Fettle MCP

The Fettle MCP server enables AI agents to manage uptime monitoring operations. It allows users to list and create monitors, manage tags, handle incidents, and configure maintenance windows. The server supports both remote execution via a hosted endpoint with OAuth or API keys, and local execution via the fettle-mcp npm package over stdio, ensuring agents can interact with Fettle's monitoring infrastructure securely.

Visit Fettle

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Vendor evidenceLocal stdioSource reviewed; not executedOperated by Fettle

You need:Requires Node.js 20 or newer and an API keyCreate the key in Settings → API KeysRead tools need read access; write tools need write access

Vendor documentation

What you can do with it

List monitors in the organization by name, target, type, status or tag
Create one monitor that checks a URL, host or port on a schedule
List incidents with the cause of each one and acknowledge them
List tags used in the organization with monitor and heartbeat counts

Source and maintenance

Vendor evidenceRegistry 1.0.0

mcp-registry: sh.fettle/mcp@1.0.0 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

fettle-mcp 1.0.0

npmnpx

fettle-mcp package definition

{
  "version": "1.0.0",
  "transport": "stdio",
  "identifier": "fettle-mcp",
  "runtimeHint": "npx",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "FETTLE_API_KEY",
      "format": "string",
      "isRequired": true,
      "description": "Fettle API key (Settings → API Keys at https://fettle.sh). Read scope lists and inspects; write scope is needed to create, change or pause anything."
    },
    {
      "name": "FETTLE_API_URL",
      "format": "string",
      "default": "https://api.fettle.sh",
      "description": "Base URL of the Fettle API. Only set this to point the server at something other than production."
    },
    {
      "name": "FETTLE_TIMEOUT_MS",
      "format": "number",
      "default": "30000",
      "description": "How long one tool call may take before it is abandoned."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "fettle-mcp-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "fettle-mcp@1.0.0"
      ],
      "env": {
        "FETTLE_API_KEY": "<YOUR_FETTLE_API_KEY>",
        "FETTLE_API_URL": "<YOUR_FETTLE_API_URL>",
        "FETTLE_TIMEOUT_MS": "<YOUR_FETTLE_TIMEOUT_MS>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "fettle-mcp-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "fettle-mcp@1.0.0"
      ],
      "env": {
        "FETTLE_API_KEY": "<YOUR_FETTLE_API_KEY>",
        "FETTLE_API_URL": "<YOUR_FETTLE_API_URL>",
        "FETTLE_TIMEOUT_MS": "<YOUR_FETTLE_TIMEOUT_MS>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "fettle-mcp-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "fettle-mcp@1.0.0"
      ],
      "env": {
        "FETTLE_API_KEY": "<YOUR_FETTLE_API_KEY>",
        "FETTLE_API_URL": "<YOUR_FETTLE_API_URL>",
        "FETTLE_TIMEOUT_MS": "<YOUR_FETTLE_TIMEOUT_MS>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "fettle-mcp-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "fettle-mcp@1.0.0"
      ],
      "env": {
        "FETTLE_API_KEY": "<YOUR_FETTLE_API_KEY>",
        "FETTLE_API_URL": "<YOUR_FETTLE_API_URL>",
        "FETTLE_TIMEOUT_MS": "<YOUR_FETTLE_TIMEOUT_MS>"
      }
    }
  }
}

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