How to Use the Firebase (REST & Admin APIs) MCP in Claude

Q: How do I configure Firebase (REST & Admin APIs) inside Claude Desktop?

Open your claudedesktopconfig.json file and add the server to the mcpServers object. Provide your Firebase service account credentials as environment variables. Restart the app, and you will see the tools ready under the hammer icon.

Stop copying JSON payloads manually; let Claude Desktop run raw Firebase queries and manage users directly from your chat.

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Connect Firebase (REST & Admin APIs) MCP to Claude Desktop

Create your Vinkius account to connect Firebase (REST & Admin APIs) to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Firebase (REST & Admin APIs) with Claude Desktop

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Mutate Firestore collections inside Claude Desktop

`firestore_create_doc` initiates document creation in your Firestore collections without you opening the Firebase Console. You can let your agent write new documents, fetch them instantly using `firestore_get_doc`, or run targeted updates with `firestore_patch_doc` right inside your Claude Desktop panel. This means you test your Firestore database operations locally during active Claude Desktop chat sessions. Your agent handles Firebase JSON payload validation automatically within the chat interface. By reading your existing schema using `firestore_list_docs`, the tool ensures your writes match your actual Firestore database structure. You avoid manual typing errors in Claude Desktop and skip writing temporary throwaway scripts to check a single Firestore field value.

Sync Realtime Database nodes using this MCP Server

`rtdb_put` overwrites JSON trees in your Firebase Realtime Database for instant state synchronization with your Claude Desktop client. If you need to append data without overwriting existing nodes, `rtdb_push` generates unique keys automatically inside the database. Your agent uses these Realtime Database tools to manage live application state right from the Claude Desktop chat interface. For surgical updates, `rtdb_patch` modifies specific children while leaving the rest of your Realtime Database tree untouched. This MCP Server runs over a secure stdio transport locally, letting you debug production database issues without leaving Claude Desktop. You can also clean up stale Realtime Database test nodes instantly using `rtdb_delete`.

Verify Auth users and send FCM alerts from Claude Desktop

`auth_lookup` inspects user profiles in your Firebase Auth database to verify account status directly inside Claude Desktop. Your agent runs sign-ups with `auth_sign_up` and test logins with `auth_sign_in` to validate your authentication flows inside the chat. This removes the friction of switching between browser tabs to check if a Firebase Auth user record exists. `fcm_send_message` dispatches push notifications to your testing devices instantly from your Claude Desktop session. You can write the message payload in plain text and let Claude Desktop format the final FCM JSON structure. This keeps your Firebase testing cycle tight and your focus locked on the Claude Desktop interface.

Setup guide

Set up Firebase (REST & Admin APIs) MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Firebase (REST & Admin APIs) MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Firebase (REST & Admin APIs) MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under firebase-rest-admin-apis-mcp.

json

{
  "mcpServers": {
    "firebase-rest-admin-apis-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Firebase. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Firebase (REST & Admin APIs) MCP in Claude Desktop

Open your `claude_desktop_config.json` file and add the server to the `mcpServers` object. Provide your Firebase service account credentials as environment variables. Restart the app, and you will see the tools ready under the hammer icon.

Yes, you can hook it up via custom connectors. Go to your Claude web settings, paste the remote MCP server URL hosted on Vinkius, and authenticate. This gives you browser-based access to your databases without local installations.

The client displays the raw REST API error message directly in your conversation history. Your agent reads the error payload, adjusts the JSON parameters, and retries the operation automatically. This makes debugging security rules fast with your MCP setup.

No, you do not need any local SDKs. This server communicates directly with Firebase REST endpoints. Your agent manages everything using standard JSON payloads, saving you from package version conflicts.

Your Firebase Auth credentials, Firestore documents, and RTDB JSON payloads remain strictly inside Vinkius's secure sandboxed environment. The server uses ephemeral V8 isolates to process requests. No data is stored or logged after your session ends.

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