mcp-swiss

Instructions

Implementation Reference

• src/modules/weather.ts:164-187 (handler)

  The handler implementation for the "get_weather" tool, which fetches data from the MeteoSwiss API and formats the response.

  case "get_weather": {
    const url = buildUrl(`${BASE}/smn/latest`, {
      locations: args.station as string,
      app: "mcp-swiss",
      version: "0.1.0",
    });
    const data = await fetchJSON<ApiResponse>(url);
    const payload = data?.payload;
    if (Array.isArray(payload)) {
      const ts = payload[0]?.timestamp;
      const readings: Record<string, number> = {};
      for (const p of payload) {
        const key = PARAM_NAMES[p.par] ?? p.par;
        readings[key] = p.val;
      }
      return JSON.stringify({
        station: args.station,
        timestamp: toISO(ts),
        ...readings,
        source: "MeteoSwiss via SwissMetNet",
      });
    }
    return JSON.stringify(data, null, 2);
  }

• src/modules/weather.ts:56-66 (schema)

  The definition and input schema for the "get_weather" tool.

  {
    name: "get_weather",
    description: "Get current weather conditions at a Swiss MeteoSwiss station (e.g. BER=Bern, ZUE=Zürich, LUG=Lugano)",
    inputSchema: {
      type: "object",
      required: ["station"],
      properties: {
        station: { type: "string", description: "Station code (e.g. BER, ZUE, LUG, GVE, SMA)" },
      },
    },
  },