firestore-read MCP Server

A Claude MCP server that enables Claude to read and interact with your existing Firestore collections directly.

More future updates will likely be coming soon, for my personal use, or if others are very keen on seeing updates here. I am doing this personally because when developing ReactJS apps, I often have to face the hustle of continuously having to show Claude-Sonnet-3.5 what my current Firestore collections and document fiels looks like, else it will hallucinate, and always make weird assumptions and just ruins everything. Hence, this allows programmers to swiftly allow Claude-3.5 to readily read your firestore collections easily (given everything is set to public, idk this will likely only be improved in the future if I really need to or that I get requests).

Features

This server allows Claude to:

• List all collections in your Firestore database
• Read documents from any collection
• Create new documents in existing collections
• Handle complex Firestore data types including timestamps and document references

Tools

The server implements three main tools:

1. list-collections

Lists all collections in the Firestore database.

• No parameters required
• Returns an array of collection names

2. get-collection

Retrieves all documents from a specified collection.

• Required parameter: collection (string)
• Returns array of documents with their IDs and data

3. create-document

Creates a new document in a specified collection.

• Required parameters:
  • collection (string)
  • document_data (object)
• Returns confirmation message with new document ID

Configuration

Environment Variables

The server requires two environment variables:

FIREBASE_API_KEY=your-firebase-web-api-key
FIREBASE_PROJECT_ID=your-firebase-project-id

Note: These are web client credentials and are safe to expose in client-side code.

Installation

Prerequisites

• Python 3.11 or higher
• uv package manager

Dependencies

uv pip install firebase-admin
uv pip install python-dotenv

Claude Desktop Configuration

Add this to your Claude Desktop config file:

MacOS

Location: ~/Library/Application Support/Claude/claude_desktop_config.json

Windows

Location: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "firestore-read": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/your/firestore-read",
        "run",
        "firestore-read"
      ],
      "env": {
        "FIREBASE_API_KEY": "your-firebase-web-api-key",
        "FIREBASE_PROJECT_ID": "your-firebase-project-id"
      }
    }
  }
}

Usage Examples

Here are some example interactions with Claude using this server:

Listing Collections

Human: List all collections in my Firestore database.

Claude: I'll list all collections in your database:
[
  {
    "name": "users"
  },
  {
    "name": "projects"
  },
  {
    "name": "tasks"
  }
]

Reading Documents

Human: Show me the documents in the users collection.

Claude: Here are the documents from the users collection:
[
  {
    "id": "user123",
    "data": {
      "name": "John Doe",
      "email": "john@example.com",
      "createdAt": "2024-01-01T00:00:00Z"
    }
  }
]

Creating Documents

Human: Create a new test document.

Claude: I'll create a new test document:
Created new document with ID abc123 in 'test'

Development

Debugging

For debugging, you can use the MCP Inspector. Install and run it using:

npx @modelcontextprotocol/inspector uv --directory /path/to/your/firestore-read run firestore-read

Error Handling

The server includes error handling for:

• Firebase initialization failures
• Invalid collection names
• Document creation errors
• Invalid data types
• Missing environment variables

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.