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

Q: How do I add the Firebase (REST & Admin APIs) server to Cursor?

Create an mcp.json file in your .cursor directory at the project root. Add the server configuration under the mcpServers key with your Vinkius endpoint. Cursor will load the MCP tools automatically when you open the project.

Q: Can Cursor use Firebase (REST & Admin APIs) to write code for me?

Yes, in Agent mode, Cursor calls MCP tools like firestoregetdoc to understand your database schema. It then uses that structure to write precise, typed code for your application. This eliminates the need to write manual type definitions.

Build features in Cursor with real Firestore data and live user profiles instead of static mocks.

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Connect Firebase (REST & Admin APIs) MCP to Cursor

Create your Vinkius account to connect Firebase (REST & Admin APIs) to Cursor 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 Cursor

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Generate code in Cursor using real Firestore structures

`firestore_get_doc` pulls live production or staging documents directly into your active Cursor editor context. Instead of guessing your schema or relying on outdated TypeScript interfaces, your agent reads the actual Firestore JSON layout inside Cursor. This allows Cursor to generate precise database queries that match your live Firestore rules. `firestore_list_docs` collects sample documents from any Firestore collection to verify field types before you write code in Cursor. Your agent uses this live Firestore context to build UI components in Cursor that map perfectly to your database fields. You write fewer bugs in Cursor because you work with actual Firestore data from the start.

Modify Realtime Database state inside Cursor agent mode

`rtdb_get` inspects your live Realtime Database state tree directly from the Cursor editor sidebar. When you run into sync issues, you do not need to open a separate browser tab to check your Realtime Database. Your agent can execute `rtdb_patch` to fix broken Realtime Database state nodes on the fly while you debug in Cursor. `rtdb_put` replaces entire Realtime Database nodes when you need to reset your test environment inside Cursor. This MCP Server speeds up your debugging loop by keeping your Cursor terminal and database in sync. If you need to clear transient data, `rtdb_delete` wipes specific Realtime Database paths instantly from Cursor.

Test auth flows and send push notifications from Cursor

`auth_lookup` retrieves Firebase Auth user records directly into your Cursor workspace to check custom claims and creation dates. Your agent runs `auth_sign_up` or `auth_sign_in` inside Cursor to generate valid test tokens for your local API calls. This keeps your local Cursor development flow moving without manual Firebase token generation scripts. `fcm_send_message` sends test push notifications to verify your client-side listener code directly inside Cursor. You write the trigger logic in Cursor, and your agent tests the FCM payload delivery immediately. This guarantees your FCM notification payloads match what your Cursor code expects.

Setup guide

Set up Firebase (REST & Admin APIs) MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Firebase (REST & Admin APIs) MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Firebase (REST & Admin APIs) transactions." If the MCP tools are loaded correctly, Cursor will call the Firebase (REST & Admin APIs) tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/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 Cursor

Create an `mcp.json` file in your `.cursor` directory at the project root. Add the server configuration under the `mcpServers` key with your Vinkius endpoint. Cursor will load the MCP tools automatically when you open the project.

Yes, in Agent mode, Cursor calls MCP tools like `firestore_get_doc` to understand your database schema. It then uses that structure to write precise, typed code for your application. This eliminates the need to write manual type definitions.

No, it runs asynchronously in the background. Tool executions like `rtdb_get` resolve in milliseconds over our optimized MCP infrastructure. Your editor remains fast and responsive while your agent fetches data.

Yes, you can configure multiple instances of the server in your configuration file. Assign a unique name to each instance and point them to different project IDs. Your agent will choose the correct server based on your prompt.

All database operations, including Auth profiles and Firestore JSON payloads, are encrypted in transit. Vinkius handles the connection using a zero-trust model. Your credentials never leak into your code repository or Cursor's training data.

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