Gmail MCP Server

import {z} from 'zod'; import type {McpServer} from '@modelcontextprotocol/sdk/server/mcp.js'; import type {Config} from './types.js'; import {makeGmailApiCall} from '../utils/gmail-api.js'; import {jsonResult} from '../utils/response.js'; const inputSchema = { messageIds: z.array(z.string()).describe('The IDs of messages to modify'), addLabelIds: z.array(z.string()).optional().describe('Label IDs to add'), removeLabelIds: z.array(z.string()).optional().describe('Label IDs to remove'), }; const outputSchema = z.object({ success: z.literal(true), modifiedCount: z.number(), }); export function registerMessagesBatchModify(server: McpServer, config: Config): void { server.registerTool( 'gmail_messages_batch_modify', { title: 'Batch modify messages', description: 'Modify labels on multiple messages at once', inputSchema, outputSchema, }, async ({messageIds, addLabelIds, removeLabelIds}) => { await makeGmailApiCall('POST', '/users/me/messages/batchModify', config.token, { ids: messageIds, addLabelIds, removeLabelIds, }); return jsonResult({success: true as const, modifiedCount: messageIds.length}); }, ); }