Firebase MCP Server

The Firebase MCP server connects your AI assistant to your Firebase project, giving it insight into your NoSQL data, analytics trends, and remote configuration.

Features

• Firestore Inspection: Read collections and documents to understand your NoSQL schema.
• Analytics Queries: Ask natural language questions about your app's performance (e.g., "How many daily active users last week?").
• Remote Config Management: Read and propose updates to your Remote Config template.
• Crashlytics Insights: Summarize recent crash reports and their stack traces.

Installation & Configuration

Prerequisites

• Firebase Project Created.
• firebase-tools CLI installed and authenticated (run firebase login).
• A Service Account JSON key (for persistent server usage).

Method 1: Using CLI Auth (Quick Start)

If you have firebase-tools installed and are logged in, the MCP server can often reuse your local credentials.

Method 2: Service Account (Recommended)

1. Go to Firebase Console > Project Settings > Service Accounts.
2. Click Generate new private key.
3. Save the JSON file securely (e.g., folder/firebase-service-account.json).
4. Add this file to .gitignore.

Setup for Cursor

1. Open Cursor Settings > Features > MCP.
2. Click + Add New MCP Server.
3. Fill in the details:

4. Add Environment Variables:

Setup for Claude Code

{
  "mcpServers": {
    "firebase": {
      "command": "npx",
      "args": ["-y", "firebase-mcp"],
      "env": {
        "FIREBASE_PROJECT_ID": "your-project-id",
        "GOOGLE_APPLICATION_CREDENTIALS": "/path/to/service-account.json"
      }
    }
  }
}

Usage Examples

1. Explore Data:

"List the collections in my Firestore root." "Show me the structure of a document in the users collection."

2. Analyze Performance:

"What was the retention rate for the cohort signing up last week?"

3. Debug Crashes:

"Summarize the top 3 most frequent crashes from the last 24 hours."