What is the key difference between Cal Scheduler and Telnyx?

Cal Scheduler belongs to the Developer Tools category with local stdio execution, while Telnyx belongs to the Developer Tools category with local stdio execution.

How do I install Cal Scheduler or Telnyx 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 Cal Scheduler and Telnyx free or paid?

Cal Scheduler operates under a Free / Open Source model (No auth required). Telnyx operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Cal Scheduler lists 0 tools with 0 views and 1 GitHub stars. Telnyx lists 0 tools with 0 views and 197 GitHub stars.

Can I use both Cal Scheduler and Telnyx 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.

Side-by-Side Model Context Protocol Comparison

Cal Scheduler vs Telnyx

In-depth architectural comparison of the Cal Scheduler and Telnyx 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

Cal Scheduler

Developer Tools · Local stdio

Quality: 36/100 (Fair) | Auth: No auth required

Telnyx

Developer Tools · Local stdio

Quality: 43/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Cal Scheduler if you need specialized Developer Tools tools running via a local process. Choose Telnyx if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Cal Scheduler 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 Cal Scheduler Details

Choose Telnyx 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 Telnyx Details

Feature & Specification Comparison

Specification	Cal Scheduler Developer Tools	T Telnyx Developer Tools
Summary	Timezone-correct CalDAV scheduling MCP server with validated recurrence and single-occurrence edits.	Official TypeScript library for the Telnyx API
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Cal Scheduler Tools (0)

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

Telnyx 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).

Cal Scheduler Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "cal-scheduler": {
      "command": "uvx",
      "args": [
        "--from"
      ]
    }
  }
}

Telnyx Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "telnyx-2": {
      "command": "npx",
      "args": [
        "-y",
        "telnyx-2"
      ]
    }
  }
}

Frequently Asked Questions

Cal Scheduler is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Telnyx belongs to Developer Tools using local stdio subprocess. Select Cal Scheduler when you need capabilities focused on developer tools and Telnyx when you require tools for developer tools.

More alternatives to Cal Scheduler More alternatives to Telnyx Developer Tools category hub