"Multi-platform information search across productivity and knowledge tools" matching MCP servers:

Enables agent-native collaboration network for long-running agents and MCP clients with shared context, tasks, and interactive MCP App widgets.

Enables Claude to read, search, send, draft, and organize email across multiple independently authenticated Gmail accounts through one local MCP connection. It supports account aliases, per-account default From addresses, dry-run sends, and draft-only replies for safer multi-account email management.

Enables safe, multi-account Gmail and Microsoft 365 operations with explicit aliases, including searching, reading, drafting, archiving, labels/categories, and human-reviewed sending via a localhost approval window.

Enables Claude Code and Claude Desktop to search, read, and manage multiple named Gmail inboxes from a self-hosted MCP server, keeping each account's results separate and authenticated through user-owned OAuth tokens.

A shared communication bus for multiple agents using NATS and MCP, enabling MCP clients to list, message, and query agents.

Enables an AI client to search Gmail, Outlook, Hotmail, iCloud and Fastmail mailboxes at once and read, draft, send and organise mail in each. It also supports attachments, labels, filters, signatures and vacation responders, with per-mailbox permissions controlling what may be sent.

Relays a result screenshot to Slack so you can review a coding agent's output without opening the app.

Local-first MCP server for agents that need to work across multiple Gmail and Microsoft 365 accounts without cloud token storage.

Gives MCP clients access to Google Workspace (Gmail, Drive, Calendar, Sheets, Docs, etc.) across multiple Google accounts simultaneously.

Connect multiple Gmail accounts to any MCP client, enabling search, read, draft, send, label, and organize mail across unlimited accounts with local-only OAuth token storage.

A Gmail MCP server with native multi-account support, enabling management of multiple Gmail accounts from a single server instance.

Lets Claude Desktop manage multiple Gmail accounts simultaneously, supporting search, read, send, reply, and label organization via MCP tools.

MCP server exposing multiple Google Workspace Gmail accounts to Claude, with support for verified send-as aliases and opt-in sending.

Enables AI assistants to manage multiple Gmail accounts in a single process through the Model Context Protocol, including cross-account search, reading threads, drafts, sending, labels, and attachments with per-account permission tiers.

Lets Claude Code instances discover each other and exchange messages instantly across projects, with persistent peer IDs and automatic message rotation.

Connects a running Claude Code session to Meta's WhatsApp Agent Platform so you can message your own agent from your phone and receive replies in the same chat, limited to the agent profile's creator.

Enables Claude to search and read emails from multiple Gmail accounts in one session, letting you switch between mailboxes via account labels. It is read-only and survives token expiry without restarting.

Enables multiple Claude Code instances to collaborate in real-time through channels, allowing AI agents to work together on projects without requiring local setup beyond Docker.

An MCP server that provides read, label, and draft access to multiple Gmail accounts from a single server, never sending email.

This server enables users to search, read, compose, and send emails across multiple independently-authenticated Gmail accounts through a single Claude custom connector.

Enables an AI assistant to access and search across multiple Gmail inboxes simultaneously, allowing unified management of work, personal, and other email accounts through a single MCP server.

Enables full-text search of macOS iMessages including link preview metadata. Works as an MCP server for Claude Desktop to search your messages locally.

Enables searching Telegram messages and chats, retrieving recent messages, and extracting text from attached documents (PDF, TXT, MD, CSV) using your personal Telegram account.

Enables comprehensive Google Meet and Calendar management through Google Calendar API v3 and Google Meet API v2, supporting calendar event creation with Meet links, space management, transcription, recording, attendance tracking, and meeting moderation controls.

lark-tools-mcp connects Lark and cursor. It provides cursor with the ability to read documents, send messages, process tasks, and perform data analysis.

A collection of MCP servers for Apple macOS apps (Mail, Contacts, Notes, Memory, Messages, Calendar, Reminders) enabling AI assistants to read, search, create, and update data via JXA, SQLite, and EventKit.

Enables Claude Desktop to interact with multiple Gmail accounts via MCP, providing tools for sending, searching, reading, labeling, filtering, thread management, drafts, and attachments. It also ensures correct thread replies and recoverable deletes.

Enables agents to perform read-only web search and fetching with SSRF/DNS-rebinding protections, probe gateway health, and optionally use QQ messaging tools with outbound redaction and media allow-listing.

A local-first MCP server for managing multiple Gmail accounts with separate OAuth grants, supporting search, retrieval, labels, drafts, and attachments while deferring direct send and destructive actions for safety.

A Model Context Protocol server that enables AI assistants to interact with Microsoft Outlook for calendar management, email operations, and search functionality.