What is the key difference between Messages Bridge and Calendar Bridge?

Messages Bridge belongs to the Cloud Platforms category with local stdio execution, while Calendar Bridge belongs to the Cloud Platforms category with local stdio execution.

How do I install Messages Bridge or Calendar Bridge in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Messages Bridge and Calendar Bridge free or paid?

Messages Bridge operates under a Free / Open Source model (No auth required). Calendar Bridge operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Messages Bridge lists 0 tools with 0 views and 0 GitHub stars. Calendar Bridge lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Messages Bridge and Calendar Bridge together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install Messages Bridge or Calendar Bridge in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Messages Bridge and Calendar Bridge free to use, or do they require API keys?

Messages Bridge is listed under a Free / Open Source model with No auth required . Calendar Bridge operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Messages Bridge and Calendar Bridge at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both messages-bridge and calendar-bridge as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Messages Bridge has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Calendar Bridge holds a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Messages Bridge vs Calendar Bridge

In-depth architectural comparison of the Messages Bridge and Calendar 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.

At a Glance & Executive Verdict

Messages Bridge

Cloud Platforms · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Calendar Bridge

Cloud Platforms · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Messages Bridge if you need specialized Cloud Platforms tools running via a local process. Choose Calendar Bridge if your workspace requires Cloud Platforms integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Messages Bridge when:

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

Explore Messages Bridge Details

Choose Calendar Bridge when:

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

Explore Calendar Bridge Details

Feature & Specification Comparison

Specification	M Messages Bridge Cloud Platforms	C Calendar Bridge Cloud Platforms
Summary	MCP connector for iMessage & Contacts via a local Mac agent + Vercel relay	Connects ChatGPT to your Apple Calendar via a local Mac agent + Vercel relay
Category & Scope	Cloud Platforms	Cloud Platforms
Quality signal

Tools & Capabilities Breakdown

Messages Bridge Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Calendar Bridge Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

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).

Messages Bridge Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "messages-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "messages-bridge"
      ]
    }
  }
}

Calendar Bridge Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "calendar-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "calendar-bridge"
      ]
    }
  }
}

Frequently Asked Questions

Messages Bridge is categorized under Cloud Platforms and uses a local stdio subprocess. In contrast, Calendar Bridge belongs to Cloud Platforms using local stdio subprocess. Select Messages Bridge when you need capabilities focused on cloud platforms and Calendar Bridge when you require tools for cloud platforms.

More alternatives to Messages Bridge More alternatives to Calendar Bridge Cloud Platforms category hub Canonical compare URL