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Hetzner Cloud MCP Server

@wbf-solutions

基本信息

分类

开发工具

许可证

MIT

传输方式

stdio

作者

wbf-solutions

提交者

wbf

关于 Hetzner Cloud MCP Server

The Hetzner MCP with SSH server management. 60 tools — Cloud API + SSH in one MCP server.

#hetzner-cloud-api#hetzner-cloud-ssh#mcp-server

Hetzner Cloud MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "hetzner-cloud": {
      "url": "https://your-server.com/api.php?mcp=sse&key=YOUR_API_KEY"
    }
  }
}

Hetzner Cloud MCP Server 工具

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概览

What is Hetzner Cloud MCP Server?

An MCP server that lets you manage Hetzner Cloud infrastructure from any MCP-compatible client (Claude.ai, Claude Desktop, VS Code, Cursor). It combines the Hetzner Cloud API (25 tools for power, metrics, snapshots, firewalls, DNS) with a full SSH management layer (27 tools for services, logs, Nginx, MySQL, system health) — 60 tools total. Built for sysadmins and developers who need both API and server‑level control.

How to use Hetzner Cloud MCP Server?

Clone the repository, install dependencies with Composer, copy .env.example to .env, and set your Hetzner API token, server details, SSH key path, and an API key. Configure an Nginx reverse proxy with PHP‑FPM (fastcgi_buffering off required for SSE). Then add a custom connector in Claude.ai, Claude Desktop, or another client, pointing to https://yourdomain.com/api.php with the API key passed as ?key=XXX or Authorization: Bearer. Tools are invoked via MCP tool calls.

Key features of Hetzner Cloud MCP Server

  • Two management layers: Cloud API and SSH
  • 60 tools covering server, DNS, and SSH operations
  • Dynamic multi‑server configuration (1 to N servers)
  • Destructive guards (confirmation required for dangerous ops)
  • Transport via SSE and Streamable HTTP
  • Self‑hosted, open source (MIT), PHP 8.1+

Use cases of Hetzner Cloud MCP Server

  • Manage Hetzner servers through Claude.ai or Claude Desktop from any device
  • Perform sysadmin tasks: restart services, tail logs, check memory, firewall status
  • Automate server provisioning: snapshots, backups, rescale, rebuild
  • Manage DNS zones and records without leaving your AI chat
  • Monitor system health and run read‑only SQL queries

常见问题

1

What are the two management layers?

Layer 1 (Hetzner Cloud API) handles server power, metrics, snapshots, firewalls, DNS, rescue, rebuild — works even if the OS is unresponsive. Layer 2 (SSH) gives real sysadmin tools: service control, logs, Nginx, MySQL, supervisor, cron, UFW, disk/memory/CPU monitoring.

2

How do I authenticate with this MCP server?

You can run without authentication (behind a VPN/firewall), use a static API key (`MCP_API_KEY`), or add OAuth 2.1 token introspection for multi‑user deployments. Clients pass the key as `?key=XXX` or via `Authorization: Bearer` header.

3

Can I manage multiple servers?

Yes. Define any number of servers in the `.env` file with `SERVERS=web,staging` and individual `SERVER_*` variables for ID, IP, SSH user, and aliases. SSH tools are auto‑directed to the configured server.

4

What security measures are in place?

Dangerous operations require `confirm=true`. SSH commands block 29 dangerous patterns (e.g., `rm -rf`, `dd`, `mkfs`). SQL is restricted to `SELECT`, `SHOW`, `DESCRIBE`, `EXPLAIN` only. Rate limiting uses atomic `flock()` per IP.

5

Do I need SSH access for all tools?

No. Cloud API tools (server power, metrics, snapshots, firewalls, DNS) work without SSH. SSH‑based tools (service management, logs, MySQL, etc.) require an SSH key configured for the server and `SSH_KEY_PATH` set in the `.env` file. If SSH is not configured, those tools are automatically disabled.

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