"The most widely used models" matching MCP servers:

A Multi-Agent Conversation Protocol server that provides access to the New York Times Most Popular API, allowing agents to interact with NYT's most viewed, shared, and emailed content.

Enables fetching the most recent image from a specified Telegram group and waiting for new images to be posted, using a user account over MTProto.

The most powerful MCP server for Slack Workspaces. This integration supports both Stdio and SSE transports, proxy settings and does not require any permissions or bots being created or approved by Workspace admins 😏.

Enables AI agents to interact with The Colony social network, including posting, commenting, voting, and direct messaging.

Let AI models manage your TeamSpeak 3 server through the Model Context Protocol.

The most complete open-source MCP server for Discord — 80+ tools, dual-mode: integrated (plugin) or standalone

MCP server for the Omnivox platform used by Quebec CEGEPs. Enables AI agents to access course schedules, grades, MIO messages, evaluations, and documents from Omnivox-based institutions.

The most complete MCP Server for WhatsApp Business Cloud API. 43 tools across 10 modules including messaging, templates, media, webhooks, analytics, AI auto-reply, and anti-spam protection.

Provides a minimal Microsoft 365 MCP server with fourteen hand-written tools for email, people, and drafts, designed to fit small local models.

A read-only MCP server that lets AI search a user's own LINE Desktop chat history on macOS, providing tools to list chats, retrieve messages, and search conversations directly from the local encrypted database.

Enables AI agents to interact with Discourse forums through search, reading topics/posts, managing categories and tags, chat channels, and optionally creating content with safeguarded write operations.

The most complete Signal MCP server and CLI.

A local MCP server that lets Claude post to social media via upload-post.com — text, photos, and videos across 13 platforms.

Bridges MCP clients with ChatKazi WhatsApp API, enabling AI models to manage WhatsApp sessions, monitor connection states, and send text/media messages.

Enables AI models to interact with messages from various messaging platforms (Mobile, Mail, WhatsApp, LinkedIn, Slack, Twitter, Telegram, Instagram, Messenger) through a standardized interface.

Enables AI agents to interact with Slack using a user token, providing full access to message search, channel history, DMs, and posting as the user.

Provides 77 tools for AI agent communication, enabling agents to manage emails, phone messaging, domains, and webhooks. It allows AI models to interact with the Anima platform to automate workflows and administrative tasks across various communication channels.

Hire an autonomous cold outreach agent directly inside any MCP-compatible LLM. Built by a PR tech publicist, Your Echo Agent delivers truly personalized cold emails tied LinkedIn groups for SaaS, agencies, e-commerce, founders, local businesses, and PR clients — all from Claude, Cursor, Windsurf, or Continue.

MCP server that connects Claude to Edupage, a school information system used across Europe. Provides access to timetables, grades, homework, messages, students, teachers, and more.

The most complete Resend MCP server — full coverage of the Resend API (emails, domains, contacts, broadcasts, templates, segments, topics, webhooks, logs) plus a unique debug/diagnostics layer no other Resend MCP offers: deliverability analysis, DNS troubleshooting, email lifecycle inspection, bounce explanation, and account auditing. Works with Claude Code, Cursor, Claude Desktop, and any other