MCP Server Docker vs Once

In-depth architectural comparison of the MCP Server Docker and Once MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose MCP Server Docker when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• You have access to required keys: DOCKER_HOST.
• Primary tools included: Natural-language container composition prompt, Container lifecycle management, Image build, pull, push, and removal.

Explore MCP Server Docker Details

Choose Once when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Once Details

Feature & Specification Comparison

Specification	MCP Server Docker ckreiling Developer Tools	Once Developer Tools
Summary	Integrate with Docker to manage containers, images, volumes, and networks.	Run a side effect exactly once under retries, redelivery, and concurrent workers.
Category & Scope	Developer Tools	Developer Tools

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "ckreiling-mcp-server-docker": {
      "command": "uvx",
      "args": [
        "mcp-server-docker"
      ],
      "env": {
        "DOCKER_HOST": "YOUR_DOCKER_HOST_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "once": {
      "command": "uvx",
      "args": [
        "once-kernel"
      ]
    }
  }
}

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