Once vs Own Your AI

In-depth architectural comparison of the Once and Own Your AI 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 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

O

Choose Own Your AI 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 Own Your AI Details

Feature & Specification Comparison

Specification	Once Developer Tools	O Own Your AI Developer Tools
Summary	Run a side effect exactly once under retries, redelivery, and concurrent workers.	AI tools that run on your own machine: what each does, installs like, and costs.
Category & Scope	Developer Tools	Developer Tools
Quality signal

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

{
  "mcpServers": {
    "own-your-ai": {
      "command": "npx",
      "args": [
        "-y",
        "own-your-ai"
      ]
    }
  }
}

Related MCP Server Comparisons