crafty-mcp

npm

An MCP (Model Context Protocol) server for Crafty Controller 4 — manage your Minecraft servers via AI assistants.

The first MCP server for Crafty Controller.

What it does

crafty-mcp exposes the full Crafty Controller 4 API V2 as MCP tools, letting AI assistants like Claude manage your Minecraft servers using natural language. Start and stop servers, send console commands, manage players, edit server files, configure backups, set up scheduled tasks, manage webhooks, and administer users — all without leaving your AI chat.

Quick Start

Add to your MCP client config:

Claude Desktop (~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows):

config.json

{
  "mcpServers": {
    "crafty": {
      "command": "npx",
      "args": ["-y", "crafty-mcp"],
      "env": {
        "CRAFTY_URL": "https://localhost:8443",
        "CRAFTY_API_TOKEN": "your-bearer-token",
        "CRAFTY_ALLOW_INSECURE": "true"
      }
    }
  }
}

Claude Code:

Terminal

claude mcp add crafty npx -y crafty-mcp \
  --env CRAFTY_URL=https://localhost:8443 \
  --env CRAFTY_API_TOKEN=your-token \
  --env CRAFTY_ALLOW_INSECURE=true

Cursor (.cursor/mcp.json):

config.json

{
  "mcpServers": {
    "crafty": {
      "command": "npx",
      "args": ["-y", "crafty-mcp"],
      "env": {
        "CRAFTY_URL": "https://localhost:8443",
        "CRAFTY_API_TOKEN": "your-bearer-token",
        "CRAFTY_ALLOW_INSECURE": "true"
      }
    }
  }
}

Configuration

Variable	Required	Description
`CRAFTY_URL`	Yes	Crafty Controller base URL (e.g. `https://localhost:8443`)
`CRAFTY_API_TOKEN`	No*	Bearer token from Crafty UI
`CRAFTY_ALLOW_INSECURE`	No	Set to `true` to allow self-signed certificates (Crafty's default)
`CRAFTY_TIMEOUT`	No	Request timeout in milliseconds (default: `30000`)

*CRAFTY_API_TOKEN is optional if you authenticate dynamically using the crafty_login tool, but recommended for most setups.

Getting your API token

Open Crafty Controller in your browser
Click your username -> Profile
Scroll to API Keys section
Click Generate Key
Copy the token and use it as CRAFTY_API_TOKEN

A superuser token has full access to all servers and operations.

Available Tools

Auth / Meta

Tool	Description
`crafty_login`	Login with username/password to get a bearer token
`crafty_api_info`	Get API version info and MOTD
`crafty_list_schemas`	List available JSON schema names
`crafty_get_schema`	Get a specific JSON schema by name

Crafty Host (System)

Tool	Description
`crafty_get_stats`	Get host CPU, RAM, disk, and boot time
`crafty_get_config`	Get Crafty panel configuration
`crafty_update_config`	Update Crafty panel configuration

Servers — CRUD & Info

Tool	Description
`server_list`	List all managed Minecraft servers
`server_get`	Get a server's full configuration
`server_create`	Create a new Minecraft server (Java, Bedrock, custom)
`server_update`	Update server configuration
`server_delete`	Permanently delete a server

Servers — Runtime & Logs

Tool	Description
`server_get_stats`	Get live stats: CPU/RAM, players online, version, world
`server_get_logs`	Get server console log lines
`server_get_history`	Get historical stats for graphing

Servers — Actions

Tool	Description
`server_start`	Start a server
`server_stop`	Stop a server
`server_restart`	Restart a server
`server_kill`	Force-kill a server process
`server_backup`	Trigger an immediate backup
`server_update_executable`	Update the server jar/executable
`server_clone`	Clone an existing server

Servers — Console

Tool	Description
`server_send_command`	Send a command to the server console

Servers — Files

Tool	Description
`server_list_files`	List files/directories in a server directory
`server_get_file`	Read a file's contents
`server_update_file`	Write or update a file
`server_delete_file`	Delete files or directories
`server_create_file`	Create a new file
`server_create_directory`	Create a new directory
`server_rename_file`	Rename or move a file
`server_decompress_file`	Decompress an archive

Servers — Backups

Tool	Description
`server_list_backups`	List all backups with timestamps and sizes
`server_get_backup_config`	Get backup configuration
`server_update_backup_config`	Update backup settings
`server_restore_backup`	Restore a specific backup
`server_delete_backup`	Delete a backup

Servers — Scheduled Tasks

Tool	Description
`server_list_tasks`	List all scheduled tasks
`server_get_task`	Get a task's configuration
`server_create_task`	Create a scheduled task (interval or cron)
`server_update_task`	Update a scheduled task
`server_delete_task`	Delete a scheduled task
`server_run_task`	Manually trigger a task

Servers — Webhooks

Tool	Description
`server_list_webhooks`	List all webhooks
`server_get_webhook`	Get a webhook's details
`server_create_webhook`	Create a webhook (Discord, etc.)
`server_update_webhook`	Update a webhook
`server_delete_webhook`	Delete a webhook
`server_test_webhook`	Send a test webhook message

Users

Tool	Description
`user_list`	List all Crafty users
`user_get`	Get a user's details (use `@me` for yourself)
`user_create`	Create a new user
`user_update`	Update a user
`user_delete`	Delete a user
`user_get_permissions`	Get user permissions
`user_update_permissions`	Update user permissions
`user_get_api_keys`	List a user's API keys
`user_create_api_key`	Generate a new API key
`user_delete_api_key`	Revoke an API key

Roles

Tool	Description
`role_list`	List all roles
`role_get`	Get a role's details
`role_create`	Create a new role
`role_update`	Update a role
`role_delete`	Delete a role

Examples

Code

"What servers are running?" -> server_list + server_get_stats
"Start my SMP server" -> server_start
"How many players are online on survival?" -> server_get_stats
"Send 'say Server restarting in 5 minutes' to all servers" -> server_list + server_send_command
"Back up all servers" -> server_list + server_backup (for each)
"Show me the server.properties for my SMP server" -> server_get_file
"Create a Paper 1.21.4 server on port 25566" -> server_create
"Set up a daily backup at 3 AM" -> server_create_task (cron: "0 3 * * *")
"Add a Discord webhook that fires when the server starts" -> server_create_webhook
"Op PlayerName on the survival server" -> server_send_command

Development

bash

git clone https://github.com/HadiCherkaoui/crafty-mcp.git
cd crafty-mcp
npm install
npm run build

# Test locally
CRAFTY_URL=https://localhost:8443 \
CRAFTY_API_TOKEN=your-token \
CRAFTY_ALLOW_INSECURE=true \
node dist/index.js

# Inspect with MCP Inspector
npx @modelcontextprotocol/inspector node dist/index.js

Crafty MCP README