Communication MCP Servers

Rust MCP server and CLI for Apprise notification fan-out across dozens of delivery backends.

Rust MCP server and CLI for Gotify push notifications and message management.

Apprise notifications over MCP and CLI with authenticated stdio and HTTP transports.

Gotify notifications and app, client, and message management over MCP and CLI.

Create, test, publish, and manage Dreamlit notification workflows from AI clients.

Build, edit, and deploy Telegram bots on FlowCastle's hosted visual flow platform.

MCP server for progressive tool usage at any scale (see https://klavis.ai)

Your mailboxes in ChatGPT and Claude: Gmail, iCloud, Fastmail, any IMAP. Passwords stay yours.

Agent-first real-time messaging over MCP: self-provision channels, publish, history, presence.

Email infrastructure for AI agents: send, read replies as threads, campaigns, per-key limits.

Email for AI agents: inboxes, send/reply/forward, search, threads, webhooks — 21 SentFromAI tools.

One inbox for all your addresses: your AI agent reads, sorts, drafts and sends with your permission.

Safety-first MCP server for Discord with privacy-safe reads, audits, and reviewed administration

Send email and newsletters with Mailtea over MCP, plus skills for email and website design.

Real email inboxes for AI agents: create addresses, send, wait for mail and verification codes.

Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.

Pay-per-call APIs and MCP services for agents, no accounts or keys, with verifiable receipts.

Send and receive across email, SMS, WhatsApp, and voice. One API, one contract.

Read, organise and carefully-gated send for Proton Mail, without your mail leaving this machine.

Give your AI a real phone: place calls, send SMS, fetch recordings and transcripts. Local or hosted.

Your customer inbox as tools: read and answer WhatsApp, Telegram, Instagram and e-mail.

Business email on your own domain: mailboxes, send and read mail, aliases, DNS setup, and campaigns.

Create contact forms, get HTML/React/Next.js snippets and read recent submissions on Formgong.

Send SMS, MMS and WhatsApp, manage contacts and webhooks, from AI agents.

Human-in-the-loop for AI coding agents — ask questions, get approvals via Slack.

Read-only stats for public Telegram groups tracked by Limzo, the anti-spam bot. No API key.

Mac & Windows: let ChatGPT, Claude & Cursor use your email, calendar, iMessage, Teams, files.

Never-stored live email: read, send, organize, schedule and auto-triage Gmail or any IMAP mailbox.

Command your AI agents by voice: PTT rooms, channels, direct messages, agent email, memory (mRAG).

Build and send email, SMS, and push straight from your AI agent.

Email for agents: newsletters, subscribers, contacts, broadcasts. OAuth sign-in, no API key.

Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.

Give an AI agent its own inbox — receive email as a webhook, send over a verified domain.

Email for AI agents — send, receive as a webhook, manage domains, templates, routing.

Turn inbound email into a webhook — verify, parse, route, and store incoming messages.

Receive inbound email as clean JSON — manage domains, routes, and webhooks. MailKite.

Send transactional email over a verified domain — templates, attachments, custom headers.

Send email, manage domains, DNS, webhooks, templates, and inbound routing on MailKite

Email verification for AI agents: send, hold or kill with the reason. Signup and credits by API.

Authenticated Samva email tools, including public documentation and template discovery.

Search the Wraps docs and estimate AWS SES costs. Public, read-only, no authentication.

Send email through your own Amazon SES account, and check domains, suppressions and sandbox status.

Give an agent its own inbox: send, receive, and pull signup codes from real email.

Private, EU-hosted email for AI agents over JMAP: read, search, reply, organize, send.

Run Discord forms, surveys, polls and quizzes from your AI app: build, launch and analyze projects.

Voice and chat for AI agents — Discord, Teams, Meet, Slack, Zoom, Telegram, WhatsApp, NC Talk, SIP

Create Elaan notification types, templates and brands, trigger sends, and debug delivery.

Universal AI API Orchestrator — 1,554 tools, 96 services. One install.

Message other people's AI agents with consent: end-to-end encrypted, on a public ledger.

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

Read and write Slack with session tokens — no OAuth, no bot, no admin approval.

Email MCP server for Gmail, Outlook and any IMAP mailbox, hardened against prompt injection

FastMCP server that pages on-call via 100+ notification channels (Apprise wrapper)

Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, and triple-mode…

Free, local MCP server that audits ClickUp, Slack & Teams for work that slipped through.

Real email and SMS for AI agents — send mail, receive verification codes, drive a real inbox.

Shared task ledger for AI agents and humans: atomic claims, state machine, GitHub and Slack sync

Email tools for any IMAP/SMTP provider: list, read, search, send, and manage messages.

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

Human-in-the-loop approvals and notifications for AI coding agents through a local stdio MCP server.

Search, move, mark, delete and draft your real mail over a self-hosted index.

Multi-tenant Telegram gateway for AI agents — HTTP+stdio, 8 tools, MTProto User API

Local-first, read-only MCP server for recall over your Gmail: search, contacts, threads, digests.

Messaging between concurrent AI coding sessions, across clients, over MCP. Zero infrastructure.

Telegram Channel Scraper - No Login, $0.30 per 1K Posts

Search local email archives (.mbox/.eml) entirely on your machine. No OAuth, no cloud.

Lean Gmail MCP server with auto authentication support

Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

MCP server that gives AI agents your mailboxes through mailbox-service, within its token's rights.

Read-only MCP server for your mail — provider-agnostic IMAP that never marks a message as read.

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

Mailoo — email MCP server for IMAP, SMTP, and ManageSieve. Multi-account, per-folder profiles.

Read-only sales CRM for AI clients: leads, pipeline, AI-agent chats, calls, ad attribution.

Multi-account IMAP/SMTP email server with 22 tools for reading, sending, searching, and organizing.

Caller-owned Discord operations for AI agents with 221 typed tools and verifiable guild builds.

Connect ChatGPT, Claude & AI agents to Chatway live chat to reply to customers and manage tickets

Security-first SendGrid MCP server: dry-run default, recipient allowlists, rate caps, audit log.

Read, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.

Zero-config disposable email inboxes for AI agents: create, read mail, await verify codes.

IMAP/SMTP email MCP server — 52 tools, stdio + HTTP, IMAP IDLE push, multi-account, AI triage.

Read Proton Mail and save drafts through your local Proton Mail Bridge.

CometChat docs search + implementation bundles: add chat, voice, video & moderation to your app.

Filtered, read-only IMAP and Gmail archived to disk as .eml + markdown, served over MCP.

Gmail MCP server for email triage: search, labels, archive, trash, unsubscribe, snooze.

Send, manage, and replay ntfy push notifications via MCP.

Mail and contacts on a self-hosted Stalwart server via JMAP: search, read, OCR, send, drafts.

Ethora chat platform MCP: apps, users, rooms, AI agents, chat widgets. Hosted or stdio.

Self-hosted gateway between your iCloud mailbox and your AI assistant, with safety built in

Calendar workflow engine for time off, approvals, and quick actions on any calendar backend.

Hosted MCP server for MuntuAI outreach campaigns, leads, senders, domains, and analytics.

SDK for creating, managing, and operating Kubernetes clusters and workloads with ease.

Outlook mail and OneDrive files via Microsoft Graph — read, search, send and organize.

Self-hosted email for AI agents: own IMAP/SMTP mailbox per key, allow lists, calendar invites.

Gmail for AI agents: search, read, download attachments, send, reply, drafts, labels.

Search Gmail and Outlook, save drafts, manage email rules, and view email stats.

Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients.

Read-only-by-default MCP server for iCloud mail, calendar, and contacts (IMAP/CalDAV/CardDAV).

Feishu/Lark MCP server + CLI tool. 85 tools, 3 auth layers. Send as user via cookie+protobuf.

Cross-harness communication mesh for LLM agents — rooms, DMs, presence, and visibility over TCP

Read Proton Mail, extract bounded attachment text, and create explicitly confirmed drafts.

Multi-channel messaging MCP server for Slack, Telegram, Email, KakaoTalk, and Discord.

Post, schedule, and track social posts on X, Bluesky, LinkedIn, Instagram and more from AI agents.

Agent-to-agent chat: find rooms, read messages, post and reply.

Shared rooms and durable notes for agents over plain HTTP: rendezvous, hand-off, coordination.

Read, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.

MCP server for Resend — transactional email API for AI assistants...

Send email, push, Slack, Discord, Telegram and webhook notifications and manage templates with Ray.

MCP server for Telegram Archive — search messages, browse chats, and access history

Zero-setup WhatsApp notifications + human-in-the-loop for AI agents — text 'join', send in 60s.

Read and send SMS through your own Android phone over KDE Connect on your LAN. No cloud relay.

Phone, SMS & email for AI agents — one remote MCP endpoint, OAuth login, zero install.

Complete Resend email MCP: full API coverage + debug layer (deliverability, DNS, bounces).

Connect AI agents to your self-hosted HQBase shared email workspace.

Safe Discord access for reading guild data and optionally managing bot messages

Agent-to-agent Lightning commerce & messaging: buy, sell, discover, send encrypted files.

Apple Mail MCP server with full-coverage FTS5 body search, reliable on large mailboxes.

MCP server for the Discord REST API: 5 read tools always on, 7 write tools env-gated, default off.

Send WhatsApp, Telegram, SMS and MAX messages, files and bulk mailings via JetAPI

Multi-account email MCP server for Gmail, IMAP, and JMAP: search, send, drafts, labels.

Catch up on Slack without reading it. Unreads, threads, search. Browser-session or hosted OAuth.

Read, search, draft, send and file iCloud Mail over IMAP and SMTP. No tool destroys mail.

Full read + write access to Slack Lists for AI: create, update, check off, reassign, delete.

Send, search, and manage notifications, accounts, and push preferences

Search 1.2M+ Telegram channels, 245k+ chats, 160k+ bots — no account, no key, no install.

Make phone calls and join Zoom, Teams and Google Meet meetings from any AI agent. Self-hosted.

Scrape messages, extract leads from public Telegram channels. No login required.

Apple Mail MCP — 44 tools, SQLite millisecond search, .emlx parser, batch ops

Security-first, self-hosted email archive with search, cited answers, and sending for AI agents.

Cloudflare Workers MCP server: email-validator

Multi-tenant Telegram gateway for AI agents — HTTP+stdio, 8 tools, MTProto User API

GraphQL gateway for LLMs. Handles huge GitHub GraphQL & @neo4j/graphql schemas without crashing

Microsoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.

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

Email inbox placement tests across Gmail, Outlook, Yahoo, Mail.ru, Yandex (SPF/DKIM/DMARC).

Check an email before an AI agent sends it: send / ask a human / block. Detects prompt injection.

Tidy a large Outlook / Hotmail mailbox. Folder subtree moves, bulk ops with dry run, never sends.

Search your Google, Telegram, Spotify and Instagram exports locally. Fully offline.

Email validation MCP server using the MailboxValidator API. It can validate email addresses.

Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.

Lifts WxO Slack limits: every-message wake-up, multi-channel MCP. https://markusvankempen.github.io/

Unofficial Telegram MCP server — read, search, reply and react in your own Telegram account.

Self-hosted, consent-based access to Telegram accounts and bots for MCP clients

Lets AI clients search, explore, query, and visualize data in a Metabase instance.

Send transactional email, run campaigns, manage contacts and automations, audit deliverability.

Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.

Draft email campaigns in day3 from Claude Code, Cursor or VS Code as editable composer blocks.

Microsoft Outlook personal accounts: mail, calendar, contacts, to-do, drafts (68 tools).

Notify people through Cue: preferences, attention budgets, quiet hours and approval apply.

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

Telegram for AI agents: messages, chats, media, and contacts in bot and user-account modes.

Autonomous xRocket CEX trading inside operator-set limits, plus live market data over MCP

MCP RAG: index PDFs, repos, YouTube, Discord, text; optional YouTube vision; query with citations.

Read, search and organise any IMAP mailbox, with writes off by default

Publish ntfy notifications, read the message cache, and manage users and topic access

MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation

An address, a mailbox and a ledger for your agent, where a claim costs something.

IMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants

Read and reply to your personal Telegram chats and all your Slack workspaces.

MCP server for PumpFun on-chain intelligence — tokens, claims, holders, and bundles.

Local-first mail, calendar, and task MCP with isolated accounts and guarded writes.

Let your AI agent notify you by email, Slack, Discord, or webhook. One tool: send_notification.

Self-hosted Telegram Business MCP: search chats, read files and transcripts, optionally reply.

Unlimited agent mailboxes — create identities, read/wait for mail, extract OTPs, send email.

Gmail Postmaster Tools v2 — domains, traffic metrics, and compliance via your own Google OAuth.

Outlook.com SNDS IP Data and IP Status reports via the OAuth-secured REST API.

Discord server management MCP for AI agents: chat, moderation, admin, and full server building.

Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.

Verify email deliverability with RFC format, MX, SMTP and disposable-domain checks.

Fast local Apple Mail MCP: indexed search, full-text bodies, verified sends, triage. macOS.

A lightweight, multi-guild Discord MCP server with 95+ tools

Human-authenticated setup for routing GitHub pull requests into the right Slack channel.

A dynamic, self-refreshing MCP gateway for the complete Telegram Bot API

Agent-native installer and control plane for Paydirt iOS feedback

Read, search, send and clean up Outlook.com / Hotmail mail through Microsoft Graph.

Discord MCP Pack

Twilio MCP Pack — send SMS, list messages, make calls via Twilio REST API.

Find LinkedIn jobs and people, research companies, manage network, posts, and messages with MCP.

Manage Telegram drafts, media, schedules and publications from AI clients.

Self-hosted MCP server for unified IMAP/SMTP mailbox access: read, list, and send email.

Self-hosted MCP server: Telegram userbot control (Telethon) via HTTP and MCP.

MCP server for aiogram Telegram bots — 30 tools, 7 resources, 3 prompts, event streaming

MCP server for Titan Email (IMAP/SMTP), tested and confirmed with GoDaddy mailboxes.

MCP server for Open-Xchange: email (IMAP/SMTP), Sieve filters, CalDAV calendar, CardDAV contacts

Personal Outlook.com / Hotmail inbox: read, search, file, delete, unsubscribe via Microsoft Graph.

Outlook & OneDrive MCP: personal & enterprise tools for mail, calendar, contacts, tasks, files

Operate a self-hosted notifyd instance: digest, jobs, retries, suppressions, projects, test sends.

Wraps the taskswarm CLI as a single generic MCP tool for multi-agent task coordination.

MCP server for temporary email management using ChatTempMail API

AI email inbox and sending tools with attachments, search, live events, and webhooks.

Send email, look up public IP information, and convert files to Markdown through SendSoon.

Send email, look up public IP information, and convert files to Markdown through SendSoon.

Unofficial Proton Mail MCP — send, read, search & organize email over SMTP and IMAP

Design HTML email templates with AI: render to HTML and open them in a visual editor

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

Shipmail MCP server. Modern email for your business, with an API for your agents.

Phone notifications and phone-answered questions for AI agents: notify and decision-request tools.

Email for AI agents: send mail, manage contacts, automations & webhooks. Zero-DNS first send.

Read a personal Telegram account over MTProto; every write is a plan a human applies.

Microsoft 365 mail MCP: reads mail, drafts into Outlook; sending is opt-in (IRIS_ENABLE_SEND).

Manage Apache Kafka on Kubernetes via Strimzi. Clusters, topics, users, connectors, MM2.

Manage Teletype support conversations, customers, messages, and workspace settings

Production IMAP & SMTP for Claude: multi-account email search, triage, send, and spam checks.

Human-authenticated setup for routing GitHub pull requests into the right Slack channel.

Telegram on your own account: read, search, send and press bot buttons. Writes need your approval.

Local-first TDLib Telegram MCP server with 115 tools, account isolation and production guardrails.

MCP server for Tomba email finder, verification, and contact enrichment API

Local-first, read-only MCP server for recall over your Gmail: search, contacts, threads, digests.

Give AI agents full read/write email access via Mozilla Thunderbird. Zero credentials.

Local MCP tools for server-readable agent inboxes and sending to owner-approved recipients.

Hosted agent inboxes: read mail, send to owner-approved recipients. Mail is server-readable.

244 WhatsApp Business AI tools for messaging, automation, marketing, CRM and Shopify

Fully-managed email as MCP tools - register domains, real mailboxes, send and receive mail.

Read-only, self-hosted MCP access to IMAP email, mirrored locally and indexed by notmuch.

Discord for LLM agents: 168 tools for messages, moderation, channels, roles, threads and AutoMod.

End-to-end-encrypted, sovereign inbox for AI agents. The server only ever sees ciphertext.

Local-first grocery price intelligence with a read-only MCP server.

Business phone and SMS for teams: calls, texts, transcripts, contacts and call flows.

Let your coding agent write to your work tracker: issues, branches, PRs and CI, one contract.

Connect inboxes to your AI, with built-in progress and optional owner-confirmed outgoing email.

Feishu/Lark MCP server + CLI tool. 85 tools, 3 auth layers. Send as user via cookie+protobuf.

Callback URLs, email return paths, ordered events and JSON context for ephemeral AI agents.

AI agent email — 23 tools free to read inbox, 28 paid to send. $9.99/mo. Token auto-provisioned.

Local-first productivity: email, calendar, messaging, search, image gen. 49 tools. BYOK.

Telegram channel analytics and statistics for AI agents, pay-per-call in USDC via x402.

Send transactional email from your editor — describe the event, Sendable writes and sends it.

Privacy-focused email: domains, DNS verification, aliases, SMTP sending, mailboxes and calendars.

List, configure, chat with, analyse and embed your Echo AI assistants.

MCP server for self-hosted Gotify push notifications and message management.