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Connectors
Connect

Connect to everything your agents need, without writing the infrastructure to get there.

Secure

Enterprise-grade controls to ensure your agent always meets security & compliance standards.

Optimize

Maximise agent efficiency – faster responses, increased accuracy, fewer tokens used.

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Live 36 Actions

Firebase MCP Server
for AI Agents

Connect your AI agent to StackOne's Firebase MCP server and give it 36 MCP tools out of the box. Auth, tool execution, and security all managed.

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Firebase MCP Server
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Coverage

36 Agent Actions

Create, read, update, and delete across Firebase — and extend your agent's capabilities with custom actions.

MCP Actions → Build Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Firebase MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Firebase tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Firebase call.

Tools Discovery →

What is the Firebase MCP Server?

A Firebase MCP server lets AI agents read and write Firebase data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Firebase MCP server ships with 36 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All Firebase MCP Tools

Every action from Firebase's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

Users

  • Create User

    Create a new Firebase Authentication user in a project.

  • List Users

    List all Firebase Authentication users in a project.

  • Query Users

    Query Firebase Authentication users with filters and sorting.

  • Update User

    Update a Firebase Authentication user's profile, email, password, status, or MFA enrollment.

  • Batch Delete Users

    Bulk delete up to 1000 Firebase Authentication users.

  • Delete User

    Delete a Firebase Authentication user from a project.

Documents

  • Create Document

    Create a new document in a Firestore collection.

  • List Documents

    List documents in a Firestore collection.

  • Get Document

    Get a single Firestore document by its full resource name.

  • Update Document

    Update or create a Firestore document.

  • Delete Document

    Delete a Firestore document.

Projects

  • List Projects

    List all Firebase projects associated with the connected Google account.

  • Get Project

    Get a specific Firebase project by project ID.

  • Update Project

    Update a Firebase project's display name or custom annotations.

Android Apps

  • Create Android App

    Register a new Android app in a Firebase project.

  • List Android Apps

    List all Android apps registered in a Firebase project.

  • Get Android App

    Get a specific Android app by app ID.

  • Update Android App

    Update an Android app's display name or API key association.

  • Remove Android App

    Remove (soft-delete) an Android app from a Firebase project.

Web Apps

  • Create Web App

    Register a new web app in a Firebase project.

  • List Web Apps

    List all web apps registered in a Firebase project.

  • Get Web App

    Get a specific web app by app ID.

  • Update Web App

    Update a web app's display name, app URLs, or API key association.

  • Remove Web App

    Remove (soft-delete) a web app from a Firebase project.

SHA Certificates

  • Create SHA Certificate

    Add a SHA certificate hash to an Android app.

  • List SHA Certificates

    List all SHA certificate hashes registered for an Android app.

Other (10)

  • Send Message

    Send a push notification to a device, topic, or condition via Firebase Cloud Messaging.

  • List Available Projects

    List GCP projects available to have Firebase resources added.

  • Get Analytics Details

    Get Google Analytics details linked to a Firebase project.

  • Search Apps

    Search across all Firebase apps in a project (Android and Web — iOS apps still appear in the response but are not exposed as dedicated actions in this connector).

  • Get Android App Config

    Get the project-level google-services.json configuration file.

  • Get Web App Config

    Get the Firebase config JSON for a web app.

  • Lookup User

    Look up one or more Firebase Authentication users by UID, email, phone number, or federated identity.

  • Run Query

    Run a structured query against a Firestore collection or collection group.

  • Undelete Android App

    Restore a previously soft-deleted Android app to ACTIVE state.

  • Undelete Web App

    Restore a previously soft-deleted web app to ACTIVE state.

Set Up Your Firebase MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Firebase in under 10 lines of code.

MCP Clients

Claude Desktop setup guide
Claude Code setup guide
Cursor setup guide
Goose setup guide

Agent Frameworks

Claude Desktop
{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

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Platform Resources

MCP Code Mode: Keeping Tool Responses Out of Agent Context

Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.

11 min

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

MCP vs A2A: Architecture, Security, and When to Use Each

MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.

12 min

MCP vs API: What 200+ Connector Builds Taught Us

MCP wraps APIs, it doesn't replace them. After building 200+ connectors that serve both, here's when each approach wins.

14 min read

Firebase MCP Server FAQ

Does StackOne have a Firebase MCP server?
Yes. StackOne offers a hosted Firebase MCP server with 36 pre-built actions, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.
Firebase MCP server vs direct API integration — what's the difference?
A Firebase MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Firebase. A Firebase MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Firebase at runtime. StackOne provides both.
How does Firebase authentication work for AI agents?
Firebase authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Firebase account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.
Are Firebase MCP tools vulnerable to prompt injection?
Yes — Firebase MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.
What is the context bloat of a Firebase agent and how do I avoid it?
Context bloat happens when Firebase tool schemas and API responses eat your Firebase agent's memory, preventing it from reasoning effectively. A single Firebase query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.
Can I limit which actions my Firebase agent can access?
Yes — you can limit which actions your Firebase agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my Firebase MCP server?
Yes — you can create custom agent actions for your Firebase MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Firebase's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Firebase MCP server?
Skip a Firebase MCP server if your integration is purely software-to-software — direct Firebase API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Firebase actions at runtime.
What AI frameworks and AI clients does the StackOne Firebase MCP server support?
The StackOne Firebase MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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