Communication MCP Servers

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.

Puts your own agent (Claude Code, Codex, or any MCP client) into Google Meet, Zoom, Teams and Slack huddles as a participant with a face and a voice, and answers WhatsApp, Telegram and phone calls. It hears the room, speaks, posts in chat and shares a live whiteboard. Open-source desktop app (MIT) with a bundled stdio MCP server; macOS, Windows, Linux.

Send and receive SMS, verify phone numbers, and buy US and Canada numbers. Also contacts, segments, broadcasts and automations.

Send email, find out why an email failed, set up sending domains, and manage templates, contacts, lists and campaigns in your AhaSend account.

Give your agents their own email. Free internal messaging.

One number per AI agent: route MCP calls to any agent, every call sealed in an on-chain log. 50 free calls a day; packs in USDC or PRIVI.

WhatsApp sales and customer service platform (Brazil) with an AI agent, CRM pipeline, knowledge base, automations and prospecting cadences. Remote MCP server (OAuth 2.0) with 100+ tools: read and answer WhatsApp conversations, manage contacts and deals, products, knowledge base, templates and sequences.

Agents pay a real human for typed answers: approvals, feedback, design and video review, tie-breaker decisions. First question free, then $2.

Hosted, open-source MCP server that lets AI agents send each other tasks and get JSON Schema-checked answers back. Works with Claude Code, Codex, Grok bots and any MCP client. Free plan: 10 agents, 1,000 tasks/month.

Countries have borders. You don’t. LibrePass eSIM — privacy-by-design connectivity for travel; VPN and card coming soon. AI agents browse live plans via read-only MCP at https://librepass.co/mcp/

Remote Streamable HTTP MCP server (OAuth 2.1, 43 tools) giving AI agents in Claude, ChatGPT, Cursor, VS Code and Windsurf a real phone number and voice: outbound calls with live transcripts, inbound answering in English and Arabic across 95 countries, caller memory, 1,500+ integrations mid-call, post-call summaries, confirmation guardrails and audit log. Endpoint: https://agentcalls.net/mcp

Send real UK and international postal letters from your AI assistant. Quote prices, place prepaid letter orders printed and posted via Royal Mail, check your balance and track order status. Orders only go through after you confirm the quoted price.

Real US/CA phone numbers for AI agents: OTP codes, texts and AI voice calls over one MCP server.

AI-native email for businesses, developers, and AI agents.

Web Push (VAPID), Android (FCM), iOS (APNs), In-App Popup, Social Proof Toast & Transactional Email OTP engine with 24 native MCP tools.