Cronalert MCP Server

cronalert-mcp

MCP server for CronAlert uptime monitoring. Manage your monitors, check results, and incidents from Claude, Cursor, Windsurf, or any MCP-compatible AI client.

Quick Start

1. Get your API key

Sign up at cronalert.com and create an API key in Settings > API Keys.

2. Add to your MCP client

Claude Desktop — edit ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "cronalert": {
      "command": "npx",
      "args": ["-y", "cronalert-mcp"],
      "env": {
        "CRONALERT_API_KEY": "ca_your_api_key_here"
      }
    }
  }
}

Claude Code — run:

claude mcp add cronalert -e CRONALERT_API_KEY=ca_your_key -- npx -y cronalert-mcp

Cursor — add to .cursor/mcp.json:

{
  "mcpServers": {
    "cronalert": {
      "command": "npx",
      "args": ["-y", "cronalert-mcp"],
      "env": {
        "CRONALERT_API_KEY": "ca_your_api_key_here"
      }
    }
  }
}

Remote server (no install needed) — connect any MCP client to:

https://cronalert.com/mcp

Authenticate with Authorization: Bearer ca_your_key header. Supports Streamable HTTP transport.

3. Start using it

Ask your AI assistant to manage your monitors (see examples below).

Available Tools

Examples

Example 1: Create a monitor and check its status

User prompt: "Create a monitor for https://api.example.com/health that checks every minute, then show me its details."

What happens:

1. The AI calls create_monitor with name: "API Health", url: "https://api.example.com/health", checkInterval: 60
2. CronAlert creates the monitor and returns its ID
3. The AI calls get_monitor with the new ID to show the details

Expected output:

{
  "id": "abc123",
  "name": "API Health",
  "url": "https://api.example.com/health",
  "method": "GET",
  "checkInterval": 60,
  "lastStatus": "unknown",
  "createdAt": "2026-03-08T12:00:00Z"
}

Example 2: Check uptime and respond to incidents

User prompt: "Are any of my monitors down? If so, show me the error details."

What happens:

1. The AI calls list_incidents to check for active incidents
2. If incidents exist, it calls get_monitor for each affected monitor
3. It calls get_check_results to get the recent error details

Expected output (no incidents):

{
  "data": [],
  "message": "No active incidents"
}

Expected output (with incident):

{
  "data": [
    {
      "id": "inc_xyz",
      "monitorId": "abc123",
      "cause": "Expected status 200, got 503",
      "startedAt": "2026-03-08T11:45:00Z"
    }
  ]
}

Example 3: List monitors and pause one for maintenance

User prompt: "List all my monitors, then pause the staging one."

What happens:

1. The AI calls list_monitors to get all monitors
2. It identifies the staging monitor by name
3. It calls update_monitor with id: "staging_id" and paused: true

Expected output:

{
  "id": "staging_id",
  "name": "Staging Server",
  "isPaused": true,
  "lastStatus": "up"
}

Requirements

• Node.js 18+
• A CronAlert account (free tier works)
• An API key from Settings > API Keys

Privacy Policy

This MCP server connects to the CronAlert API (cronalert.com/api/v1/) using your API key. It transmits:

• Monitor configuration (names, URLs, check intervals) when creating or updating monitors
• API key for authentication on every request

Data is processed by CronAlert's servers on Cloudflare's infrastructure. No data is stored locally by the MCP server itself. See our full Privacy Policy for details on data collection, retention, and your rights.

Support

• Website: cronalert.com
• Email: support@cronalert.com
• Issues: GitHub Issues

License

MIT