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

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

How do I install Calendar Bridge or Messages 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 Calendar Bridge and Messages Bridge free or paid?

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

Which MCP server has more tools and community activity?

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

Can I use both Calendar Bridge and Messages 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 Calendar Bridge or Messages 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 Calendar Bridge and Messages Bridge free to use, or do they require API keys?

Calendar Bridge is listed under a Free / Open Source model with No auth required . Messages 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 Calendar Bridge and Messages Bridge at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both calendar-bridge and messages-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, Calendar Bridge has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Messages 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

Calendar Bridge vs Messages Bridge

In-depth architectural comparison of the Calendar Bridge and Messages 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

Calendar Bridge

Cloud Platforms · Local stdio

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

Messages Bridge

Cloud Platforms · Local stdio

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

Verdict Summary: Choose Calendar Bridge if you need specialized Cloud Platforms tools running via a local process. Choose Messages 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 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

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

Feature & Specification Comparison

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

Tools & Capabilities Breakdown

Calendar Bridge Tools (0)

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

Messages 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).

Calendar Bridge Configuration

mcpServers (Claude Desktop / Cursor)

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

Messages Bridge Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

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

More alternatives to Calendar Bridge More alternatives to Messages Bridge Cloud Platforms category hub