Argent vs Loopback

In-depth architectural comparison of the Argent and Loopback 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 Argent 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 Argent Details

Choose Loopback 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 Loopback Details

Feature & Specification Comparison

Specification	Argent Developer Tools	Loopback Developer Tools
Summary	Drive iOS Simulators, Android emulators, TVs and Electron/web apps from your coding agent	Feedback bus for coding agents: pin feedback on any web app, an agent fixes it, the pin turns green
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": {
    "argent": {
      "command": "npx",
      "args": [
        "-y",
        "@swmansion/argent@latest"
      ]
    }
  }
}

{
  "mcpServers": {
    "loopback": {
      "command": "npx",
      "args": [
        "-y",
        "loopback-mcp-server"
      ]
    }
  }
}

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