Model Context Protocol (MCP)
You can connect Junie to Model Context Protocol (MCP) servers. This will provide Junie with executable functionality for working with data sources and tools, such as file systems, productivity tools, or databases.
How it works
When running a prompt, Junie analyzes what commands registered with the configured MCP servers as available tools are relevant, and executes them through the respective MCP server.
User approval
By default, Junie asks for user approval before executing the relevant tool. You can authorize Junie to run MCP commands without approval on the Action Allowlist settings page or from Junie's tool window by clicking 
next to the command as Junie executes it.
Add an MCP server
To connect Junie to an MCP server, use the mcp.json file in Junie's settings.
In the IDE settings (Ctrl+Alt+S), go to .
Click
on the toolbar. In the mcp.jsonfile that opens, add one or multiple server configurations in the"mcpServers"key.
For the JSON schema, refer to the documentation of the MCP server you are adding. For example, a configuration that sets up a GitHub MCP server looks as follows:
{ "mcpServers": { "github": { "command": "docker", "args": [ "run", "-i", "--rm", "-e", "GITHUB_PERSONAL_ACCESS_TOKEN", "ghcr.io/github/github-mcp-server" ], "env": { "GITHUB_PERSONAL_ACCESS_TOKEN": "YOUR_GITHUB_PAT" } } } }
Global configuration
The MCP servers added via the MCP Settings page are saved to the ~/.junie/mcp.json file in the home directory. Such servers are available globally for all projects that are opened in the IDE.
Project-level configuration
To configure an MCP server at the project level, add an mcp.json file manually to the .junie/mcpfolder in the project root.
View configured MCP servers
The MCP servers configured at both global and project levels are displayed on the MCP Servers list in (Ctrl+Alt+S) .
To edit a configuration, select it on the list and click 
on the toolbar.
View available tools
Actions that Junie can perform through configured MCP servers are listed as available tools.
To view what tools are available for a specific MCP server, navigate to (Ctrl+Alt+S) , locate the server on the list, and expand the Status drop-down list.
