Variflight Tripmatch MCP Server

Instructions

Implementation Reference

• dist/index.js:186-209 (registration)

  Registration of the 'getFutureWeatherByAirport' MCP tool, including description, Zod input schema, and inline handler function that delegates to flightService.getAirportWeather.

  server.tool('getFutureWeatherByAirport', 'Get airport future weather for 3days (today、tomorrow、the day after tomorrow) by airport IATA 3-letter code. Airport codes should be IATA 3-letter codes (e.g. PEK for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei).', {
      airport: z.string()
          .regex(/^[A-Z]{3}$/)
          .describe("Airport IATA 3-letter code (e.g. PEK for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei)")
  }, async ({ airport }) => {
      try {
          const weather = await flightService.getAirportWeather(airport);
          return {
              content: [
                  {
                      type: "text",
                      text: JSON.stringify(weather, null, 2)
                  }
              ]
          };
      }
      catch (error) {
          console.error('Error getting airport weather:', error);
          return {
              content: [{ type: "text", text: `Error: ${error.message}` }],
              isError: true
          };
      }
  });

• dist/services/openalService.js:56-61 (helper)

  Helper method in OpenAlService that calls the 'futureAirportWeather' API endpoint with the airport code and type=1.

  async getAirportWeather(airport) {
      return this.makeRequest('futureAirportWeather', {
          "code": airport,
          "type": "1"
      });
  }

• dist/services/openalService.js:3-21 (helper)

  Core helper method in OpenAlService that performs POST requests to the configured API base URL with endpoint and params.

  async makeRequest(endpoint, params) {
      const url = new URL(config.api.baseUrl);
      const request_body = {
          endpoint: endpoint,
          params: params
      };
      const response = await fetch(url.toString(), {
          method: 'post',
          headers: {
              'X-VARIFLIGHT-KEY': config.api.apiKey || '',
              'Content-Type': 'application/json',
          },
          body: JSON.stringify(request_body),
      });
      if (!response.ok) {
          throw new Error(`API request failed: ${response.status} ${response.statusText}`);
      }
      return response.json();
  }

• dist/index.js:187-189 (schema)

  Zod schema definition for the 'airport' input parameter validating IATA 3-letter code.

  airport: z.string()
      .regex(/^[A-Z]{3}$/)
      .describe("Airport IATA 3-letter code (e.g. PEK for Beijing, SHA for Shanghai, CAN for Guangzhou, HFE for Hefei)")