Firebird MCP Server

A Model Context Protocol server that provides read-only access to Firebird databases. This server enables LLMs to inspect database schemas and execute read-only queries.

Components

Tools

• query

Resources

The server provides schema information for each table in the database:

• Table Schemas (`firebird:////schema`)

Usage with Claude Desktop

To use this server with the Claude Desktop app, add the following configuration to the "mcpServers" section of your `claude_desktop_config.json`:

Docker

• When running docker on macos, use host.docker.internal if the server is running on the host network (eg localhost)
• username/password can be added to the firebird url with `firebird://SYSDBA:masterkey@host:3051/test_db`

{
  "mcpServers": {
    "firebird": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "mcp/firebird",
        "firebird://host.docker.internal:3051/test_db"
      ]
    }
  }
}

NPX

{
  "mcpServers": {
    "firebird": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-firebird",
        "firebird://localhost:3051/test_db"
      ]
    }
  }
}

Replace `/test_db` with your database name.

Development Setup

Docker Environment Variables

Required environment variables for the Firebird container:

• `DATABASE`: Path to the database file (e.g., /firebird/data/test_db.fdb)
• `FIREBIRD_USER`: Database user (default: SYSDBA)
• `FIREBIRD_PASSWORD`: Database password (default: masterkey)
• `EnableLegacyClientAuth`: Enable legacy client authentication (default: "true")
• `EnableWireCrypt`: Enable wire encryption (default: "false")
• `CreateDb`: Allow database creation (default: "true")

Building

Docker:

docker build -t mcp/firebird -f src/firebird/Dockerfile .

Troubleshooting

Common issues:

1. Container startup failures:

2. Database initialization:

License

This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.