MCP servers for communication

elie222/inbox-zero

↗

The world's best AI personal assistant for email. Open source app to help you reach inbox zero fast.

No credential named

aldinokemal/go-whatsapp-web-multidevice

↗

GOWA - WhatsApp REST API with support for UI, Multi Account, Webhooks, and MCP, and Chatwoot. Built with Golang for efficient memory use.

No credential named

taylorwilsdon/google_workspace_mcp

↗

Control Gmail, Google Calendar, Docs, Sheets, Slides, Chat, Forms, Tasks, Search & Drive with AI - Comprehensive Google Workspace MCP Server & CLI Tool

Needs GOOGLE_OAUTH_CLIENT_SECRET

Houseofmvps/codesight

↗

Universal AI context generator. Saves thousands of tokens per conversation in Claude Code, Cursor, Copilot, Codex, and more.

Needs JWT_SECRET · RESEND_API_KEY · STRIPE_SECRET_KEY · STRIPE_WEBHOOK_SECRET

chatmcp/mcp-server-chatsum

↗

Query and Summarize your chat messages.

No credential named

line/line-bot-mcp-server

↗

MCP server that integrates the LINE Messaging API to connect an AI Agent to the LINE Official Account.

Needs CHANNEL_ACCESS_TOKEN

a-bonus/google-docs-mcp

↗

The Ultimate Google Docs, Sheets, Drive, Gmail, & Google Calendar MCP Server. This MCP (primarily for use in Claude Desktop) gains full access to your google suite and lets claude do its thing.

Needs GOOGLE_CLIENT_SECRET · JWT_SIGNING_KEY

SaseQ/discord-mcp

↗

A MCP server for the Discord integration. Enable your AI assistants to seamlessly interact with Discord. Enhance your Discord experience with powerful automation capabilities.

Needs DISCORD_TOKEN

graphlit/graphlit-mcp-server

↗

Model Context Protocol (MCP) Server for Graphlit Platform

Needs DISCORD_BOT_TOKEN · GITHUB_PERSONAL_ACCESS_TOKEN · GOOGLE_EMAIL_CLIENT_SECRET · GOOGLE_EMAIL_REFRESH_TOKEN · GRAPHLIT_JWT_SECRET · JIRA_TOKEN · LINEAR_API_KEY · NOTION_API_KEY

Wh1isper/mcp-email-server

↗

Full-featured, multi-account MCP email server for Windows, macOS, and Linux—read, search, organize, and send email via IMAP and SMTP.

No credential named

chaindead/telegram-mcp

↗

Telegram MCP for managing dialogs, messages, drafts, read statuses, and more.

No credential named

dryeab/mcp-telegram

↗

MCP Server for Telegram

No credential named

v-3/discordmcp

↗

Discord MCP Server for Claude Integration

Needs DISCORD_TOKEN

KOBA789/human-in-the-loop

↗

An MCP (Model Context Protocol) server that allows AI assistants to ask questions to humans via Discord.

Needs DISCORD_TOKEN

aaronsb/google-workspace-mcp

↗

A Model Context Protocol (MCP) server that provides authenticated access to Google Workspace APIs, offering integrated Authentication, Gmail, Calendar, and Drive functionality

Needs GOOGLE_CLIENT_SECRET

sparfenyuk/mcp-telegram

↗

MCP server to work with Telegram through MTProto

No credential named

floriscornel/teams-mcp

↗

MCP server providing comprehensive Microsoft Teams and Graph API access for AI assistants including messaging, search, and user management.

Needs AUTH_TOKEN

ZilongXue/claude-post

↗

ClaudePost enables seamless email management through natural language conversations with Claude, offering secure features like email search, reading, and sending.

Needs EMAIL_PASSWORD

twilio-labs/mcp

↗

Monorepo providing 1) OpenAPI to MCP Tool generator 2) Exposing all of Twilio's API as MCP Tools

No credential named

Rich627/whatsapp-claude-plugin

↗

Claude Code WhatsApp channel plugin — run AI directly from WhatsApp, voice transcription, remote tool approval, access control. No API keys, no Docker, just a linked device.

No credential named

tecnologicachile/mail-mcp

↗

Secure IMAP/SMTP/EWS/Graph API MCP server in Rust — Microsoft 365, Hotmail, Gmail, Zoho, OAuth2, multi-account

Needs MAIL_OAUTH2_DEFAULT_CLIENT_SECRET · MAIL_OAUTH2_DEFAULT_REFRESH_TOKEN · MAIL_OAUTH2_WORK_CLIENT_SECRET · MAIL_OAUTH2_WORK_REFRESH_TOKEN

barryyip0625/mcp-discord

↗

Implement Discord MCP server enabling AI assistants to interact with the Discord platform.

Needs DISCORD_TOKEN

loonghao/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.

No credential named

Shy2593666979/mcp-server-email

↗

一个基于 MCP (Model Context Protocol) 的邮件服务，支持 LLM 发送带附件的电子邮件及在指定目录中搜索文件。提供安全的 SMTP 传输、多收件人支持和附件模式匹配搜索功能，适用于 Gmail、Outlook、Yahoo、QQ 邮箱和网易 126 邮箱等主流邮箱服务。

No credential named

jlucaso1/whatsapp-mcp-ts

↗

WhatsApp MCP Server (TypeScript/Baileys)

No credential named

mailgun/mailgun-mcp-server

↗

Implementation of Model Context Protocol server for Mailgun APIs

Needs MAILGUN_API_KEY

shinzo-labs/gmail-mcp

↗

MCP Implementation for Gmail Services

No credential named

mcp-telegram/mcp-telegram

↗

Telegram MCP server: connect your personal Telegram account to Claude, ChatGPT, Cursor and any MCP client. 182 tools over MTProto. Self-host with npx or Docker, or use the hosted version.

Needs TELEGRAM_2FA_PASSWORD · TELEGRAM_PROXY_SECRET

baryhuang/mcp-headless-gmail

↗

A MCP (Model Context Protocol) server that provides get, send Gmails without local credential or token setup.

No credential named

sinadarbouy/mcp-nats

↗

A Model Context Protocol (MCP) server for NATS messaging system integration

Needs NATS_PASSWORD

leshchenko1979/fast-mcp-telegram

↗

Telegram MCP gateway for AI agents: 8 tools, multi-tenant HTTP/stdio, MTProto

No credential named

leeguooooo/mail-use

↗

Email for AI agents — read, search, send and triage Gmail / QQ / 163 / any IMAP from the CLI or MCP. Part of the *-use family.

No credential named

kfastov/tgcli

↗

Telegram user console client and archiver

No credential named

littlebearapps/outlook-assistant

↗

MCP server for Outlook email, calendar, and contacts — let your AI assistant manage your inbox directly from the conversation.

Needs OUTLOOK_CLIENT_SECRET

HardHeadHackerHead/discord-mcp

↗

Manage your entire Discord server from Claude Code, Claude Desktop, Cursor, or Windsurf via MCP. 134 admin tools across 20 categories. Interactive setup wizard included.

Needs DISCORD_TOKEN

aiteks-ltda/mcp-evolution-whatsapp-api

↗

MCP server for evolution, the non official api for whatsapp

Needs EVOLUTION_API_KEY · REPLACE_WITH_YOUR_REAL_KEY

Garoth/sendgrid-mcp

↗

Allows AI Agents to interact with the Twilio SendGrid v3 API, managing contact lists, templates, single sends, and stats

Needs SENDGRID_API_KEY

jtalk22/slack-mcp-server

↗

Put your agent inside your Slack. Zero bots, zero admin queues, no Business+ upgrade — 20+ tools for stealth search, thread parsing and mention tracking.

No credential named

j3k0/mcp-google-workspace

↗

MCP Server for Gmail and Calendar

No credential named

epaproditus/google-workspace-mcp-server

↗

A Model Context Protocol server for Google Workspace integration (Gmail and Calendar)

Needs GOOGLE_CLIENT_SECRET · GOOGLE_REFRESH_TOKEN

mario-andreschak/mcp-whatsapp-web

↗

WhatsApp MCP server

No credential named

marlinjai/email-mcp

↗

Unified MCP server for email access across Gmail, Outlook, iCloud, and IMAP

Needs EMAIL_MCP_KEY

AVIMBU/slack-mcp-server

↗

A Model Context Protocol Server for Interacting with Slack

Needs SLACK_BOT_USER_OAUTH_TOKEN

theposch/gmail-mcp

↗

A Gmail MCP server

No credential named

PaulFidika/gmail-mcp-server

↗

A single-file MCP-server for interacting with Gmail. Works with Claude Desktop and Cursor.

Needs GMAIL_CLIENT_SECRET · OPENAI_API_KEY

answerloops/answerloops

↗

⭐️ Self-hostable AI support for Discord, GitHub, Slack & Discourse communities. Answers from your knowledge source, checked by a second AI agent, approved by your team before it's sent.

Needs AUTH_GOOGLE_SECRET · AUTH_SECRET · BOT_SECRET · ENCRYPTION_KEY · OPENAI_API_KEY

darinkishore/Inbox-MCP

↗

A Model Context Protocol (MCP) server for email integration via Nylas. Enables AI assistants to effortlessly batch-triage, organize, and automate email through natural language interactions.

Needs NYLAS_ACCESS_TOKEN

vakharwalad23/google-mcp

↗

Collection of Google-native tools (e.g., Gmail, Calendar) for the MCP

Needs GOOGLE_OAUTH_CLIENT_SECRET · GOOGLE_PRIVATE_KEY

1fancy/sms8-sms-gateway

↗

MCP server for AI coding tools and developers to integrate SMS messaging, notifications, OTPs, alerts, reminders, and automations into apps using real Android devices via SMS8.io.

Needs NEXT_PUBLIC_SMS8_API_KEY · SMS8_API_KEY · SMS8_WEBHOOK_SECRET

bakissation/mcp-google-multi

↗

Multi-account Google MCP server for Claude Code: Gmail, Drive, Calendar, Sheets, Docs, Contacts, Search Console, and more. ~871 tools with OAuth2 multi-account switching.

Needs GOOGLE_CLIENT_SECRET

jamiequint/groundeffect

↗

Hyper-fast, local Gmail and Google Calendar indexing for Claude Code.

Needs GE_TOKEN_ENCRYPTION_KEY · GROUNDEFFECT_GOOGLE_CLIENT_SECRET · OPENROUTER_API_KEY

YiyangLi/sms-mcp-server

↗

A Model Context Protocol (MCP) server that enables Claude and other AI assistants to send SMS messages using Twilio.

Needs AUTH_TOKEN

dominik1001/imap-mcp

↗

📧 An IMAP Model Context Protocol (MCP) server to expose IMAP operations as tools for AI assistants.

Needs IMAP_PASSWORD

pendpost/pendpost

↗

The agent-first social media planner: an AI agent drafts and schedules posts across Instagram, Facebook, LinkedIn, YouTube, X, Telegram, Discord, Mastodon, Nostr, WordPress, Ghost, and more, behind a human approval gate you control. Free, open source (MIT), local-first, MCP-native.

Needs GHOST_ADMIN_API_KEY · MASTODON_ACCESS_TOKEN · TELEGRAM_BOT_TOKEN

CLoaKY233/MIST

↗

MCP server empowering AI assistants with real-world capabilities: Gmail, Calendar, Tasks, Git integration, and note management. Bridges AI assistants to external services through standardized protocol with secure authentication.

No credential named

albretsen/mcpemails

↗

Hosted email MCP server for AI agents. Connect Gmail, Fastmail, iCloud, or IMAP to Claude, ChatGPT, Cursor, and any MCP client.

Needs CSRF_SECRET · ENCRYPTION_KEY · IMAP_PASSWORD

Monadical-SAS/zulip-mcp

↗

A model context protocol server for zulip

Needs ZULIP_API_KEY

Sealjay/mcp-whatsapp

↗

Single-binary Go MCP server that wraps whatsmeow to expose a personal WhatsApp account as 42 MCP tools (messaging, groups, polls, media, privacy).

Needs WHATSAPP_MCP_TOKEN

quinnjr/google-mcp

↗

Model Context Protocol (MCP) server for Google Workspace - Calendar, Gmail, Drive, Docs, Sheets, Slides, Meet, Chat, Forms, YouTube, Tasks, and Contacts with OAuth 2.0 authentication

No credential named

lars-hagen/slack-user-mcp

↗

Model Context Protocol server for authorized Slack workspace automation

Needs SLACK_TOKEN

nkapila6/mcp-meme-sticky

↗

Create AI generated memes using MCP Meme Sticky. Can converted generated memes into stickers for Telegram or WhatsApp (WA coming soon). ✨ no APIs required ✨.

No credential named

MaitreyaM/Gmail-mcp-server

↗

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

Needs SMTP_PASSWORD

onEnterFrame/lobsterroll

↗

🦞 Agent-native messaging — where AI agents and humans are equal participants. Open source, self-hostable, MCP-ready.

No credential named

ajbr0wn/gmail-mcp-server

↗

MCP server for Gmail integration

No credential named

alexandertsai/mcp-telegram

↗

An MCP for telegram to integrate with Claude desktop.

No credential named

exilproductions/discord-mcp

↗

A MCP Server for Interacting with Discord Servers

No credential named

ParthJadhav/telegram-notify-mcp

↗

A dead-simple MCP server with one job: send AI agent progress back to you on Telegram.

Needs TELEGRAM_BOT_TOKEN

GeiserX/telegram-archive-mcp

↗

MCP Server for Telegram-Archive — search messages, browse chats, and access archived Telegram history via MCP

No credential named

talm/eclincher-mcp-server

↗

Full-stack social media MCP server — publish, inbox, analytics across 8 networks

No credential named

UseJunior/email-agent-mcp

↗

Email connectivity for AI agents — MCP server for Claude Code, Gemini CLI, Cursor, and more

No credential named

lassare-hq/agent-configs

↗

Control Claude Code, Cursor & Gemini CLI remotely — answer agent questions from your phone via Slack

No credential named

matheusbuniotto/go-google-mcp

↗

Model Context Protocol (MCP) server for Google Workspace. Secure CRUD for Drive, Gmail, Calendar, Sheets, Docs, Tasks and People via AI agents.

No credential named

CDataSoftware/microsoft-teams-mcp-server-by-cdata

↗

This read-only MCP Server allows you to connect to Microsoft Teams data from Claude Desktop through CData JDBC Drivers. For full CRUD support, check out the first managed MCP platform: CData Connect AI (https://www.cdata.com/ai/).

No credential named

InitechSoftware/whatsapp-mcp-by-timelinesai

↗

WhatsApp MCP by TimelinesAI: run your team's WhatsApp inbox from ChatGPT, Claude, Cursor, Gemini or any AI assistant.

No credential named

mexican75/simple-email-mcp

↗

Dead-simple multi-account email MCP server for Claude. IMAP/SMTP, attachments, HTML, calendar invites, optional send gate. Works with any provider.

No credential named

deyikong/sendgrid-mcp

↗

Sendgrid MCP, Contacts, Templates, Campaigns, Stats, etc. more to come. With READ_ONLY option.

Needs ACCESS_TOKEN · MCP_AUTH_TOKEN · SENDGRID_API_KEY

Abhi5h3k/MCP-Email-Verify

↗

A lightweight Model Context Protocol (MCP) server that enables your LLM to validate email addresses. This tool checks email format, domain validity, and deliverability using the AbstractAPI Email Validation API. Perfect for integrating email validation into AI applications like Claude Desktop.

Needs ABSTRACT_API_KEY

Prgebish/mcp-telegram

↗

MCP server for Telegram — connect Claude to your real Telegram account via User API (MTProto)

No credential named

schroejahr2/deribit-mcp

↗

Deribit MCP server with Telegram notifications and GHCR container publishing

Needs DERIBIT_API_KEY · DERIBIT_EVENT_ADMIN_TOKEN · MCP_SHARED_SECRET · TELEGRAM_BOT_TOKEN

craigjmidwinter/mail-muncher

↗

An email client for AI agents. Filtered, read-only Gmail delivered to disk as .eml + markdown, and served over MCP.

Needs IMAP_PASSWORD

Py2755/aiogram-mcp

↗

MCP server middleware for aiogram Telegram bots — expose your bot to AI agents via the Model Context Protocol

Needs BOT_TOKEN

FlowCastle/telegram-bot-templates

↗

Ready-to-use Telegram bot templates + MCP server — build Telegram bots with Claude Code, Codex, or Cursor. By FlowCastle.

Needs FLOWCASTLE_MCP_TOKEN

kushal45/GmailMcpServer

↗

MCP Server to include configurable functionalities/manipulation which can be done for a Gmail user by using MCP Server and integrating with MCP Client like Claude for the integration

Needs GOOGLE_CLIENT_SECRET

FranciscoYuster/claude-client-gmail-mcp

↗

Acceso de asistentes de IA a Gmail mediante Model Context Protocol (MCP)

No credential named

ivanmak/whatsagent

↗

Local Messaging and Task Tracking to Connect Coding Agents

No credential named

nkiyohara/corresync

↗

Local-first MCP server and CLI for email and calendars across Outlook, Gmail, Microsoft 365, JMAP, IMAP/SMTP, and CalDAV. Preview-before-commit writes; no hosted relay.

No credential named

Dr4x14913/imap-mcp

↗

imap mcp server

Needs IMAP_PASSWORD

Zavdielx89/slack-notification-mcp

↗

MCP server for sending notifications to Slack channels via Slack channel incoming webhooks.

No credential named

aukik/whatsapp-mcp

↗

WhatsApp MCP server

No credential named

encryrose/betterdiscord-mcp

↗

BetterDiscord ↔ MCP bridge: let Claude collect data from Discord servers

No credential named

Rohit678/whatsapp-mcp

↗

WhatsApp MCP Server + CLI - control WhatsApp from AI assistants like Claude

No credential named

coti-io/coti-agent-messaging

↗

Private agent-to-agent messaging on COTI with encrypted chunked messages, native-token rewards, SDK/MCP tooling, and outreach automation.

Needs MOLTBOOK_API_KEY · MOLTBOOK_LLM_API_KEY

ariaxhan/agentmailkit

↗

Scheduled, LLM-written email digests that run on your machine, read your own files, and send from your own inbox. Deterministic, not autonomous.

No credential named

karateboss/mcp_email_reader

↗

Model Context Protocol (MCP) server to connect to an email server and to read emails

Needs EMAIL_SECRET_KEY

masseater/slack-webhook-mcp

↗

A Model Context Protocol (MCP) server that enables LLM applications to send messages to Slack via webhooks

No credential named

CDataSoftware/twilio-mcp-server-by-cdata

↗

This read-only MCP Server allows you to connect to Twilio data from Claude Desktop through CData JDBC Drivers. For full CRUD support, check out the first managed MCP platform: CData Connect AI (https://www.cdata.com/ai/).

No credential named

pilot-protocol/pilot-mcp

↗

Your agent's overlay network. Pilot Protocol as one MCP server — local or hosted SSH/HTTP. 435 specialist agents + P2P A2A messaging on a 190k-node network.

No credential named

erickva/google-workspace-mcp-server-no-calendar-deletetion

↗

A Model Context Protocol server for Google Workspace integration (Gmail and Calendar)

Needs GOOGLE_CLIENT_SECRET · GOOGLE_REFRESH_TOKEN

target1m/ravenpost-mcp

↗

Hosted MCP server for Ravenpost — schedule and publish social posts to Instagram, TikTok, X, LinkedIn, YouTube, Pinterest, Facebook, Telegram, Threads and Bluesky from an AI assistant.

No credential named

YS-projectcalc/agent-cold-email

↗

Coldrig — cold email infrastructure run entirely by your coding agent (Claude Code / Codex / Cursor / Cline). One token, 28 intent-level MCP + HTTP tools and an npm CLI: domain purchase, mailboxes, warmup, sequences, replies, deliverability guardrails. Free fault-injecting sandbox.

Needs COLDRIG_TOKEN

maaakso/contexter-mcp

↗

Contexter — one project context across ChatGPT, Claude, Telegram and any MCP client. Hosted remote MCP server (Streamable HTTP, OAuth 2.1).

No credential named

aukik/whatsapp-mcp-ts

↗

WhatsApp MCP Server (TypeScript/Baileys)

No credential named

sinch/sinch-mcp-server

↗

Exposing Sinch's APIs as MCP Tools

Needs APPLICATION_KEY · APPLICATION_SECRET · GEOCODING_API_KEY · KEY_SECRET · MAILGUN_API_KEY

junct-bot/wormhole-mcp

↗

Wormhole MCP server - 69 tools for cross-chain bridging and messaging. Hosted by Junct.

No credential named

kentaroh7777/mcp-email-server

↗

複数e-mailアカウントを扱うMCPサーバー

Needs EMAIL_ENCRYPTION_KEY · GMAIL_CLIENT_SECRET

kukapay/dex-metrics-mcp

↗

An MCP server that tracks trading volume metrics segmented by DEX, blockchain, aggregator, frontend, and Telegram bot.

Needs DUNE_API_KEY

hypawave/mcp

↗

MCP server for Hypawave — give your AI agent an address. Private agent-to-agent messaging, encrypted file handoffs, and buying or selling APIs, data & compute over Bitcoin Lightning. Non-custodial, no accounts; the payment proof unlocks the result.

No credential named

pliablepixels/claude-gmail-mcp

↗

Super simple MCP gmail server for claude, so it can send messages

Needs GMAIL_APP_PASSWORD

VibeCodingInc/vibe-mcp

↗

The /vibe client — intelligent messaging in your coding session (Claude Code, Codex, Cursor). Public source-of-record for the slashvibe-mcp npm package.

No credential named

Perufitlife/postwire-mcp

↗

Post to TikTok, Instagram, YouTube, LinkedIn, Facebook Pages, Bluesky, Telegram, Mastodon & Discord from one API call — MCP server + REST for Claude, Cursor and any AI agent. Free tier, no card.

Needs POSTWIRE_API_KEY

CDataSoftware/sendgrid-mcp-server-by-cdata

↗

This read-only MCP Server allows you to connect to SendGrid data from Claude Desktop through CData JDBC Drivers. For full CRUD support, check out the first managed MCP platform: CData Connect AI (https://www.cdata.com/ai/).

No credential named

rocnubie/disservers-mcp

↗

Dis Servers is an evidence-first directory for game community Discord servers. A listing is intended to show a direct invite together with first-party source proof, platform details, the verification time, and an invite health check.

No credential named

csitte/mailwarden

↗

A reliable, native Gmail MCP server with full mailbox control — including snooze.

Needs MAILWARDEN_TOKEN

adeshatole/telegram-notifier-mcp

↗

MCP server for sending notifications via Telegram Bot API

Needs TELEGRAM_BOT_TOKEN

snow884/adam-network

↗

Adam network is an AI-agent friendly social network / messaging board

No credential named

arthjhon/mcp-gmail-manager

↗

Gmail MCP server (33 tools) with optional recipient allowlist and local audit log

No credential named

bluetieroperations-create/blackwall-mcp

↗

BLACK_WALL MCP server — a pre-action risk check your AI agent calls before any irreversible action (send email, move money, run SQL, delete data).

Needs BLACKWALL_API_KEY

CDataSoftware/gmail-mcp-server-by-cdata

↗

This read-only MCP Server allows you to connect to Gmail data from Claude Desktop through CData JDBC Drivers. For full CRUD support, check out the first managed MCP platform: CData Connect AI (https://www.cdata.com/ai/).

No credential named

spranab/discord-mcp

↗

Run a Discord server from an AI assistant — 30+ actions across messages, channels, roles, members, moderation, threads, webhooks, invites and the audit log, behind one hierarchical MCP tool with tiered discovery.

No credential named

agenciabakucl-coder/usagewall

↗

UsageWall — Live LLM pricing as an MCP server for Claude and any MCP client. Free, read-only. Six tools: list_models, get_model, compare_models, estimate_cost, cheapest_for, list_providers.

Needs RESEND_API_KEY · SUPABASE_SERVICE_ROLE_KEY · UNSUBSCRIBE_SECRET

Deploya-labs/mcp-resend

↗

Send emails directly from Cursor with this email sending MCP server

Needs RESEND_API_KEY

CDataSoftware/email-mcp-server-by-cdata

↗

This read-only MCP Server allows you to connect to Email data from Claude Desktop through CData JDBC Drivers. For full CRUD support, check out our MCP Server for Email (https://www.cdata.com/drivers/email/download/mcp).

No credential named

acro5piano/yagms

↗

Yet Another Gmail MCP Server

No credential named

adsytd1/dosai-api

↗

Public REST API and MCP server of DOS AI (dosai.pro): AI assistants (chatbots) for WhatsApp, Instagram and Telegram with built-in CRM. OpenAPI spec, MCP tools, runnable examples.

Needs DOSAI_KEY

HeurisTech/gmail-mcp-server

↗

Provides tools for common operations with gmail.

Needs CLIENT_SECRET · REFRESH_TOKEN

lettr-com/lettr-mcp

↗

Deprecated — use Lettr's hosted MCP server at app.lettr.com/mcp (OAuth or API key). Still works, no longer updated.

Needs LETTR_API_KEY

mkusaka/mcp-server-slack-notify

↗

MCP server for sending notifications to Slack using OAuth bot tokens.

Needs SLACK_BOT_TOKEN

mustafa-boorenie/twilio_sms_mcp

↗

Web-hosted SMS MCP Server

Needs AUTH_TOKEN

s-yu-yu-yu/discord-notification-mcp

↗

Discord Botでメンションを送信するMCP

No credential named

x3clv/promtpress-mcp

↗

MCP server for PromtPress — buy Telegram subscribers and website traffic from your AI assistant. The agent spends within a mandate; it can never fund or withdraw.

No credential named

CDataSoftware/slack-mcp-server-by-cdata

↗

This read-only MCP Server allows you to connect to Slack data from Claude Desktop through CData JDBC Drivers. For full CRUD support, check out the first managed MCP platform: CData Connect AI (https://www.cdata.com/ai/).

No credential named