Communication

Resend MCP Server

Official Resend MCP server enabling AI agents to send transactional emails via Resend's developer-first email API — composing and sending emails with HTML/text content, managing contacts, and handling email delivery.

Twilio MCP Server (Official)

Official Twilio MCP server enabling AI agents to send SMS, make calls, send WhatsApp messages, and access Twilio's full communication APIs — programmable voice, messaging, email via SendGrid, and video.

Mailgun MCP Server (Official)

Official Mailgun MCP server enabling AI agents to send transactional emails, manage mailing lists, query email logs, validate email addresses, and access Mailgun's deliverability analytics.

@modelcontextprotocol/server-slack

Anthropic's official reference MCP server for Slack. Gives agents the ability to read and send messages in Slack channels, list users, and interact with the Slack workspace.

Vonage MCP Server (Official)

Official Vonage MCP server providing access to Vonage's developer documentation — enabling AI agents to query API references, integration guides, and code examples for building SMS, voice, video, and messaging applications with the Vonage Communications API.

Sendbird MCP Server

MCP server wrapping Sendbird's messaging platform REST API, providing agent-native tools for managing users, channels, and message history — enabling agents to query chat logs, moderate content, and manage in-app messaging channels without constructing raw API calls.

Resend API

Modern developer-first transactional email API with React Email support, clean SDK design, and a focus on simplicity and deliverability.

Slack MCP Server

A feature-rich MCP server for Slack that enables AI agents to read messages, DMs, group DMs, search channels, manage user groups, and post messages with smart history pagination, supporting both stealth (no-bot) and OAuth modes.

Postmark API

High-deliverability transactional email API focused on fast inbox delivery for password resets, receipts, and critical notifications.

Telegram MCP Server

MCP server for Telegram messaging platform. Enables AI agents to send messages, manage Telegram bots, read channel/group messages, and interact with Telegram's Bot API. Supports message sending, media attachments, and bot command handling through Telegram's official Bot API.

Pusher MCP Server

Community MCP server for Pusher Channels enabling AI agents to publish real-time events to channels, trigger webhooks, and manage pub/sub messaging in real-time application architectures.

Mattermost

Open-source, self-hosted team collaboration platform with a well-documented REST API for messaging, channel management, bot integration, and slash commands — designed as an enterprise Slack alternative.

Twilio SendGrid Email API

Twilio's cloud-based transactional and marketing email delivery API, used by agents and applications to send reliable, tracked emails at scale with dynamic templates and suppression management.

WeCom (企业微信) Bot MCP Server

WeCom (企业微信/WeChat Work) Bot MCP server enabling AI agents to send messages to WeCom enterprise messaging platform — posting text, markdown, images, and card messages to WeCom groups and channels, and integrating China's leading enterprise communication platform into agent-driven business notification and workflow automation.

AgentMail MCP Server

Official MCP server from AgentMail (agentmail-to org) for AgentMail — an email inbox API purpose-built for AI agents. Gives agents their own email inboxes to send, receive, and manage email programmatically. Designed specifically for agent-to-agent and agent-to-human email workflows, not a wrapper around personal email accounts.

Microsoft Teams API

Microsoft Teams collaboration API via Microsoft Graph, enabling agents to send messages, manage teams and channels, schedule meetings, read chat history, and integrate with the Office 365 ecosystem.

LINE Bot MCP Server

MCP server that connects AI agents to LINE's Messaging API through a LINE Official Account, enabling push/broadcast messages, rich menu management, user profile retrieval, and message quota monitoring via 11 tools.

Telegram MCP Server (chaindead)

Community MCP server for Telegram enabling AI agents to send messages, create polls, manage bot interactions, and access Telegram Bot API functionality for messaging automation.

Discord API

Discord's REST and WebSocket API for building bots, managing servers, sending messages, and integrating with Discord communities via slash commands and interactions.

Customer.io API

Behavioral messaging platform for sending automated email, SMS, push notifications, and in-app messages triggered by user events, with a Track API for event ingestion and Transactional API for on-demand sends.

WeCom Bot MCP Server

MCP server for WeCom (WeChat Work / Weixin Enterprise) bot messaging. Enables AI agents to send messages, notifications, and alerts to WeCom group chats via WeCom's Bot Webhook API. Primarily used for automated notifications in Chinese enterprise environments using WeCom as their internal messaging platform.

Klaviyo API

Ecommerce-focused email and SMS marketing platform with deep Shopify/BigCommerce integration, behavioral segmentation, and APIs for event tracking, profile management, and campaign automation.

Help Scout MCP Server

MCP server for Help Scout — a customer-focused support platform with shared inbox, help center, and live chat. Enables AI agents to read conversations, manage customer tickets, search the knowledge base, retrieve customer profiles, and assist with support workflow automation — supporting AI-driven customer service operations.

Telegram Bot API

Telegram's REST API for building bots that can send and receive messages, handle inline queries, manage groups, send files and media, and interact with Telegram users and channels. Free and widely used for agent notification delivery and conversational interfaces.

Zulip MCP Server

MCP server for Zulip — the open-source team messaging platform with threaded conversations. Enables AI agents to send messages to Zulip streams and topics, read conversations, search message history, and manage Zulip workspace interactions — supporting AI-driven team communication workflows.

Mailgun API

Developer-focused email sending API with powerful routing, parsing, and validation features for transactional email delivery.

Twilio Video API

Programmable video conferencing API built on WebRTC, enabling multi-party video rooms, screen sharing, recording, and real-time composition. Part of the Twilio platform.

Matrix Protocol MCP Server

Matrix protocol MCP server enabling AI agents to interact with Matrix-based decentralized messaging — sending and reading messages in Matrix rooms, managing room membership, and integrating Matrix's open federated chat protocol into agent-driven communication and community management workflows.

Asterisk MCP Server

MCP server for Asterisk — the open-source VoIP PBX and telephony platform. Enables AI agents to manage Asterisk phone systems through the AMI (Asterisk Manager Interface): originate calls, control call routing, query channel status, manage voicemail, and interact with the PBX programmatically.

Discord Node MCP Server

MCP server for Discord enabling AI agents to interact with Discord servers — sending messages, reading channel history, managing members and roles, creating channels, and responding to events. Built on discord.js (Node.js), supporting full Discord bot capabilities through the MCP protocol.

AgenticMail MCP Server

AgenticMail MCP server providing AI agents with email capabilities — reading, searching, and sending emails via IMAP/SMTP, managing mailbox folders, handling email drafts, and integrating email communication into agent-driven workflow automation and personal assistant applications.

MCP Server Email

MCP email server enabling AI agents to send and receive emails via SMTP/IMAP — composing and sending emails, reading inbox messages, searching email history, managing folders, and integrating email communication into agent-driven notification, outreach, and communication workflow automation.

iMessage MCP Server

MCP server for Apple iMessage — enabling AI agents to read iMessage conversations, retrieve message history, and send messages through the macOS Messages app. Enables AI-assisted communication workflows on Apple devices — reading conversation context, drafting replies, and automating message-based workflows.

MCP Email Server

Email MCP server enabling AI agents to send and manage emails via SMTP/IMAP — composing and sending emails, reading inbox messages, searching email content, managing folders, and integrating standard email protocols into agent-driven communication and automation workflows without provider-specific API dependencies.

Freshdesk API

Freshdesk is a customer support and helpdesk platform. Its REST API enables agents to create and manage support tickets, add notes and replies, manage contacts and companies, update ticket properties, and automate support workflows with webhooks.

Discord MCP Server (SaseQ)

Community MCP server for Discord enabling AI agents to send messages, read channels, manage servers, and interact with Discord bots — connecting agents to Discord communities.

Lob API

Lob API — programmatic direct mail and address verification — send postcards, letters, and checks via physical mail, and validate US/international addresses from agent workflows.

Matrix Protocol

Open, federated communication protocol with a REST API (Client-Server API) for sending and receiving messages, building bots, and integrating with the decentralized Matrix network including Element messenger.

Slackdump

Exports and archives Slack messages, threads, files, and user data locally without requiring admin privileges. Includes an MCP server for AI agent integration with archived data.

WhatsApp MCP Server

MCP server for WhatsApp messaging — enabling AI agents to send and receive WhatsApp messages, manage contacts, read chat history, and interact with WhatsApp conversations. Supports automation of WhatsApp-based communication workflows for customer engagement, notifications, and conversational AI.

Twilio Voice API

Twilio Voice API enables programmatic inbound and outbound phone calls, interactive voice response (IVR) systems, call recording, transcription, and real-time call control via REST API and TwiML (XML instructions). Used to build anything from notification dialers to full contact center infrastructure.

SendGrid Email API (Twilio SendGrid)

SendGrid Email API provides high-deliverability transactional and marketing email at scale via REST API or SMTP relay. Offers dynamic templates, event webhooks, delivery analytics, and email validation. Part of the Twilio portfolio.

Stream Chat API

Stream Chat provides a scalable in-app chat infrastructure API with REST for management and WebSocket for real-time message delivery, supporting channels, threads, reactions, user presence, and moderation — with SDKs for most platforms.

Nodemailer

Email sending library for Node.js using SMTP, SES, or other transports. Nodemailer handles email composition (HTML/text, attachments, inline images, calendar events) and transport (SMTP, AWS SES, Sendmail). The standard Node.js library for email — used before transactional email APIs existed and still relevant for custom SMTP configurations, self-hosted mail, or when avoiding external email APIs.

Loops

Email marketing platform designed specifically for SaaS companies, combining transactional and marketing emails in a single tool with a clean REST API for contact management and event-triggered campaigns.

LiveKit Real-Time Audio/Video API

Open-source WebRTC platform with a dedicated AI Agents framework for building voice and video AI agents, integrating with LLMs, STT, and TTS providers including the OpenAI Realtime API.

Mailtrap API

Email testing and production delivery API that provides a safe sandbox environment for testing email workflows and a production SMTP/API path for transactional sending.

Novu Notification Infrastructure

Open-source notification infrastructure API that orchestrates multi-channel notifications (email, SMS, push, in-app, chat) through a single unified API with workflow templates.

Infobip API

Infobip global omnichannel communication platform API — send SMS, WhatsApp, email, voice, and OTP messages across 190+ countries from a single API.

Front API

Front's REST API for managing shared team inboxes, conversations, contacts, and messages across email, SMS, and social channels for customer-facing teams.

Gmail API

Gmail API provides programmatic access to Gmail mailboxes — reading, sending, labeling, searching, and organizing messages and threads for both personal Google accounts and Google Workspace.

Daily.co Video API

Programmable video and voice calling API built on WebRTC. Provides REST APIs to create and manage rooms, prebuilt embeddable UI components, client SDKs for custom UI, server-side recording and transcription, and deep integration with real-time AI voice agents via the Pipecat framework.

Sendbird API

Provides a managed in-app chat and messaging platform via SDKs and a REST API, enabling agents to send messages, manage channels and users, retrieve chat history, and moderate conversations within product applications.

Centrifugo API

An open-source, self-hosted real-time messaging server that provides publish/subscribe channels over WebSocket, SSE, and HTTP streaming, with an HTTP and gRPC server API for publishing messages and managing channels from backend agents.

PubNub API

PubNub provides a globally distributed publish/subscribe API for real-time data streaming, presence detection, message persistence, and push notification delivery across web, mobile, and IoT devices — accessible via REST and WebSocket.

Zendesk Support API

Zendesk's REST API for managing support tickets, customers, agents, organizations, and knowledge base articles. Exposes the full Zendesk Support platform including ticket management, SLA tracking, macros, triggers, automations, and the Sunshine custom objects platform for extended data models.

Agora Real-Time Communications API

Enterprise-grade real-time communications platform providing audio, video, interactive live streaming, and messaging via SDKs for all major platforms and a global edge network.

Instagram DM MCP Server

Instagram DM MCP server enabling AI agents to interact with Instagram Direct Messages — reading and sending direct messages, managing conversation threads, and integrating Instagram's messaging capabilities into agent-driven customer support, community management, and social media automation workflows.

Brevo API

All-in-one email and SMS marketing platform (formerly Sendinblue) with transactional email/SMS APIs, marketing campaigns, and contact management at competitive pricing.

Intercom API

Intercom's REST API for managing customer conversations, contacts, companies, and automated messaging workflows. Enables agents to create and reply to support conversations, manage contact and company records, trigger message sequences, and build AI-powered support bots integrated with Intercom's messaging platform.

Mailjet Email API

EU-based transactional and marketing email API with real-time sending analytics, template engine, contact management, and strong GDPR compliance story for European applications.

Sinch

Multi-channel communication platform (owner of Mailgun and Mailjet) offering SMS, voice, WhatsApp, and email APIs through a unified cloud communications platform for programmatic customer engagement.

Rocket.Chat

Open-source team messaging platform with a comprehensive REST API and real-time WebSocket API for sending messages, managing channels, users, and building bots — self-hosted alternative to Slack.

Bird (MessageBird) API

Omnichannel communications platform (rebranded as Bird) providing a unified API for SMS, WhatsApp, email, voice, and other channels for customer engagement and transactional messaging.

Customer.io

Customer engagement platform for data-driven behavioral messaging across email, push notifications, SMS, and in-app channels, triggered by user events and attributes tracked via API.

Webex API

Cisco's enterprise collaboration platform API for messaging, meetings, calling, and team collaboration. Enables building bots, sending messages, managing rooms, and integrating with Webex Meetings.

Mailchimp Marketing API

Mailchimp's REST API for email marketing, audience management, and marketing automation. Enables programmatic subscriber list management, campaign creation and scheduling, automation trigger management, and analytics retrieval.

Chatwoot API

Chatwoot's REST API for open-source, self-hostable customer support with live chat, email, and social media channel management with full data ownership.

Apple Push Notification Service (APNs)

Apple's HTTP/2-based REST API for sending push notifications to iOS, macOS, tvOS, and watchOS devices. Delivers alert, background, and silent notifications to registered device tokens with priority and expiry controls.

Dixa API

Dixa's REST API for omnichannel customer service combining phone, email, chat, and social channels in a conversation-centric platform with native routing intelligence.

WeChat MCP Server

WeChat MCP server enabling AI agents to interact with WeChat messaging — sending messages to contacts and groups, reading conversations, managing WeChat contacts, and integrating China's dominant personal messaging platform into agent-driven personal assistant and communication workflows.

Bandwidth

Tier-1 carrier and communications API providing SMS, MMS, voice calls, emergency services (E911), and phone number management with enterprise reliability and direct network access.

Crisp Chat API

Crisp's REST API and real-time messaging (RTM) WebSocket API for managing live chat conversations, contacts, campaigns, and automated messaging across websites and mobile apps. Offers both REST for CRUD operations and a WebSocket RTM layer for real-time event streaming.

Vonage Communications APIs

Vonage (formerly Nexmo) is a cloud communications platform offering SMS, voice, video, verify (2FA), and multi-channel messaging APIs. Enables agents to send SMS, place or receive calls, verify phone numbers, and send messages across WhatsApp, Viber, and other channels via a unified REST API.

WhatsApp Business API (Meta Cloud API)

Meta's Cloud-hosted WhatsApp Business API for sending template messages, free-form messages, media, and interactive messages to WhatsApp users from verified business phone numbers.

@skanda-yutori/mcp-send-email

MCP server for sending emails via Resend API

ATXP — Agent Payment & Wallet Infrastructure

Agent wallet, email, phone, and 41 paid tools: search, image/video/music gen, SMS, calls.

Aruba Email & Calendar

MCP server for Aruba email and calendar via IMAP/SMTP/CalDAV

Attrove

Query your users' Gmail, Slack, and Calendar with AI — Plaid for productivity apps

Barevalue

Submit podcast orders, check status, and manage webhooks via Barevalue editing API.

ChatSpatial

Natural language-driven spatial transcriptomics analysis with 60+ methods via MCP

Commune

Email and SMS MCP server for AI agents — 41 tools for inboxes, sending, search, and SMS.

DNS MCP Server

Real-time DNS security analysis — DNSSEC, email auth, and RDAP. Built for SOC investigations.

Email Server

Still WiP!

Email Server

Still WiP

Email Server

An MCP server that provides email capabilities, hosted on Alpic platform

Email Server

An MCP server that provides email capabilities, hosted on Alpic platform

Email Server

Still WiP

Email Server

An MCP server that provides email capabilities, hosted on Alpic platform

Email-Sender-MCP-Server

🚀 A Model Context Protocol (MCP) server that enables AI assistants to send emails via SMTP. Built with FastMCP and supports Gmail SMTP integration.

Foqal

Foqal turns Slack/Teams into efficient support platforms with AI-powered ticketing.

Funding-Machine-ghl-mcp-fundingmachine

Automate GoHighLevel across CRM, messaging, calendars, marketing, e-commerce, and billing. Manage…

Gmail

Allow AI systems to read, send, archive, and manage emails via Gmail.

Gmail-mcp-server

A resilient MCP server built with fastMCP for sending emails through Gmail's SMTP server using AI agents.

JMAP Email

Email management via JMAP — mailboxes, messages, identities, and Sieve scripts

Kognitrix AI

8 AI services via MCP: content, code, image, docs, data extraction, translation, SEO, email.

MCP FactorialHR

Full CRUD MCP server for FactorialHR: employees, teams, time off, projects, ATS, payroll.

MCP Registry Monitor

Monitor MCP registry for new servers - Discord Slack notifications alerts

MCP-wolfram-alpha

Connect your chat repl to wolfram alpha computational intelligence

Mail Tools

Email tools for creating, sending, replying, updating, deleting, and searching messages.

MailJunky

Send emails, track events, and manage contacts with MailJunky.

MailNet-MCP-Server

MailNet Mailing MCP Server

McpEmailServer

Notify MCP Server

MCP Server for notify to Weixin, Telegram, Bark, Lark, Feishu, DingTalk

OWA Exchange MCP Server

MCP server for Microsoft Exchange / OWA — email, calendar, directory, availability

Parse-DMARC MCP Server

Lightweight DMARC parser: auto-fetch email reports, visualize compliance in a single all-in-one app

Rally

Tools for Go-to-market teams creating sales materials, product demos, and deal rooms for customers.

ServerRecordMCPlugin

A Minecraft Java Edition Spigot Plugin to record changes in the server such as block updates, chats, commands, inventories, etc.

SparkForge — 20+ Utility APIs with x402 Micropayments

20+ pay-per-use APIs: image gen, crypto data, email verify, SSL check, web scraping, and more.

Stumpy

Persistent AI agents that run 24/7 in your Slack, Telegram, SMS, or email.

ZulipChat MCP Server

ZulipChat MCP: Connect AI to Zulip with 60+ tools for messaging, streams, events, and analytics

acs-email-mcp-server

C# (.NET) MCP Server that allows sending emails using Azure Communication Services.

agenticmail

Email & SMS infrastructure for AI agents — send and receive real email and text messages programmatically

better-email-mcp

IMAP/SMTP MCP server for Email with composite tools. Multi-account, auto-discovery.

blender-mcp

Fastmcp 2.14.3 Server to Create Blender 3D Scenes with Chat,

byteplant-mcp

An MCP server that provides Email, Phone and Address Validation Services from Byteplant

chat_mcp_server

Chat mcp Server

cold-email

Generate hyper-personalized cold email sequences via AI.

dilli-email-validation-api-server

An MCP server that provides tools to validate an email address using Dilli Email Validation API.

email-mcp

Unified email MCP server for Gmail, Outlook, iCloud, and IMAP with batch operations

email-mcp

IMAP/SMTP email MCP server — 47 tools, IMAP IDLE push, multi-account, AI triage.

email-mcp-server

Simple mcp server for working with emails

email-mcp-server

emailbox-mcp-server

This is MCP server to work with Email Box over IMAP/SMTP with support of both STDIO and Streaming HTTP transports and support of MCP Notifications

fast-mcp-telegram

Telegram MCP server with search and messaging capabilities

fastmcp-imap

FastMCP server for IMAP email operations with dynamic credential handling

fastmcp-sonarqube-metrics

Chat with your SonarQube data: explore metrics, compare trends, and track issues—effortlessly.

genia-mcp-server-slack

Servidor MCP para Slack integrado con GENIA

google-maps-mcp-server

Search local businesses, generate leads, and validate emails via Google Maps data

idig-dns

Professional DNS diagnostics: 14 tools for DNS, DNSSEC, email security, SSL, and propagation.

impact-mcp-server

IMPACT Framework - B2B Positioning & Messaging Tools by Shashwat Ghosh

matrix-mcp-server

MCP Server for a Matrix home server integration; chat, manage rooms, etc.

mcp

Infobip MCP server for omnichannel communication and messaging. SMS, RCS, WhatsApp, Viber and more.

mcp-dingdingbot-server

钉钉webhook MCP server

mcp-discord

MCP server for discord bot

mcp-email-server

IMAP and SMTP via MCP Server

mcp-notifications

MCP server for desktop notifications over stdio

mcp-server

MCP server for Anymail Finder API - find and verify email addresses via AI assistants

mcp-server

Is a Slack bot that acts as your assistant.

mcp-server-email

mcp-server-email

mcp-server demo about send email by golang

mcp-server-security-audit

Scan websites for security vulnerabilities, headers, TLS, and email security.

mcp-server-tempmail

MCP server for temporary email management using ChatTempMail API

mcp-slack-server

mcp_server_wechat

基于MCP技术，操作微信发送消息和获取历史记录

mcprouter

api router for MCP Servers

notification-mcp-server

outlook-mcp

Microsoft Outlook MCP server — 20 tools for email, calendar, contacts, and settings via Graph API.

pestprocrm

Manage pest control operations — customers, scheduling, SMS, payments, and reporting.

protonmail-mcp-server

MCP server for IMAP email access via ProtonMail Bridge

pushover-mcp

A MCP implementation for sending notifications via Pushover

resend-mcp

The official MCP server to send emails and interact with Resend

rust-mcp-server-email

Creates a basic SMTP mail sender in Rust.

sachicali-discordmcp-suite

Control your Discord community: send/read messages, manage channels and forums, and handle webhook…

sequenzy-mcp

AI-powered email marketing automation. Manage subscribers, campaigns, and sequences.

slack-mcp-server

slack-mcp-server

slack-mcp-server

Fork of korotovsky/slack-mcp-server with saved_list and saved_complete tools for Slack Save for Later

slack-mcp-server

A Slack MCP server

slack-mcp-server

slack-mcp-server

slack-mcp-server

The most powerful MCP Slack Server with Stdio and SSE transports, Proxy support and no permission requirements on Slack Workspace!

slack-mcp-server-wrapper

ignore me, just a temp wrapper to make cmd work for a forked project, nothing to see here

telegram-mcp

🤖 Manage multiple Telegram accounts effortlessly with AI-driven tools for bulk messaging, scheduling, and more in one easy-to-use platform.

telegram-mcp

Telegram MCP server powered by Telethon to let MCP clients read chats, manage groups, and send/modify messages, media, contacts, and settings.

terrorblade

A unified data extraction and parsing platform for messaging platforms. It features Telegram message processing, data standardisation and analytics preparation capabilities.

unichat-mcp-server

webex-mcp-server

Go-based Model Context Protocol server enabling AI assistants to interact with Cisco Webex APIs. Features messaging tools for rooms, teams, people & webhooks.

webhook-mcp-server

A Model Context Protocol (MCP) server for webhook.site - instantly capture HTTP requests, emails, and DNS lookups. Perfect for testing webhooks, debugging API callbacks, security testing, and bug bounty hunting.

webhook-tester-mcp

FastMCP server for managing and testing webhooks via webhook-test.com API

wechat-mcp

一款基于 WeChatFerry 的聊天 MCP 工具

wechat-robot-mcp-server

微信机器人MCP服务端

wecom-bot-mcp-server

A Python server implementation for WeCom (WeChat Work) bot that follows the Model Context Protocol (MCP). This server provides a standardized interface for handling automated messaging and context-aware interactions within enterprise WeChat environments.

wexin-push-mcp-server

wechat-push-mcp-server

whatsaap-mcp-server

A lightweight agent-ready messaging server built with FastMCP and Twilio to send real-time WhatsApp messages. Powered by an async Python backend.

workspace-mcp

Google Workspace MCP server for Gmail, Drive, Calendar, Docs, Sheets, Slides, Forms, Tasks, Chat.

zed-mcp-server-discord

Zed Extension for discord Integration

zed-resend-mcp-server

A Zed extension for the Resend MCP.