What is io.github.ByteOverDev/peak-window?

Ranks the best weather windows to climb any peak worldwide, on the sharpest regional model.

How do I install io.github.ByteOverDev/peak-window?

Install io.github.ByteOverDev/peak-window via npm from https://registry.npmjs.org, then add the server config to your MCP client (Claude Desktop, Cursor, or VS Code).

Is io.github.ByteOverDev/peak-window open source?

Yes, io.github.ByteOverDev/peak-window is open source under the MIT license. Source code is available at https://github.com/ByteOverDev/peak-window-mcp-app.

What category does io.github.ByteOverDev/peak-window belong to?

io.github.ByteOverDev/peak-window is listed under Developer Tools MCP servers on MCPFind.

io.github.ByteOverDev/peak-window — MCP Server for Developer Tools

PeakWindow MCP App

An MCP App that analyzes upcoming weather at alpine peaks and trailheads worldwide, ranking the best windows for climbing and ascent. Uses the best available forecast model for each region: GeoSphere Austria AROME (2.5 km) for Central Europe, MeteoSwiss ICON-CH2 (2 km) for the Alpine region, Météo-France AROME (2.5 km) for France, and Open-Meteo globally (~11 km).

What it does

Fetches hourly forecasts (temperature, precipitation, wind, gusts, cloud cover, snow line) from the best available provider for the requested coordinates
Automatically selects the highest-resolution model: GeoSphere (2.5 km, Central Europe), MeteoSwiss (2 km, Alpine region), Météo-France (2.5 km, France), or Open-Meteo (~11 km, global)
Falls through to the next provider on API failure for resilience
Lapse-corrects temperatures to summit elevation using model terrain derived from surface pressure (-6.5 °C/km)
Scores each hour against alpine climbing thresholds and identifies contiguous good-weather windows
Serves an interactive UI (React, uPlot charts) as an MCP App resource with horizon tape, mountain profile, and Ventusky-style chart panels

Requirements

This is an MCP App — it requires an MCP host that supports the Apps protocol to render its interactive UI. Compatible hosts include:

Claude Desktop (macOS / Windows)
ChatGPT (via OpenAI Apps SDK)
Any chat client implementing the MCP Apps spec

The server runs as a standard MCP server over stdio or SSE. The rich UI (charts, horizon tape, mountain profile) renders inline in any compliant host. Without one you still get the scored text output.

Live UI demo — fetches real forecasts in the browser; pick any peak to see its scored windows and real DEM silhouette.

Setup

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "peak-window": {
      "command": "npx",
      "args": ["-y", "peak-window", "--stdio"]
    }
  }
}

Then ask Claude something like: "What's the best weather window to climb Großglockner this week?"

HTTP server

npx peak-window        # starts on http://localhost:3001/mcp

Development

git clone https://github.com/ByteOverDev/peak-window-mcp-app.git
cd peak-window-mcp-app
npm install
npm run dev            # hot reload (UI + server)
npm run serve:stdio    # stdio transport

MCP tool

peak-window — provide lat, lon, and optionally peakName and summitElevationM. Returns scored hours, top weather windows, and a full time-series payload rendered by the embedded UI.

Data sources

Provider	Resolution	Coverage	Via
GeoSphere Austria	2.5 km	Central Europe (5.5–22.1°E, 43–51.8°N)	Direct API
MeteoSwiss ICON-CH2	2 km	Alpine region (0.5–16.5°E, 43–49.9°N)	Open-Meteo
Météo-France AROME	2.5 km	France & surrounds (-9–14°E, 38–55°N)	Open-Meteo
Open-Meteo	~11 km	Global	Direct API

Set up in your AI client

AI clientOperating system

Merge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.

json

{
  "mcpServers": {
    "io-github-byteoverdev-peak-window": {
      "command": "npx",
      "args": [
        "-y",
        "peak-window"
      ]
    }
  }
}

Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.

Claude Desktop setup reference

Compatible MCP Clients

io.github.ByteOverDev/peak-window works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.

Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.

Cursor~/.cursor/mcp.jsonRestart Cursor for changes to take effect.

VS Code.vscode/mcp.jsonReload VS Code window for changes to take effect.

Windsurf~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect.

Claude Code.mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.

io.github.ByteOverDev/peak-window