Proton Safe MCP vs Baryon — Proton Mail via Bridge

In-depth architectural comparison of the Proton Safe MCP and Baryon — Proton Mail via Bridge 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 Proton Safe MCP 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 Proton Safe MCP Details

Choose Baryon — Proton Mail via Bridge 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 Baryon — Proton Mail via Bridge Details

Feature & Specification Comparison

Specification	Proton Safe MCP Developer Tools	Baryon — Proton Mail via Bridge Developer Tools
Summary	Read and search Proton Mail, then create human-approved drafts without send capability.	Read Proton Mail and save drafts through your local Proton Mail Bridge.
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": {
    "proton-safe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "proton-safe-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "baryon-proton-mail-via-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "baryon-proton-mail-via-bridge"
      ]
    }
  }
}

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