Firebase MCP Server

The Firebase MCP Server provides assistive utilities to compatible AI-assistant development tools.

Usage

The Firebase MCP server uses the Firebase CLI for authentication and project selection. You will usually want to start the server with a specific directory as an argument to operate against the project of your working directory.

For clients that don't operate within a specific workspace, the Firebase MCP server makes tools available to read and write a project directory.

Example: Cursor

In .cursor/mcp.json in your workspace directory, add the Firebase MCP server:

{
  "mcpServers": {
    "firebase": {
      "command": "npx",
      "args": ["-y", "firebase-tools", "experimental:mcp", "--dir", "<your_absolute_workspace_dir>"]
    }
  }
}

Command Line Options

• --dir <absolute_dir_path>: The absolute path of a directory containing firebase.json to set a project context for the MCP server. If unspecified, the {get|set}_firebase_directory tools will become available and the default directory will be the working directory where the MCP server was started.
• --only <feature1,feature2>: A comma-separated list of feature groups to activate. Use this to limit the tools exposed to only features you are actively using.

Tools

Tool Name	Feature Group	Description
get_firebase_directory	core	When running without the --dir command, retrieves the current directory (defaults to current working directory).
set_firebase_directory	core	When running without the --dir command, sets the current project directory (i.e. one with firebase.json in it).
get_project	project	Get basic information about the active project in the current Firebase directory.
list_apps	project	List registered apps for the currently active project.
get_sdk_config	project	Get an Firebase client SDK config for a specific platform.