mcp.so

By stagsz GitHub

Overview

what is Firebird MCP Server?

Firebird MCP Server is a Model Context Protocol (MCP) server designed for Firebird databases, enabling read-only SQL queries and schema exploration.

how to use Firebird MCP Server?

To use the Firebird MCP Server, configure it with the Claude Desktop app or run it using Docker or NPX commands to connect to your Firebird database.

key features of Firebird MCP Server?

  • Executes read-only SQL queries against Firebird databases.
  • Provides JSON schema information for each table in the database.
  • Supports integration with LLMs for database inspection.

use cases of Firebird MCP Server?

  1. Inspecting database schemas for development purposes.
  2. Executing read-only queries for data analysis.
  3. Integrating with AI models for enhanced database interactions.

FAQ from Firebird MCP Server?

  • Can I modify data using Firebird MCP Server?

No, the server only allows read-only access to the database.

  • How do I set up the server with Docker?

You can set up the server by running a Docker command with the appropriate configuration for your database.

  • Is there a license for using Firebird MCP Server?

Yes, it is licensed under the MIT License, allowing free use, modification, and distribution.

Content

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
    • Execute read-only SQL queries against the connected database
    • Input: sql (string): The SQL query to execute
    • All queries are executed within a READ ONLY transaction

Resources

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

  • Table Schemas (firebird://<host>/<table>/schema)
    • JSON schema information for each table
    • Includes column names and data types
    • Automatically discovered from database metadata

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:

    • Ensure the DATABASE environment variable is properly set
    • Check permissions on the firebird_data volume
    • Allow sufficient time for the Firebird server to initialize

  2. Database initialization:

    • The server uses several initialization scripts (init.sql, test_db.sql)
    • Ensure these files have correct permissions

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.

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