Communication MCP Servers

Email inbox for AI agents, owned by a Nostr key: no signup or password. Receive verification codes, read and reply to mail via the local npubmail-mcp server. Beta.

Transactional email API for AI agents: send from your verified domain, check delivery and validate addresses over a remote MCP server (OAuth). Humans approve and can revoke access.

Communication infrastructure for businesses, creators and their AI agents.

Hosted MCP server that lets AI agents send real USPS letters and certified mail. Check the address, preview a PDF proof with the exact price, then mail it. Priced at cost, US addresses only. Sign in with OAuth, nothing to install.

Self-hosted mail for agents: scoped search, read and drafts across Gmail and IMAP mailboxes

Print and post real paper letters to any country from your AI assistant: upload a PDF or compose one from text, with optional registered mail. Quotes, destinations and PDF checks work without an account.

Send, receive, edit and react to WhatsApp messages from your AI agent, on your own number. OAuth or API key sign-in.

A remote MCP gateway for persistent agent identities, authenticated private messages, inbox acknowledgements and a shared 24-hour public message board.

Open network where AI agents find each other, message, delegate tasks and earn credits for work.

AI receptionist for small businesses. Read calls, messages and contacts, book and change appointments, and update opening hours and FAQs.

Hank is an AI receptionist that answers the phones for restoration and home-service companies. Its MCP server lets you manage your Hank account from Claude, ChatGPT or any MCP client in plain language: see who is on call, set up on-call rotations and shift swaps, change where each kind of call is routed in and after business hours, and update office hours, holiday closures, service-area ZIP codes and lead policy. Remote server over streamable HTTP with OAuth 2.1 sign-in; changes are confirmed before they take effect.

Hosted WhatsApp and Telegram MCP connector for AI agents. Pair by QR (unofficial linked device; ban risk); OAuth or access key, contact list, send limits.

Connect VoIP.ms to Claude, ChatGPT, Cursor and other AI apps: numbers, SMS/MMS, voicemail, call flows and billing, with per-scope access you control. Not affiliated with VoIP.ms.

Email infrastructure for apps and AI agents: send and receive email by API, SMTP or MCP.

Einwilligungen und Elternbriefe für die Schule mit dem Chatbot entwerfen und DSGVO-konform über Schlaue Schule versenden – ohne personenbezogene Daten im Chat. Server in Deutschland, kein Konto nötig.

Remote MCP server to read, summarize and send your own WhatsApp messages from Claude, ChatGPT, Copilot and other AI assistants. OAuth 2.1, free plan.

Run Andy, the AI agent that answers customers on WhatsApp and Instagram: read chats, approve posts, update your agents.

Remote MCP service for AI agents to discover peers, maintain friendships, read public posts and explore business inquiries using their own model. Bootstrap a site visitor identity through the documented HTTPS flow, then connect with its saved Bearer token.

Inspect one inbound email and get structured findings: kind, verdict, scam and spam scores, named checks. Prepaid, $0.0025/check.

Talk to a real person, live on video. See who is streaming on SovaTalk right now (optionally by topic: second opinion, breakup, can't sleep), get prices and how it works, and ask SovaTalk's assistant about the site. Free to watch and chat; private 1-on-1 calls per minute. Read-only, no sign-in. 18+, peer support, not therapy.

One MCP server for every inbox and calendar: Microsoft 365, Outlook, Gmail, iCloud, Yahoo, Zoho, Fastmail, IMAP/CalDAV. Every send waits for your approval by default.

HumanCalls puts a real person on the phone for you or your AI agent. They call the business, ask your questions and send back typed answers with the recording. Remote MCP server: https://humancalls.ai/mcp (Streamable HTTP, OAuth 2.1).

Self-hostable, AGPL, Resend-compatible email API. MCP server sends and manages email: compose/send, templates, contacts, domains.

Build, test and run voice and text agents for Australian contact centres.

Read Outlook .msg, .eml and winmail.dat files on your machine, including bodies stored only as compressed RTF. Tools: read_email, save_attachments, convert_email. Local stdio server, no network requests. Install: npx -y msglens-cli mcp

讓 AI 代理透過純 Telegram Bot API 取得完整 Telegram Bot 控制能力：豐富鍵盤、本機檔案與媒體相簿、互動元件（投票、測驗、定位、骰子），零登入風險，僅需一個 Bot Token。

AgentiSend is a transactional email API and Resend alternative for applications and AI agents: Resend-compatible requests over REST, a hosted MCP server, a send budget on every API key, a kill switch, and a Free plan of 5,000 emails a month with no card.

Give every product you run its own support@ address and answer them all from one inbox. Replies go out from the right brand. No Google Workspace needed.

Write, send and follow your Tinysend newsletters, and sign up for things with your Tinysend address.

Convert .eml and .mbox email to clean Markdown for RAG, LLM pipelines, and local knowledge bases