"How to obtain an API key" matching MCP servers:

Run free live audience Q&A and polls from your agent: start an AskOne room, add and launch a poll, approve or hide questions and mark them answered, close the room, then read the questions as a FAQ draft and get the results. Free AI moderation. Uses an organization API token from askone.org

Enables agents to convert Markdown into WhatsApp-compatible formatting, including styled text, lists, and tables that fit a phone's monospace width.

Enables LLM agents to operate WhatsApp through the Evolution API, providing tools to list groups, fetch message history, and send text messages to groups or individual phone numbers.

The LinkedIn API and MCP server for AI agents: search, connect, message and enrich on accounts you own, with limits enforced on our server. 20,000+ LinkedIn accounts run on this stack, and under 1% of them have ever been restricted.

Enables encrypted messaging via Signal, SimpleX, and Session through a unified API, supporting message sending, polling, and key management.

Enables AI agents to participate in meetings by pulling pending requests, reading context, and submitting answers through a Supabase-based MCP server.

Minimal MCP server for sending messages to Poke via the inbound webhook.

Read chats, search messages and check members on your own Telegram account over MTProto. Any change is a typed plan a person applies from the terminal; no tool sends by itself.

Lets separate coding-agent sessions coordinate through a shared, role-addressed mailbox instead of a human relaying every message, over a single local SQLite file or a hosted server with many isolated channels. Messages can be sent as tracked obligations that stay open until one side resolves and the other confirms, alongside threads, full-text search, work statuses, and an append-only versioned pin system where protected changes require recorded agreement from every declared role.

An MCP server that lets you schedule AI phone calls and manage Leximo assignments directly from Claude Desktop or Claude Code.

MCP server for AI agents to send notifications, copy to clipboard, request confirmations, and collect text input from users across their devices.

Enables AI assistants to query the Voxie AI Phone Number Directory, list AI services, and obtain webchat URLs to interact with Voxie AI personas.

Enables MCP clients to interact with the X (Twitter) API v2 through 41 typed tools for reading, searching, engaging, publishing, and managing content, with policy-based access control and session credit budgets to prevent overspending.

A multi-user AI group chat server via MCP that lets multiple users' AI agents join a shared discussion room to debate topics and reach convergence.

Connects AI tools to Fathom meeting transcripts, summaries, and action items via a single API key.

Send WhatsApp messages from any MCP client — text, images and files, plus session management and contact checks. Authenticate by scanning a QR code: no Meta Business approval and no WhatsApp Business account required.

A free MCP server for growing Discord communities, offering tools to search public servers, analyze engagement, and draft messages, with optional premium AI features powered by DeepSeek.

Generate professional AI-powered presentations from a topic, raw text, or document file. Export to PPTX, PDF, image, or shareable link.

Enables AI agents to access and interact with a Twist workspace, managing threads, conversations, inbox, and more through natural language.

Enables AI assistants to coordinate with teammates and agents via Clink, supporting group management, clinks, milestones, projects, and voting.

Enables multiple AI agents and humans working in the same project to share status, exchange messages, and claim files through a local collaboration board. It supports project-specific enablement, conflict-aware file claims, and shared state via SQLite.

Enables automatic collection and AI analysis of Slack messages to create organized Notion pages, supporting custom analysis directions like meeting minutes, issue extraction, and topic classification.

An MCP server for the Fathom AI meeting intelligence API

Enables AI agents to access and interact with a Twist workspace, including inbox, threads, conversations, search, replies, reactions, and completion actions.

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.

MCP server for Gmail that provides tools to download attachments, fetch raw messages, manage filters, and create drafts, while deliberately omitting send functionality for safety.

MCP server that wraps the Evolution API (WhatsApp) as semantic tools for LLM agents, enabling messaging, chat management, group operations, and instance control via natural language.

Enables multi-account posting, replying, threading, deletes and image/GIF/video uploads through the official X API v2, plus likes, reposts, bookmarks, follows, timelines, search, DMs, Lists and trends. It runs locally over stdio so OAuth tokens and refresh stay on the user's own machine.

An MCP server that integrates with Hunter.io API to find and verify email addresses using domain and name information.

Send transactional email and manage sending domains, templates, webhooks and suppressions with Groundmail. Runs locally over stdio or HTTP with an API key; a hosted OAuth server is also available.

Enables Claude to manage WhatsApp templates, flows, and send messages through the WhatsApp Cloud API.

An MCP server that enables AI assistants to interact with Twitter/X through a single authenticated session without an official API key, providing 27 tools for reading and writing tweets, user management, timeline access, trends, and direct messages.

Enables users to validate the existence of email addresses through a simple FastMCP tool, offering JSON responses without requiring an API key.

An MCP server that provides comprehensive access to the Slack Web API, enabling AI agents to search messages, manage channels, and create canvases. It features 13 core tools and over 300 dynamic methods for complete automation of Slack workspace operations.

Exposes 105 MCP tools that let Claude and ChatGPT read and analyse a Mizito workspace's chats, projects, tasks, calendar, letters, minutes, surveys, notes and files (including PDF, Word, Excel and image content). Write, CRM and admin tools can optionally be enabled so the assistant can also send messages and letters, create and repeat tasks, manage kanban boards, and handle customer records.

Enables WhatsApp Business messaging through Evolution API with support for creating instances, sending messages using dynamic templates, and managing contacts and groups. Includes 10+ predefined message templates for common business scenarios like order confirmations, appointment reminders, and promotional messages.

Exposes the Evolution API v2 (WhatsApp) as 121 tools for MCP clients, enabling management of instances, messages, chats, groups, profiles, labels, webhooks, and integrations.

Sendmux is an email inbox API and email API for AI agents. Use this MCP server to let authorised agents work with Sendmux mailboxes, inbound email, clean JSON parsing, webhooks, outbound sending, provider routing, logs, billing, and team controls.

An MCP server for interacting with Twitter/X using browser cookies without an API key, enabling tweet management, user actions, and search via natural language.

Enables LLM agents to query and manage hh.ru data through all 135 public API operations exposed as grouped, switchable toolsets, with stdio and HTTP/Docker deployment plus token- or OAuth-based authorization.