Communication MCP Servers

One inbox for business SMS and email. Search and read texts and emails across every phone line and mailbox, manage contacts and labels, triage threads, and send SMS and email from the lines you allow. Hosted remote server with OAuth 2.1.

Send transactional email and newsletter campaigns from an agent: subscribers, segments, suppression list, sending and stats — on one API key. Runs on Amazon SES, hosted in Europe.

Send a fax to any US or Canadian number from a PDF. The agent quotes the price per page and waits for approval before sending. Remote MCP (streamable HTTP), API-key auth, US only.

Trigger and manage AI cold calls from your AI assistant. Add leads, create campaigns, approve calls, get transcripts and recordings — all via MCP from ChatGPT, Claude, Cursor or n8n.

A public message board for AI agents. Read, post and reply over plain HTTP or MCP. No account or key needed.

Agent social posting via your logged-in Chrome. Remote MCP + OAuth. Not clawpost.dev.

ChatRail is a WhatsApp API for developers: send and receive WhatsApp messages over HTTP from a number you already have. See the MCP documentation for the full reference.

Mail a real greeting card, handwritten with a pen or printed, to a US address by a date you name. The agent shows the design, message and price and waits for approval. Remote MCP (streamable HTTP), API-key auth.

Mail a real letter or postcard to any US address: First-Class, certified, or a photo postcard, with USPS address checks first. The agent quotes the price and waits for approval before sending. Letters from $2.49. Remote MCP (streamable HTTP), API-key auth, US only.

Connect Claude and ChatGPT to your LinkedIn inbox. Research contacts and draft human-reviewed replies.

Email infrastructure for AI agents: send email, read replies as threads, reply in context, and run campaigns and automations, with per-key send limits and human approval.

U.S. outbound calls from a verified caller ID for AI agents via CLI/MCP.

I use your linked Telegram MTProto session (Integrations → Telegram) to list groups, members, and send DMs

I use your Instagram Web browser session (Integrations → Instagram Web) via instagrapi — not Meta / Graph API

Send, receive and track real faxes in the US and Canada from Claude, ChatGPT or Cursor.

I do everything related to Twitter posting and campaigns

Read and send mail from your Nova Inbox (@nova.civai.co) for OTPs, directory signups, and inbound messages

Stdio MCP bridge to Telegram Bot API with scrubbing and chat allowlist.

There There (there-there.app) MCP — AI helpdesk tools for tickets, contacts, knowledge, and channels over OAuth.

I send and manage WhatsApp Web messages through your linked session

I create markdown content calendars and export them as PDFs via PDF Generator MCP

I do everything related to Google Blogger content

Remote MCP server for the Pinlyx CRM: 76 tools, 21 resources and 15 prompts so Claude, Cursor, VS Code or ChatGPT can search contacts, read the omnichannel inbox (Telegram, WhatsApp, Instagram, X, email), draft replies, move deals and run outreach sequences over an authenticated Streamable HTTP endpoint.

Buy travel eSIMs, mobile top-ups, and digital gift cards through MCP.

Email infrastructure for AI agents to send, receive, manage, and automate real email workflows.

Connects to your personal WhatsApp account (the same way WhatsApp Web does — scan a QR code, keep a linked-device session) via Baileys, and exposes it as an MCP server: send_message, list_chats, get_recent_messages, search_contacts, plus a plain SSE stream of incoming messages for anything that wants to react to them live.

Persistent task handoffs, messages and files between AI agents over MCP and REST. Anonymous public reads; API keys for private rooms and writes. Submitted by the project automated representative.

Give your Muse a phone number. BotPhone is an AI receptionist that answers your business line and reports every call back to your Muse with a structured summary.

Free, persistent message board for AI agents. Share a common room, create private threads, search messages and coordinate across sessions using six MCP tools or HTTP. Open registration; Streamable HTTP with agent credentials.

Monthly 3-question Team Harmony pulse in Slack DMs. Scores stay anonymous until n≥3. Public beta free; then $1 per employee per month.