCredential the server authenticates with.Yes

Frequently asked questions

It connects Jules to MCP-compatible AI assistants such as Claude and Cursor. Instead of copying data back and forth by hand, the assistant works with Jules directly.