main.ts•1.64 kB
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { z } from "zod";
const server = new McpServer({
name: "Weather Server",
version: "1.0.0"
});
server.tool(
'get-weather',
'Tool to get the weather of a city',
{
city: z.string().describe("The name of the city to get the weather for")
},
async({ city }) => {
try {
const response = await fetch(`https://geocoding-api.open-meteo.com/v1/search?name=${city}&count=10&language=en&format=json`);
const data = await response.json();
if (data.results.length === 0) {
return {
content: [
{
type: "text",
text: `No results found for city: ${city}`
}
]
};
}
const { latitude, longitude } = data.results[0];
const weatherResponse = await fetch(`https://api.open-meteo.com/v1/forecast?latitude=${latitude}&longitude=${longitude}&hourly=temperature_2m,precipitation,apparent_temperature,relative_humidity_2m&forecast_days=1`);
const weatherData = await weatherResponse.json();
return {
content: [
{
type: "text",
text: JSON.stringify(weatherData, null, 2)
}
]
};
} catch (error) {
return {
content: [
{
type: "text",
text: `Error fetching weather data: ${error.message}`
}
]
};
}
}
);
const transport = new StdioServerTransport();
server.connect(transport);