Alphorn MCP Server

by alphorn-devio.github.alphorn-dev/mcpv0.1.1

Let AI agents notify you on Slack, Telegram, email, SMS, or push via an Alphorn webhook.

0Node.jsstdioofficial registry

context tax

pending

security

pending

cold start

pending

freshness

pending

Our reading of Alphorn, from the data

Alphorn is a communication MCP server from alphorn-dev, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

With 0 GitHub stars it ranks #344 of 858 communication servers we index.

It runs locally on your machine over stdio and needs 2 secrets (ALPHORN_WEBHOOK_URL, ALPHORN_API_KEY); use a scoped, least-privilege key.

Install Alphorn MCP server

claude mcp add alphorn -e ALPHORN_WEBHOOK_URL='<alphorn-webhook-url>' -e ALPHORN_API_KEY='<alphorn-api-key>' -- npx -y @alphorn/mcp

{
  "mcpServers": {
    "alphorn": {
      "command": "npx",
      "args": [
        "-y",
        "@alphorn/mcp"
      ],
      "env": {
        "ALPHORN_WEBHOOK_URL": "<alphorn-webhook-url>",
        "ALPHORN_API_KEY": "<alphorn-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "alphorn": {
      "command": "npx",
      "args": [
        "-y",
        "@alphorn/mcp"
      ],
      "env": {
        "ALPHORN_WEBHOOK_URL": "<alphorn-webhook-url>",
        "ALPHORN_API_KEY": "<alphorn-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "alphorn": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@alphorn/mcp"
      ],
      "env": {
        "ALPHORN_WEBHOOK_URL": "<alphorn-webhook-url>",
        "ALPHORN_API_KEY": "<alphorn-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "alphorn": {
      "command": "npx",
      "args": [
        "-y",
        "@alphorn/mcp"
      ],
      "env": {
        "ALPHORN_WEBHOOK_URL": "<alphorn-webhook-url>",
        "ALPHORN_API_KEY": "<alphorn-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
ALPHORN_WEBHOOK_URL	yes	yes	Webhook Endpoint URL, e.g. https://app.alphorn.dev/n/V1StGXR8_Z5jdHi6B-myT
ALPHORN_API_KEY	—	yes	Webhook API key (alp_...), if the webhook requires one

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
2026-10-12 · 6d ago · GitHub
Latest release
2026-10-12 · 6d ago · GitHub · v0.1.1
Package published
no data · npm/PyPI
Registry entry updated
2026-10-12 · 6d ago · official registry · v0.1.1

How it compares in Communication

Against the most-starred communication servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Alphorn (this)	0	—	not measured	—	local
Skill Seekers	15,180	—	not measured	Active	—
Inbox Zero	12,649	—	not measured	Active	hosted
WhatsApp	6,656	—	not measured	Abandoned	—
OpenScreen	4,532	—	not measured	—	—
Vexa	2,889	—	not measured	Active	hosted

All communication MCP servers

FAQ

›How do I install the Alphorn MCP server in Claude Code?

Run: claude mcp add alphorn -e ALPHORN_WEBHOOK_URL='<alphorn-webhook-url>' -e ALPHORN_API_KEY='<alphorn-api-key>' -- npx -y @alphorn/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Alphorn require an API key?

Yes. It expects ALPHORN_WEBHOOK_URL, ALPHORN_API_KEY, of which 2 are secrets.

›Can I use Alphorn as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Alphorn in the official MCP registry?

Yes, as io.github.alphorn-dev/mcp.

Sources and method

Official MCP Registry entry: updated 2026-10-12
GitHub repository: fetched 2026-10-19
Package registry (npm / PyPI): listed
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.