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MySQL MongoDB Database

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Model Context Protocol server providing MySQL and MongoDB database operations through standardized interface.

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MCP-MongoDB-MySQL-Server

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这是一个基于 enemyrr/mcp-mysql-server 项目的二次开发版本，添加了MongoDB支持。

This is a fork of enemyrr/mcp-mysql-server with added MongoDB support.

项目简介 | Introduction

这是一个Model Context Protocol服务器，提供MySQL和MongoDB数据库操作功能。该服务器使AI模型能够通过标准化接口与MySQL和MongoDB数据库交互。

A Model Context Protocol server that provides MySQL and MongoDB database operations. This server enables AI models to interact with MySQL and MongoDB databases through a standardized interface.

二次开发说明 | About This Fork

作者 | Author: yaoxiaolinglong

二次开发原因 | Reason for Fork: 原项目只支持MySQL数据库，但在实际应用中经常需要使用MongoDB。由于找不到现成的MongoDB MCP工具，因此在原项目基础上添加了MongoDB支持，使其成为一个同时支持MySQL和MongoDB的数据库服务器。

The original project only supports MySQL database, but MongoDB is often needed in practical applications. Due to the lack of ready-made MongoDB MCP tools, MongoDB support was added to the original project, making it a database server that supports both MySQL and MongoDB.

安装与设置 | Installation & Setup for Cursor IDE

通过Smithery安装 | Installing via Smithery

通过Smithery为Claude Desktop自动安装MySQL/MongoDB数据库服务器：

To install MySQL/MongoDB Database Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @yaoxiaolinglong/mcp-mongodb-mysql-server --client claude

手动安装 | Installing Manually

  1. 克隆并构建项目 | Clone and build the project:
git clone https://github.com/yaoxiaolinglong/mcp-mongodb-mysql-server.git
cd mcp-mongodb-mysql-server
npm install
npm run build
  1. 在Cursor IDE设置中添加服务器 | Add the server in Cursor IDE settings:
    • 打开命令面板(Cmd/Ctrl + Shift + P) | Open Command Palette (Cmd/Ctrl + Shift + P)
    • 搜索"MCP: Add Server" | Search for "MCP: Add Server"
    • 填写以下字段 | Fill in the fields:
      • 名称 | Name: mysql-mongodb
      • 类型 | Type: command
      • 命令 | Command: node /absolute/path/to/mcp-mongodb-mysql-server/build/index.js

注意 | Note: 将/absolute/path/to/替换为您克隆并构建项目的实际路径。

Replace /absolute/path/to/ with the actual path where you cloned and built the project.

数据库配置 | Database Configuration

MySQL配置 | MySQL Configuration

您可以通过以下三种方式配置MySQL数据库连接：

You can configure the MySQL database connection in three ways:

  1. .env文件中的数据库URL（推荐）| Database URL in .env (Recommended):
DATABASE_URL=mysql://user:password@host:3306/database
  1. .env文件中的单独参数 | Individual Parameters in .env:
DB_HOST=localhost
DB_USER=your_user
DB_PASSWORD=your_password
DB_DATABASE=your_database
  1. 通过工具直接连接 | Direct Connection via Tool:
use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "connect_db",
  arguments: {
    url: "mysql://user:password@host:3306/database"
    // 或者 | OR
    workspace: "/path/to/your/project" // 将使用项目的.env文件 | Will use project's .env
    // 或者 | OR
    host: "localhost",
    user: "your_user",
    password: "your_password",
    database: "your_database"
  }
});

MongoDB配置 | MongoDB Configuration

您可以通过以下三种方式配置MongoDB数据库连接：

You can configure the MongoDB database connection in three ways:

  1. .env文件中的MongoDB URL（推荐）| MongoDB URL in .env (Recommended):
MONGODB_URI=mongodb://user:password@host:27017/database
MONGODB_DATABASE=your_database
  1. 通过工具直接连接 | Direct Connection via Tool:
use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "connect_mongodb",
  arguments: {
    url: "mongodb://user:password@host:27017/database"
    // 或者 | OR
    workspace: "/path/to/your/project" // 将使用项目的.env文件 | Will use project's .env
    // 或者 | OR
    database: "your_database" // 将使用默认连接URI | Will use default connection URI
  }
});

可用工具 | Available Tools

MySQL工具 | MySQL Tools

1. connect_db

连接到MySQL数据库，使用URL、工作区路径或直接凭据。

Connect to MySQL database using URL, workspace path, or direct credentials.

2. query

执行SELECT查询，支持可选的预处理语句参数。

Execute SELECT queries with optional prepared statement parameters.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "query",
  arguments: {
    sql: "SELECT * FROM users WHERE id = ?",
    params: [1]
  }
});

3. execute

执行INSERT、UPDATE或DELETE查询，支持可选的预处理语句参数。

Execute INSERT, UPDATE, or DELETE queries with optional prepared statement parameters.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "execute",
  arguments: {
    sql: "INSERT INTO users (name, email) VALUES (?, ?)",
    params: ["John Doe", "[email protected]"]
  }
});

4. list_tables

列出连接的数据库中的所有表。

List all tables in the connected database.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "list_tables"
});

5. describe_table

获取特定表的结构。

Get the structure of a specific table.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "describe_table",
  arguments: {
    table: "users"
  }
});

6. create_table

创建一个新表，指定字段和索引。

Create a new table with specified fields and indexes.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "create_table",
  arguments: {
    table: "users",
    fields: [
      {
        name: "id",
        type: "int",
        autoIncrement: true,
        primary: true
      },
      {
        name: "email",
        type: "varchar",
        length: 255,
        nullable: false
      }
    ],
    indexes: [
      {
        name: "email_idx",
        columns: ["email"],
        unique: true
      }
    ]
  }
});

7. add_column

向现有表添加新列。

Add a new column to an existing table.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "add_column",
  arguments: {
    table: "users",
    field: {
      name: "phone",
      type: "varchar",
      length: 20,
      nullable: true
    }
  }
});

MongoDB工具 | MongoDB Tools

1. connect_mongodb

连接到MongoDB数据库，使用URL、工作区路径或数据库名称。

Connect to MongoDB database using URL, workspace path, or database name.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "connect_mongodb",
  arguments: {
    url: "mongodb://user:password@host:27017/database"
  }
});

2. mongodb_list_collections

列出连接的MongoDB数据库中的所有集合。

List all collections in the connected MongoDB database.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "mongodb_list_collections"
});

3. mongodb_find

在MongoDB集合中查找文档，支持可选的过滤器、限制、跳过和排序。

Find documents in a MongoDB collection with optional filter, limit, skip, and sort.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "mongodb_find",
  arguments: {
    collection: "users",
    filter: { age: { $gt: 18 } },
    limit: 10,
    skip: 0,
    sort: { name: 1 }
  }
});

4. mongodb_insert

向MongoDB集合中插入文档。

Insert documents into a MongoDB collection.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "mongodb_insert",
  arguments: {
    collection: "users",
    documents: [
      { name: "John Doe", email: "[email protected]", age: 30 },
      { name: "Jane Smith", email: "[email protected]", age: 25 }
    ]
  }
});

5. mongodb_update

更新MongoDB集合中的文档。

Update documents in a MongoDB collection.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "mongodb_update",
  arguments: {
    collection: "users",
    filter: { name: "John Doe" },
    update: { $set: { age: 31 } },
    many: false // 只更新一个文档（默认）| Update only one document (default)
  }
});

6. mongodb_delete

从MongoDB集合中删除文档。

Delete documents from a MongoDB collection.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "mongodb_delete",
  arguments: {
    collection: "users",
    filter: { name: "John Doe" },
    many: false // 只删除一个文档（默认）| Delete only one document (default)
  }
});

7. mongodb_create_collection

在MongoDB中创建新集合。

Create a new collection in MongoDB.

use_mcp_tool({
  server_name: "mysql-mongodb",
  tool_name: "mongodb_create_collection",
  arguments: {
    collection: "new_collection",
    options: { capped: true, size: 1000000 }
  }
});

功能特点 | Features

  • 多种连接方法（URL、工作区、直接参数）| Multiple connection methods (URL, workspace, direct)
  • 同时支持MySQL和MongoDB数据库 | Support for both MySQL and MongoDB databases
  • 安全的连接处理和自动清理 | Secure connection handling with automatic cleanup
  • MySQL查询参数的预处理语句支持 | Prepared statement support for MySQL query parameters
  • 两种数据库的架构管理工具 | Schema management tools for both databases
  • 全面的错误处理和验证 | Comprehensive error handling and validation
  • TypeScript支持 | TypeScript support
  • 自动工作区检测 | Automatic workspace detection

安全性 | Security

  • 在MySQL中使用预处理语句防止SQL注入 | Uses prepared statements to prevent SQL injection in MySQL
  • 通过环境变量支持安全密码处理 | Supports secure password handling through environment variables
  • 执行前验证查询和操作 | Validates queries and operations before execution
  • 自动关闭连接 | Automatically closes connections when done

错误处理 | Error Handling

服务器提供以下详细错误消息：| The server provides detailed error messages for:

  • 连接失败 | Connection failures
  • 无效的查询或参数 | Invalid queries or parameters
  • 缺少配置 | Missing configuration
  • 数据库错误 | Database errors
  • 架构验证错误 | Schema validation errors

贡献 | Contributing

欢迎贡献！请随时提交Pull Request到 https://github.com/yaoxiaolinglong/mcp-mongodb-mysql-server

Contributions are welcome! Please feel free to submit a Pull Request to https://github.com/yaoxiaolinglong/mcp-mongodb-mysql-server

致谢 | Acknowledgements

本项目基于 enemyrr/mcp-mysql-server 开发，感谢原作者的贡献。

This project is based on enemyrr/mcp-mysql-server. Thanks to the original author for their contribution.

许可证 | License

MIT

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