Firebase

In one line: Let your UnleashX agent read, create, update, and delete records in your Firebase Firestore and Realtime Database projects.


Category	Storage
Authentication	OAuth (Google / Firebase access token)
Setup time	~5 minutes
Difficulty	Medium
Best for	Teams whose app or backend data lives in Firebase and who want their agent to look up, log, or update that data in real time.

1. Overview

Firebase is Google’s app-development platform. Two of its most-used pieces are Cloud Firestore (a flexible, document-based database) and the Realtime Database (a fast JSON tree that syncs live across clients). Together they store the day-to-day data behind millions of web and mobile apps — users, orders, bookings, chat messages, sensor readings, and more. Once you connect Firebase to UnleashX, your agent can work directly with that data. It can look up a customer record, list everything in a collection, file a new support ticket as a Firestore document, push a live event into the Realtime Database, or clean up stale entries — all from a normal conversation, with no code. Connecting Firebase to UnleashX turns your existing app database into something your voice or automation agent can act on. Instead of manually checking the Firebase Console, your agent reads and writes the same records your app uses, so answers and updates stay accurate and current.

2. What you’ll need

A Google account with access to the Firebase / Google Cloud project you want to connect.
The project ID of that Firebase project (visible in the Firebase Console or Google Cloud Console).
Permission to view and edit the relevant Firestore database and/or Realtime Database (typically Editor or Owner, or a custom role with Datastore / Firebase Database access).
A way to obtain a Google OAuth access token for the project (see Section 3).

If you don’t have admin access to the Firebase project, ask whoever owns it (often an engineer or the project Owner) to either grant you access or generate the access token for you. Connecting only needs a valid token — you do not need to be the project Owner yourself.

3. Get your credentials

Firebase MCP authenticates with a Google OAuth 2.0 access token that has access to your Firebase project. The token is sent to Google’s APIs as a Bearer token (and, for the Realtime Database, as an access_token query parameter behind the scenes).

Open your Firebase project

Go to the Firebase Console and select the project whose data you want to connect. Note its Project ID — you’ll provide this to your agent.

Confirm the APIs are enabled

In the Google Cloud Console for the same project, make sure the Cloud Firestore API and Firebase Realtime Database are enabled under APIs & Services → Library.

Generate an OAuth access token

Obtain a Google OAuth 2.0 access token for the project with the scopes below (for example via the Google OAuth flow, the gcloud CLI gcloud auth print-access-token, or your service’s OAuth integration). UnleashX uses this token as a Bearer credential.Scopes UnleashX requests for Firebase:

Scope	Why UnleashX needs it
`https://www.googleapis.com/auth/cloud-platform`	Access Firebase / Google Cloud project resources.
`https://www.googleapis.com/auth/firebase`	Read your Firebase projects and their configuration.
`https://www.googleapis.com/auth/datastore`	Read and write Firestore documents and collections.
`https://www.googleapis.com/auth/userinfo.email`	Identify which account is connected.
`https://www.googleapis.com/auth/userinfo.profile`	Read your basic profile (name, picture).
`openid`	Sign-in / identity verification.

Google OAuth access tokens are short-lived — they typically expire after about an hour. Copy it as soon as it’s generated. For ongoing use, connect through UnleashX’s OAuth flow so the token can be refreshed automatically rather than pasting a one-time token.

Permissions this token grants UnleashX

Scope / access	Why UnleashX needs it
View Firebase / Cloud projects	List your projects so you can pick the right one in your agent.
Read Firestore data	Fetch, list, and query documents and collections.
Write Firestore data	Create, update, and delete documents.
Read Realtime Database	Read values and query paths in the RTDB tree.
Write Realtime Database	Set, update, push, and delete values in the RTDB tree.

4. Connect on UnleashX

Open your agent

Go to Data Connectors

In the agent, open Data Connectors and find Firebase in the list.

Connect

Click Connect / Add / Configure next to Firebase and authenticate once with your Google / Firebase OAuth access token (header access-token or Authorization: Bearer …).

Confirm success

When the connection is valid, the status changes to a Connected badge. Your agent can now use the Firebase tools below.

Use Firebase in a Workflow

Once connected, you can add Firebase to any automation from the Workflows builder. Its triggers and tools appear in the Apps panel, marked with an MCP badge.

Add a trigger or action node

Open Workflows → New Workflow. On the canvas, click + Add Trigger (or the + below any node) to add a step.

Pick Firebase from the Apps panel

In the Paths panel, open the Apps tab and select Firebase. Use the search box if you have many connectors.

Choose a trigger or tool

Pick the trigger or action you want. Configure its fields — required fields are marked with a red asterisk (*).

Add or select your account

Under Selected account, choose an already-connected account, or click Add Account to connect one now.

Save and test

Fill in the remaining fields and click Save. Use Test to verify the step, then toggle Publish when the workflow is ready.

The steps are the same for every connector. For the full workflow builder guide, see Using MCP in Workflows.

5. Available tools

This server exposes 21 tools covering project discovery, Firestore, and the Realtime Database.

Tool name	What it does	Changes data?
List Firebase Projects	List all Google Cloud / Firebase projects you can access.	No
Get Firebase Project	Get details of a specific Firebase project.	No
List Firestore Databases	List the Firestore databases in a project.	No
Get Firestore Database	Get details of a specific Firestore database.	No
Firestore: List Collections	List all collections in a Firestore database.	No
Firestore: List Subcollections	List the subcollections under a specific document.	No
Firestore: List Documents	List documents in a Firestore collection.	No
Firestore: Get Document	Fetch a single Firestore document by its path.	No
Firestore: Batch Get Documents	Fetch multiple Firestore documents in one request.	No
Firestore: Query Documents	Query a collection with filters, ordering, and limits.	No
Firestore: Create Document	Create a new document in a collection.	✏️ Yes
Firestore: Update Document	Update specific fields in an existing document.	✏️ Yes
Firestore: Delete Document	Delete a Firestore document by its path.	⚠️ Yes
Realtime DB: List Instances	List all Realtime Database instances in a project.	No
Realtime DB: Get Instance	Get details of a specific Realtime Database instance.	No
Realtime DB: Get	Read data at a Realtime Database path.	No
Realtime DB: Query	Query a Realtime Database path with filters and limits.	No
Realtime DB: Set	Write (overwrite) data at a Realtime Database path.	✏️ Yes
Realtime DB: Update	Update fields at a Realtime Database path.	✏️ Yes
Realtime DB: Push	Push a new child under a path with an auto-generated ID.	✏️ Yes
Realtime DB: Delete	Remove data at a Realtime Database path.	⚠️ Yes

Firestore: Delete Document and Realtime DB: Delete permanently remove data and cannot be undone. Realtime DB: Set overwrites everything at the target path. Be specific about the path or document before asking your agent to run these.

6. Example usage

“Look up the order with ID ord_8841 in my orders collection and tell me its status.” → Runs Firestore: Get Document (or Firestore: Query Documents) against the orders collection. “Log a new support ticket in the tickets collection: subject ‘Login issue’, priority high, status open.” → Runs Firestore: Create Document to add a new document with those fields.

7. Permissions & data access

UnleashX can:

List your accessible Firebase projects and their Firestore / Realtime databases.
Read, query, create, update, and delete Firestore documents in the connected project.
Read, query, set, update, push, and delete data in the Realtime Database.

UnleashX cannot:

Access Firebase projects the connected token doesn’t have permission for.
Change Firebase security rules, billing, or project configuration.
Touch Firebase Authentication users, Cloud Functions, or Storage buckets (only Firestore and Realtime Database are exposed).

How to disconnect: In your agent’s Data Connectors, open Firebase and choose Disconnect. This stops UnleashX from using the token immediately. To fully revoke access, also remove UnleashX’s authorization in your Google account’s third-party app/access settings or rotate the underlying token.

8. Troubleshooting

Problem	What it means	How to fix it
`401 Unauthorized` / “Access token missing”	The token is missing, malformed, or expired.	Reconnect Firebase with a fresh OAuth access token. Tokens expire quickly — use the UnleashX OAuth flow so it refreshes automatically.
`403 Forbidden` / `PERMISSION_DENIED`	The token is valid but lacks permission for that project, database, or operation.	Make sure the account has Editor/Owner (or Datastore / Firebase Database) access, and that the Firestore / RTDB APIs are enabled.
`404 Not Found`	The project ID, database ID, collection, or document path doesn’t exist.	Double-check the project ID and the exact path. The Firestore database defaults to `(default)`.
Empty result on a Realtime Database read	The path is empty or the wrong RTDB instance/URL was used.	Use Realtime DB: List Instances to confirm the database URL, then retry with the correct path.
Writes rejected	Security rules block server-side writes, or you’re in a read-only context.	Review your Firestore / RTDB security rules and confirm the token’s role allows writes.

For general connector issues, see /mcp/integrations.

9. Frequently asked questions

Is my Firebase data stored by UnleashX? No. UnleashX reads and writes your data on demand through Google’s APIs to fulfill each request. It does not maintain a separate copy of your Firestore or Realtime Database. Can multiple team members connect the same project? Yes. Each agent connects with its own token. Anyone with a valid token for the project (and the right role) can connect it to their agent. My token keeps expiring — what do I do? Google OAuth access tokens are short-lived by design. Connect through UnleashX’s OAuth flow so the token is refreshed automatically, instead of pasting a one-time token that expires within the hour. Does this work with both Firestore and the Realtime Database? Yes. The Firestore tools target Cloud Firestore and the Realtime DB tools target the Realtime Database. You can use either or both in the same agent.

Getting started

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Features

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Resources

Firebase

Firebase

1. Overview

2. What you’ll need

3. Get your credentials

Permissions this token grants UnleashX

4. Connect on UnleashX

Use Firebase in a Workflow

5. Available tools

6. Example usage

7. Permissions & data access

8. Troubleshooting

9. Frequently asked questions

10. References

​Firebase

​1. Overview

​2. What you’ll need

​3. Get your credentials

​Permissions this token grants UnleashX

​4. Connect on UnleashX

​Use Firebase in a Workflow

​5. Available tools

​6. Example usage

​7. Permissions & data access

​8. Troubleshooting

​9. Frequently asked questions

​10. References

Firebase

1. Overview

2. What you’ll need

3. Get your credentials

Permissions this token grants UnleashX

4. Connect on UnleashX

Use Firebase in a Workflow

5. Available tools

6. Example usage

7. Permissions & data access

8. Troubleshooting

9. Frequently asked questions

10. References