Multi-MySQL MCP Server
Supports connecting to Google Cloud SQL for MySQL with SSL/TLS support.
Provides tools for querying and managing MariaDB databases, including SQL queries with read-only enforcement, table listing, schema listing, health checks, and EXPLAIN analysis.
Provides tools for querying and managing MySQL databases, including SQL queries with read-only enforcement, table listing, schema listing, health checks, and EXPLAIN analysis.
Supports connecting to PlanetScale MySQL-compatible databases with SSL/TLS support.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Multi-MySQL MCP Serverlist tables in the local database with row counts"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Multi-MySQL MCP Server
English
A Model Context Protocol (MCP) server for MySQL and MariaDB — designed for AI coding assistants like Claude Code, Cursor, Windsurf, GitHub Copilot, and any MCP-compatible client.
One server, many databases. Connect multiple MySQL and MariaDB databases through a single MCP server with built-in SQL injection protection, read-only mode, connection pooling, and hot-reload configuration.
Why Use This?
AI-native database access — let Claude, Cursor, or Copilot query your MySQL databases directly
Multi-database — manage all your MySQL connections from one MCP server
Secure by default — state-machine SQL injection parser, read-only transactions, prepared statements
Hot-reload config — change connections without restarting the server
Per-project isolation — use
--labelto expose only relevant databases7 powerful tools — query, describe, explain, health check and more
Broad compatibility — MySQL 5.7–9.x, MariaDB 10.x–11.x, AWS RDS, Azure, GCP, PlanetScale
Tools
Tool | Description |
| List all configured database connections with status |
| Execute SQL queries with read-only enforcement and SQL injection protection |
| List tables with row counts, storage engine (InnoDB, MyISAM), and data size |
| Show columns, types, indexes, primary keys, foreign keys, and constraints |
| List all databases/schemas available on the MySQL server |
| Test connectivity, MySQL version, and response latency |
| Run EXPLAIN ANALYZE with automatic ROLLBACK for safety |
Quick Start
Install
git clone https://github.com/VKirill/multi-mysql-mcp-server.git
cd multi-mysql-mcp-server
npm install
npm run buildConfigure
Create ~/.mcp-mysql/config.json (or use --config to specify a custom path):
{
"connections": [
{
"label": "local",
"host": "localhost",
"port": 3306,
"user": "dev",
"password": "devpass123",
"database": "myapp"
},
{
"label": "production",
"url": "mysql://${PROD_USER}:${PROD_PASS}@db.example.com:3306/prod_db",
"readOnly": true,
"ssl": true
}
]
}Add to Claude Code
claude mcp add mysql -- node /path/to/dist/index.js --config ~/.mcp-mysql/config.jsonOr add to ~/.claude.json:
{
"mcpServers": {
"mysql": {
"type": "stdio",
"command": "node",
"args": ["/path/to/dist/index.js", "--config", "/path/to/config.json"]
}
}
}Add to Cursor
Add to .cursor/mcp.json:
{
"mcpServers": {
"mysql": {
"command": "node",
"args": ["/path/to/dist/index.js", "--config", "/path/to/config.json"]
}
}
}Docker
docker build -t mcp-mysql .
docker run -v /path/to/config.json:/app/config.json mcp-mysql --config /app/config.jsonConfiguration
Connection Fields
Field | Type | Required | Default | Description |
| string | Yes | — | Unique identifier for the database |
| string | * | — | MySQL server hostname |
| number | No | 3306 | MySQL server port |
| string | * | — | Database username |
| string | No |
| Database password |
| string | * | — | Default database/schema name |
| string | * | — | MySQL connection URL (alternative to host/user/database) |
| bool/object | No | — | Enable SSL/TLS (supports AWS RDS, Azure, GCP Cloud SQL) |
| boolean | No |
| Enforce read-only transactions |
| boolean | No |
| Enable/disable this connection |
| number | No |
| Maximum pool connections (1–100) |
* Either url or host + user + database is required.
Environment Variables in Config
Use ${VAR} or ${VAR:-default} syntax in any config string value:
{
"host": "${MYSQL_HOST:-localhost}",
"user": "${MYSQL_USER}",
"password": "${MYSQL_PASSWORD}"
}CLI Options
Option | Description |
| Path to config file (default: |
| Restrict server to a single database (per-project isolation) |
Environment variable: MCP_MYSQL_CONFIG — alternative config file path.
Security
SQL injection protection — state-machine parser detects multi-statement queries, handles MySQL-specific syntax (backtick identifiers,
#comments, backslash escapes)DDL protection — blocks CREATE, DROP, ALTER, TRUNCATE statements
Prepared statements — all user parameters go through
connection.execute()with?placeholdersRead-only by default —
SET SESSION TRANSACTION READ ONLYwraps all queries in transactionsEXPLAIN safety — EXPLAIN ANALYZE always wrapped in transaction with ROLLBACK
Config permissions — warns if config file is world-readable on Unix
Zod validation — config file validated with strict schemas
See SECURITY.md for the full security model and responsible disclosure policy.
Compatibility
MySQL 5.7, 8.0, 8.4, 9.x
MariaDB 10.x, 11.x
Cloud: AWS RDS, Azure Database for MySQL, Google Cloud SQL, PlanetScale, Aiven
Node.js >= 18
MCP clients: Claude Code, Cursor, Windsurf, GitHub Copilot, VS Code, any MCP-compatible tool
Related Projects
multi-postgres-mcp-server — Same architecture for PostgreSQL
Related MCP server: MySQL MCP Server
Русский
MCP-сервер для MySQL и MariaDB — предназначен для AI-ассистентов: Claude Code, Cursor, Windsurf, GitHub Copilot и любых MCP-совместимых клиентов.
Один сервер — много баз данных. Подключайте несколько MySQL и MariaDB баз через один MCP-сервер со встроенной защитой от SQL-инъекций, режимом read-only, пулом соединений и горячей перезагрузкой конфигурации.
Преимущества
AI-нативный доступ к БД — Claude, Cursor или Copilot напрямую запрашивают ваши MySQL базы
Мульти-база — все MySQL-подключения в одном MCP-сервере
Безопасность по умолчанию — state-machine парсер SQL-инъекций, read-only транзакции, prepared statements
Горячая перезагрузка — меняйте подключения без перезапуска сервера
Изоляция по проектам —
--labelпоказывает только нужные базы7 инструментов — запросы, описание таблиц, EXPLAIN, health check и др.
Широкая совместимость — MySQL 5.7–9.x, MariaDB 10.x–11.x, AWS RDS, Azure, GCP, PlanetScale
Инструменты
Инструмент | Описание |
| Список всех настроенных подключений к БД |
| Выполнение SQL-запросов с read-only и защитой от инъекций |
| Список таблиц: кол-во строк, движок (InnoDB, MyISAM), размер |
| Колонки, типы, индексы, первичные и внешние ключи, ограничения |
| Список всех баз данных/схем на сервере MySQL |
| Проверка соединения, версия MySQL, задержка |
| EXPLAIN ANALYZE с автоматическим ROLLBACK |
Быстрый старт
git clone https://github.com/VKirill/multi-mysql-mcp-server.git
cd multi-mysql-mcp-server
npm install
npm run buildСоздайте ~/.mcp-mysql/config.json:
{
"connections": [
{
"label": "local",
"host": "localhost",
"port": 3306,
"user": "dev",
"password": "devpass123",
"database": "myapp"
}
]
}Добавьте в Claude Code (~/.claude.json):
{
"mcpServers": {
"mysql": {
"type": "stdio",
"command": "node",
"args": ["путь/до/dist/index.js", "--config", "путь/до/config.json"]
}
}
}Безопасность
Защита от SQL-инъекций — state-machine парсер обрабатывает backtick-идентификаторы,
#комментарии,\экранированиеЗащита от DDL — блокирует CREATE, DROP, ALTER, TRUNCATE
Prepared statements — параметры через
connection.execute()с?плейсхолдерамиRead-only по умолчанию —
SET SESSION TRANSACTION READ ONLYEXPLAIN — всегда в транзакции с ROLLBACK
Валидация конфига — Zod-схемы
Совместимость
MySQL 5.7, 8.0, 8.4, 9.x | MariaDB 10.x, 11.x
AWS RDS, Azure Database for MySQL, Google Cloud SQL, PlanetScale, Aiven
Node.js >= 18
Claude Code, Cursor, Windsurf, GitHub Copilot, VS Code
中文
MySQL 和 MariaDB 的 MCP 服务器 — 专为 AI 编码助手设计:Claude Code、Cursor、Windsurf、GitHub Copilot 以及任何 MCP 兼容客户端。
一个服务器,多个数据库。 通过单个 MCP 服务器连接多个 MySQL 和 MariaDB 数据库,内置 SQL 注入防护、只读模式、连接池和热重载配置。
优势
AI 原生数据库访问 — 让 Claude、Cursor 或 Copilot 直接查询你的 MySQL 数据库
多数据库 — 在一个 MCP 服务器中管理所有 MySQL 连接
默认安全 — 状态机 SQL 注入解析器、只读事务、预处理语句
热重载配置 — 更改连接无需重启服务器
项目隔离 — 使用
--label仅暴露相关数据库7 个工具 — 查询、表描述、EXPLAIN、健康检查等
广泛兼容 — MySQL 5.7–9.x、MariaDB 10.x–11.x、AWS RDS、Azure、GCP、PlanetScale
工具列表
工具 | 说明 |
| 列出所有已配置的数据库连接及状态 |
| 执行 SQL 查询,强制只读模式并防止 SQL 注入 |
| 列出表:行数、存储引擎(InnoDB、MyISAM)、数据大小 |
| 显示列、类型、索引、主键、外键和约束 |
| 列出 MySQL 服务器上所有数据库/模式 |
| 测试连接、MySQL 版本和响应延迟 |
| 执行 EXPLAIN ANALYZE 并自动 ROLLBACK |
快速开始
git clone https://github.com/VKirill/multi-mysql-mcp-server.git
cd multi-mysql-mcp-server
npm install
npm run build创建 ~/.mcp-mysql/config.json:
{
"connections": [
{
"label": "local",
"host": "localhost",
"port": 3306,
"user": "dev",
"password": "devpass123",
"database": "myapp"
}
]
}添加到 Claude Code 配置(~/.claude.json):
{
"mcpServers": {
"mysql": {
"type": "stdio",
"command": "node",
"args": ["dist/index.js的路径", "--config", "config.json的路径"]
}
}
}安全性
SQL 注入防护 — 状态机解析器处理反引号标识符、
#注释、\转义DDL 防护 — 阻止 CREATE、DROP、ALTER、TRUNCATE 语句
预处理语句 — 通过
connection.execute()使用?占位符默认只读 —
SET SESSION TRANSACTION READ ONLYEXPLAIN 安全 — 始终在事务中执行并 ROLLBACK
配置验证 — Zod 模式验证
兼容性
MySQL 5.7、8.0、8.4、9.x | MariaDB 10.x、11.x
AWS RDS、Azure Database for MySQL、Google Cloud SQL、PlanetScale、Aiven
Node.js >= 18
Claude Code、Cursor、Windsurf、GitHub Copilot、VS Code
Contributing
See CONTRIBUTING.md for development setup and guidelines.
License
MIT — see LICENSE for details.
This server cannot be deployed
Maintenance
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