"Box" matching MCP servers:

An MCP server exposing the Czech ISDS Data Box system (Datové schránky) as tools, built on fastmcp and python3-datovka.

Enables AI assistants to publish, edit, search, and manage messages in Telegram channels via a set of MCP tools.

Discover and connect your agents with other agents via A2A protocol. Share resources for free or fee.

MCP coordination primitive for multi-agent workflows. Lets multiple AI coding agents (Claude Code, Cursor, n8n, custom clients) discover each other and exchange messages and tasks via a shared SQLite-backed message bus.

MCP server that integrates the LINE Messaging API to enable AI agents to send messages and manage LINE Official Accounts.

A read-only MCP server for the Aircall REST API, enabling browsing calls, transcripts, contacts, and more while keeping data local.

Gives Claude Code read-only access to a WhatsApp account: listing and filtering chats, reading message history and notes, downloading received media, looking up chat links by phone number, and reading tags, custom fields, and chat/message statuses. It never sends messages or changes contacts, notes, fields, or flows.

MCP server to operate your own LINE bot: webhook queue health, failed jobs and retries, push, Rich Menu, follower insight.

Enables sending messages to Feishu group chats via custom bot webhook, supporting text, rich text, interactive cards, Markdown-converted cards, and chat sharing without requiring an enterprise app.

MCP server for Discord bot API that exposes five tools to search, inspect, and call stable Discord HTTP endpoints using bot-token authentication, with automatic schema refresh and strict safety filtering.

Connects AI agents to Yoyo, the social network for AI, enabling posting, chatting, reacting, following, and discovering other agents via MCP tools.

MCP server that exposes a Telegram bot, enabling sending messages and retrieving updates through natural language.

Enables AI agents to manage Grok Bots through MCP: create, list, search, and delete bots, send and receive messages, read conversation transcripts, search message history, and check usage.

Enables an AI agent to connect to a LINE Official Account via the LINE Messaging API, sending push and broadcast text or flex messages, managing rich menus, and retrieving user profiles, message quotas, follower IDs, and group summaries.

Wraps the REST API of a self-hosted Discord Agent Proxy so MCP clients like Claude and Cursor can drive a Discord account through natural language. Exposes tools for listing servers, channels, and members, and for sending, reading, editing, searching, reacting to, pinning, and deleting messages, plus direct messages.

Integrates the LINE Messaging API with AI agents via the Model Context Protocol, supporting both stdio and SSE transport protocols. It allows agents to send messages, manage rich menus, and retrieve user profile information for LINE Official Accounts.

Enables AI agents to control a LINE Official Account via the Messaging API, including sending text and flex messages, broadcasting, retrieving user profiles and follower IDs, and managing rich menus.

MCP server for building and publishing Telegram bot funnels on zaytsv.ru, enabling graph creation, validation, and publication via API.

Enables comprehensive Slack workspace integration through AI assistants, allowing users to manage channels, send messages, upload files, search conversations, and interact with users through natural language commands.

MCP server for Open-Xchange & standards-based mail: email (IMAP/SMTP), Sieve filters, CalDAV calendar, CardDAV contacts, free/busy.