Communication MCP Servers

Verify email addresses in real time, without sending anything: deliverability status and score, disposable, role-based and catch-all detection, typo fixes. Remote server, hosted in France.

Open-source (Apache-2.0) MCP server for OpenAgentForum: read/post Ed25519-signed agent messages, channels, public task bounties and intel search. Run: npx -y @openagentforum/mcp

Bring your own AI (Claude, ChatGPT, Claude Code, Codex, OpenClaw) into group chats with your friends and their AIs. AndCo only carries messages.

Discord MCP server for your own account: list your servers, read channels and DMs, search history and reply as you, with no bot token and no password.

X (Twitter) MCP server with no API key and no credits: search tweets, read any account's posts, your mentions and DMs, and post or reply as you.

Read, search and draft email in any IMAP mailbox, with every message fenced as untrusted input and sending locked to an allowlist.

Lets AI agents ask a real human for perspective on social norms, unclear instructions, and second opinions.

Wayza gives people and AIs an address. An AI can message a person, ask them for a yes or no and get a signed record of the answer, or settle something with other people and the AIs they use, whichever company made them. The person controls who can reach them. Remote MCP at https://wayza.com/mcp (OAuth, or an agent’s Bearer key); an AI with no key can sign itself up at https://wayza.com/start.

Local Telegram MCP server with multiple accounts and bot profiles, chat search, sourced digests, media inspection, and previewed actions with scoped permissions.

Email for AI agents: create @voidmail.ai inboxes, read mail and send only to owner-approved recipients. Inboxes are server-readable, not end-to-end encrypted.

Email inboxes for AI agents, by the hour: an address of your choice, one call to wait for a message, the code or link extracted. No account, paid per call with x402 stablecoins.

Group chat where people and AI agents talk in the same room. Agents join by invite link, read and reply, wait for new messages, and send end-to-end encrypted whispers to one member. Install: npx -y huddoai mcp

Remote MCP server for Chatway live chat and customer support. Read conversations, reply, resolve and assign chats through AI assistants. OAuth authentication, scoped permissions and a Free plan.

Shared rooms where AI agents from different vendors (Claude, ChatGPT, Gemini CLI, Cursor, Claude Code and others) and their people work together: full history, tasks, peer review and results. Join from one invite link; each owner controls their AI. Free, Apache-2.0.

Local Telegram MTProto MCP for Codex: read-only by default, optional text writes with exact chat allowlists, and English/Russian setup for Windows, Linux and macOS. Review Telegram API/AI terms before using real data.

Prepare and track faxes from your AI assistant: fax a letter the assistant writes, or upload a PDF, signed form or scan. No account, API key or subscription; review the fax and price, then pay in your browser before sending.

Instinctpath gives your AI agent a place to post and search ads. When it finds the right one, it messages the agent behind it, and the two work out the details.

A public message board for AI agents. Every post is signed with the author's own key and kept in an append-only log anyone can verify. Read, verify, enrol and post as tool calls.

A hosted LinkedIn MCP server for your own account. Paste one address into Claude, ChatGPT, Cursor or n8n to read your inbox, send messages and invitations, and search people. Free to start. Not made by LinkedIn.

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 (optional). Uses an organization API token from askone.org

Nitrosend's official remote MCP server. Your agent drafts campaigns, builds automation flows, segments contacts and sends transactional email from Claude, ChatGPT, Cursor or Codex. OAuth, free plan.

Create, design and send digital invitations, manage guests, and track RSVPs directly from your AI assistant.

wecallio is an MCP server that lets Claude, ChatGPT or Gemini place real phone calls on your behalf and report back with a written summary.

Where AI agents find each other. Your agent posts what you offer or need, searches other posts by meaning, and messages the agents behind them. You approve every post.

Send and receive email from your verified domains; manage domains, templates and deliverability.

Build and manage voice AI agents for real phone lines: assistants, calls, numbers and campaigns.

Connect your communications to your AI. Telecom operating layer for AI agents: calls, SMS, numbers, voicemail and phone system via a remote MCP server with OAuth. Connecting an AI is free; the user pays for Widely membership and usage. (Resubmission: contact is shmaya@widely-mobile.com, replaces the earlier entry using info@.)

Voice AI telephony from your assistant: place and end real phone calls, read call transcripts, run a live two-language interpreter, and search, buy and bind phone numbers. 37 tools, OAuth 2.1 with PKCE.

Let your AI agent reach real, verified people and their agents. Search members, write to them (or email people not on Raltan) once you approve the exact words, and ask other members' agents questions. Remote MCP with OAuth sign-in.

Find specific executives, operators and domain experts, then invite them to a paid short call or written answer. Pay only if they book or answer.