Multi-MCPs

import { Tool, ListToolsRequestSchema, CallToolRequestSchema } from "@modelcontextprotocol/sdk/types.js"; import { Server } from "@modelcontextprotocol/sdk/server/index.js"; import { ToolRegistration } from "../core/types.js"; import { registerOpenWeather } from "../apis/weather/openweather.js"; import { registerGoogleMaps } from "../apis/maps/google.js"; import { registerNewsApi } from "../apis/news/newsapi.js"; import { registerGitHub } from "../apis/github/github.js"; import { registerNotion } from "../apis/notion/notion.js"; import { registerTrello } from "../apis/trello/trello.js"; import { registerSpotify } from "../apis/spotify/spotify.js"; import { registerTwilio } from "../apis/twilio/twilio.js"; import { registerUnsplash } from "../apis/unsplash/unsplash.js"; import { registerCoinGecko } from "../apis/crypto/coingecko.js"; export type Registered = { tools: Tool[]; handlers: Record<string, (args: Record<string, unknown>) => Promise<unknown>>; }; export function registerAllTools(server: Server): Registered { const registrations: ToolRegistration[] = [ registerOpenWeather(), registerGoogleMaps(), registerNewsApi(), registerGitHub(), registerNotion(), registerTrello(), registerSpotify(), registerTwilio(), registerUnsplash(), registerCoinGecko(), ]; const tools = registrations.flatMap((r) => r.tools as Tool[]); const handlers: Record<string, (args: Record<string, unknown>) => Promise<unknown>> = {}; for (const r of registrations) { Object.assign(handlers, r.handlers); } server.setRequestHandler(ListToolsRequestSchema, async () => ({ tools })); server.setRequestHandler(CallToolRequestSchema, async (request) => { const name = request.params.name; const handler = handlers[name]; if (!handler) throw new Error(`Unknown tool: ${name}`); const result = await handler((request.params.arguments as Record<string, unknown>) || {}); return { content: [{ type: "json", json: result }] as any }; }); return { tools, handlers }; }