Google Calendar MCP Server

#!/usr/bin/env node import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js" import { google } from "googleapis" import { z } from "zod" import { registerCalendarTools } from "./tools/calendars.js" import { registerEventTools } from "./tools/events.js" import { registerAuthTools } from "./tools/auth.js" export const configSchema = z.object({ clientId: z .string() .describe( "Google OAuth2 Client ID from Google Cloud Console (APIs & Services > Credentials)", ), clientSecret: z .string() .describe( "Google OAuth2 Client Secret from Google Cloud Console", ), redirectUri: z .string() .default("http://localhost:3000/oauth2callback") .describe( "OAuth2 redirect URI (must match the one configured in Google Cloud Console)", ), refreshToken: z .string() .optional() .describe( "Optional: Pre-existing refresh token for accessing user's calendar data", ), }) export default function ({ config }: { config: z.infer<typeof configSchema> }) { try { console.log("Starting Google Calendar MCP Server...") // Create a new MCP server const server = new McpServer({ name: "Google Calendar MCP Server", version: "1.0.0", }) // Initialize OAuth2 client const oauth2Client = new google.auth.OAuth2( config.clientId, config.clientSecret, config.redirectUri ) // Set refresh token if provided if (config.refreshToken) { oauth2Client.setCredentials({ refresh_token: config.refreshToken, }) } // Initialize Google Calendar API client const calendar = google.calendar({ version: "v3", auth: oauth2Client }) // Register tool groups registerAuthTools(server, oauth2Client) registerCalendarTools(server, calendar, oauth2Client) registerEventTools(server, calendar, oauth2Client) return server.server } catch (e) { console.error(e) throw e } }