Communication MCP Servers

Send birthday cards, Christmas cards and postcards, printed and mailed for you.

Only MCP for Apple Messages for Business. Send iMessage, SMS & RCS from AI agents.

Check whether phone numbers are registered on WhatsApp from your AI agent. Validate individual numbers, run bulk jobs and check your allowance through NumRadar’s hosted MCP server. Uses the same account and API key as the REST API. Paid plans start at $9 USD/month for 5,000 validations. No WhatsApp account connection required; checks do not send messages.

give your agents email sending to allowlisted emails, with ratelimits, via cloudflare workers

Read, check and write Rowih, a language for AI agents whose moves state force, basis and authority

Official MCP server for Pombus. Permission-scoped email tools over stdio — the agent only sees what the API key allows. Run with npx pombus mcp.

MCP server for the Zavu messaging API: let AI agents send and receive WhatsApp, SMS, voice, email and Telegram messages.

Self-hosted WhatsApp gateway for AI agents and applications over REST and MCP, with per-client, per-chat read and write allowlists, rate budgets, and a hash-chained audit log.

Phone numbers for AI agents: get SMS verification codes on one-time numbers and rent numbers that receive SMS, paid from a wallet.

Telegram bots for AI agents. Send, moderate and search a local SQLite mirror of your bot's chats. MCP server, CLI and Agent Skill. Zero dependencies.

AI Agent social network + MCP tool gateway — A2A messaging, posts, circles, and 2000+ real-world tools via Streamable HTTP + OAuth 2.1.

Forum and social network where AI agents and people post, answer, send DMs and hire each other. Agents sign up with one API call, no human needed; paid tasks via PayPal are optional.

Send real faxes worldwide from Claude, ChatGPT & Cursor. Prepaid, no subscription, PDF report.

Fax API, hosted MCP server and SDKs built so AI agents can send and receive faxes.

IMAP and SMTP for AI agents. Read, search, thread, send and organize mail through a local SQLite cache. MCP server, CLI and Agent Skill. Zero dependencies.

Connect WhatsApp to any AI agent, n8n, Zapier or your own backend. QR scan setup, signed webhooks, hosted MCP server. $4 per number per month.

AI agent email inboxes, messages, threads, send, and reply. Hosted endpoint https://api.goshenemail.com/mcp requires an account key via Authorization: Bearer; available tools depend on key scopes.

Open chat room for AI agents. Any bot can register with one POST, then chat, send end-to-end encrypted DMs, use a task board, and connect P2P. Free REST API and Streamable HTTP MCP server, no auth needed.

Mail between coding-agent sessions on one machine or across machines. Each repository gets named agents, a threaded inbox with full-text search and advisory file reservations. One Bun binary with SQLite; works with Claude Code, Codex, Cursor, Grok, Antigravity, Devin and OpenCode.

Give your AI assistant a real phone account: check call rates to 160+ countries, balance, contacts and call history, read AI call summaries and texts on your numbers, and place calls (ring you first, or let a VoixCall AI voice agent talk). OAuth 2.1 or API key.

Email inboxes for AI agents: their own addresses, threads, sending, replies and arriving mail.

Turn a photo into a real printed postcard. Get an unpaid draft link to review, finish, and pay on the website.

Local Telegram MCP for Codex on macOS and Windows, Gemini CLI on macOS, and ChatGPT Work on Windows: search chats, read history and threads, download attachments, transcribe voice notes, and optionally prepare, send, or edit messages with user approval.

Official remote MCP server for HalloFelix, the AI phone and WhatsApp assistant for insurance brokers (DACH). Read calls with transcripts and summaries, manage customers and outbound call campaigns, tune the voice and WhatsApp assistants, and work the WhatsApp inbox (chats, messages, notes, labels, templates). Endpoint: https://app.hallofelix.de/api/mcp (OAuth or API token).

Read, search, draft, and send email from a mailbox on your own domain.

Hire a vetted human AI expert, live, from inside your agent. LIVEAIHELP connects AI agents (and people) with human experts over video/chat who can drive the user's screen (with permission) to finish tasks an agent can't — configuring tools, fixing files, unblocking workflows. $1/minute billed to account balance; new accounts get 5 free minutes. Tools: hire_human_expert, send_message, read_messages, check_queue, end_session, check_balance.

Your Olatti UK business phone system in Claude and ChatGPT: find calls, read summaries and transcripts, look up contacts, message colleagues, call out.

A local MCP server that lets AI agents send desktop notifications and optional webhooks during long-running tasks, for questions, and when attention is needed. Supports macOS, Linux, and Windows.

Official hosted Emailit MCP server: send transactional email, run campaigns and automations, manage contacts and sending domains, and fix deliverability. OAuth sign-in, no API key needed.

Lasting public addresses and threaded messages between AI agents, across apps and machines.