Berlin Transport MCP Server

Implementation Reference

• src/index.ts:21-33 (handler)

  Handler function that performs a search for transport stops using the VBB API by constructing the API URL with the query parameter and fetching the results.

    async ({ query }) => {
      const url = new URL("/locations", VBB_API_BASE);
      url.searchParams.set("query", query);
      url.searchParams.set("poi", "false");
      url.searchParams.set("addresses", "false");
  
      const response = await fetch(url);
      const data = await response.json();
      return {
        content: [{ type: "text", text: JSON.stringify(data, null, 2) }],
      };
    }
  );

• src/index.ts:18-20 (schema)

  Input schema defining the 'query' parameter as a string for the search_stops tool.

  {
    query: z.string().describe("Search query for stops"),
  },

• src/index.ts:16-34 (registration)

  Registration of the 'search_stops' tool on the MCP server, including name, input schema, and handler function.

  this.server.tool(
    "search_stops",
    {
      query: z.string().describe("Search query for stops"),
    },
    async ({ query }) => {
      const url = new URL("/locations", VBB_API_BASE);
      url.searchParams.set("query", query);
      url.searchParams.set("poi", "false");
      url.searchParams.set("addresses", "false");
  
      const response = await fetch(url);
      const data = await response.json();
      return {
        content: [{ type: "text", text: JSON.stringify(data, null, 2) }],
      };
    }
  );