searchTrainTickets
Find available train tickets between cities on specific dates using the Variflight Tripmatch MCP Server to plan travel routes.
Instructions
Search for train tickets between two cities on a specific date. Date must be in YYYY-MM-DD format.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| from | Yes | Departure city name (e.g. 合肥) | |
| to | Yes | Arrival city name (e.g. 北京) | |
| date | Yes | Travel date in YYYY-MM-DD format. IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate tool instead of hardcoding |
Implementation Reference
- dist/index.js:211-236 (registration)Registration of the searchTrainTickets tool, including description, input schema using Zod, and inline asynchronous handler function that invokes flightService.getTrainTickets and formats the response.
server.tool("searchTrainTickets", "Search for train tickets between two cities on a specific date. Date must be in YYYY-MM-DD format.", { from: z.string().describe("Departure city name (e.g. 合肥)"), to: z.string().describe("Arrival city name (e.g. 北京)"), date: z.string() .regex(/^\d{4}-\d{2}-\d{2}$/) .describe("Travel date in YYYY-MM-DD format. IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate tool instead of hardcoding"), }, async ({ from, to, date }) => { try { const trainTickets = await flightService.getTrainTickets(from, to, date); return { content: [ { type: "text", text: JSON.stringify(trainTickets, null, 2) } ] }; } catch (error) { console.error('Error searching train tickets:', error); return { content: [{ type: "text", text: `Error: ${error.message}` }], isError: true }; } }); - dist/index.js:217-236 (handler)The MCP tool handler function for searchTrainTickets, which calls the underlying service method and returns the result as JSON text content or error.
}, async ({ from, to, date }) => { try { const trainTickets = await flightService.getTrainTickets(from, to, date); return { content: [ { type: "text", text: JSON.stringify(trainTickets, null, 2) } ] }; } catch (error) { console.error('Error searching train tickets:', error); return { content: [{ type: "text", text: `Error: ${error.message}` }], isError: true }; } }); - dist/index.js:212-216 (schema)Zod input schema defining parameters: from (departure city), to (arrival city), date (YYYY-MM-DD format).
from: z.string().describe("Departure city name (e.g. 合肥)"), to: z.string().describe("Arrival city name (e.g. 北京)"), date: z.string() .regex(/^\d{4}-\d{2}-\d{2}$/) .describe("Travel date in YYYY-MM-DD format. IMPORTANT: If user input only cotains month and date, you should use getTodayDate tool to get the year. For today's date, use getTodayDate tool instead of hardcoding"), - dist/services/openalService.js:80-86 (helper)Helper method in OpenAlService that performs the actual API request to the 'trainStanTicket' endpoint with city names and date.
async getTrainTickets(from, to, date) { return this.makeRequest('trainStanTicket', { 'cdep': from, 'carr': to, date }); }