Slack workspace integration for agents. Read messages, post to channels, manage threads, and search workspace history.

MCP server for Discord bot integration, enabling agents to read and send messages, manage channels, and interact with guild members.

Official Twilio MCP server. Send SMS and WhatsApp messages, make voice calls, manage phone numbers, and access Twilio's communications APIs from agents.

Send transactional and marketing emails via Resend from MCP clients. Compose HTML or plain-text emails, manage audiences, and track delivery — no SMTP setup needed.

Send emails via Twilio SendGrid from MCP clients. Supports transactional messages, dynamic templates, and list management using your SendGrid API key.

Send messages, manage channels, and interact with Microsoft Teams workspaces from AI agent workflows via the Microsoft Graph API.

Manage email marketing campaigns, subscriber lists, and audience segments via Mailchimp from AI agent workflows.

Interact with Intercom customer messaging. Search conversations, create and reply to tickets, manage contacts, and surface customer data for support agents.

Read, search, and send Gmail messages from AI agents. Access inbox threads, compose emails, manage labels, and retrieve attachments via the Gmail API.

Send and receive messages via WhatsApp Business API. Handle templates, media messages, interactive buttons, and message status tracking for business communication at scale.

Build and operate Telegram bots via the Bot API. Send messages, manage groups, handle commands, inline queries, and webhooks. Supports media, polls, and rich UI elements.

Loom video messaging via MCP. Access video library, retrieve transcripts, manage spaces, and search recordings from agents.

E-commerce marketing automation for email and SMS. Manage lists, segments, flows, and campaigns. Power personalized marketing from agent workflows.

Behavioral marketing automation platform. Send targeted messages based on user actions. Manage campaigns, broadcasts, and transactional messages.

All-in-one marketing platform for email, SMS, WhatsApp, and chat. Send transactional and marketing messages, manage contacts and campaigns at scale.

Open-source notification infrastructure for developers. Manage in-app, email, SMS, push, and chat notifications via a unified API and workflow engine.

Developer-first notification infrastructure. Build and manage cross-channel notification workflows across email, SMS, push, in-app, and Slack.

Manage Zoom meetings, webinars, and recordings via natural language. Create meetings, list participants, retrieve transcripts, and manage scheduling through the Zoom API.

Manage customer conversations via Crisp. Read and reply to support tickets, update contact profiles, search conversation history, and trigger automated messages.

Official MCP server for Adobe Marketo Engage marketing automation platform. 100+ operations across forms, programs, smart campaigns, leads, and emails. Enables AI agents to manage marketing workflows at scale.

MCP server for ActiveCampaign — the customer experience automation platform. Manage contacts, trigger automations, track deals, and power email marketing workflows from AI agents.

MCP server for LiveKit — the open-source real-time audio/video infrastructure. Create rooms, manage participants, stream audio to AI agents, and build voice-enabled agent pipelines with WebRTC.

MCP server for Courier — the multi-channel notification infrastructure platform. Send and manage notifications across email, SMS, push, Slack, and 20+ channels from a single AI-accessible API.

MCP server for Agora — the real-time voice, video, and interactive live streaming platform. Manage channels, tokens, cloud recording, and real-time transcription from AI agents building voice-enabled workflows.

Open-source MCP server from Iterable enabling AI agents to interact with the cross-channel marketing automation platform. Allows campaign management, customer segmentation, journey orchestration, and marketing analytics through the Model Context Protocol. Currently in beta with over 90% of Iterable customers already leveraging AI agents.

Hosted MCP server from Truelist that brings email validation directly into AI assistants and development environments. Enables AI agents to validate individual emails, manage batch verification jobs, check account usage, and explore validation results through MCP-compatible clients including Claude, Cursor, and VS Code. Eliminates the need for direct API integration by exposing Truelist email verification capabilities as MCP tools that any compatible client can invoke.

MCP server from MoEngage that opens the customer engagement platform to the enterprise AI stack. Part of the Merlin AI Custom Agents launch in June 2026. Enables AI tools like Claude and ChatGPT to access MoEngage data and tools for marketing automation, campaign management, customer segmentation, and engagement analytics. Provides marketer-defined guardrails and full visibility into agent actions. Designed for enterprise marketing teams building custom AI agent workflows that interact with customer engagement data.

MCP server from Front that provides AI agents with access to customer communication data and workflows within the Front platform. Currently in beta. Allows external AI agents and MCP-compatible tools to access Front context for running complex communication workflows, managing conversations, and coordinating across shared inboxes. Part of Front's broader initiative to bring external AI agents into workspaces as governed teammates with built-in access controls.

Official MCP server from Fastmail that gives AI agents access to email, calendar, and contacts through the JMAP protocol. Hosted at api.fastmail.com/mcp with OAuth authentication providing three permission levels: read-only, write, and send. Enables AI assistants to search and organize emails, draft and send messages, manage calendar events with participants, and look up contacts. Works with Claude, ChatGPT, and any MCP-compatible client. Launched April 2026. No local installation required — connects directly to Fastmail's hosted endpoint.

LinkedIn prospecting automation MCP server that manages contacts, launches outreach sequences, and tracks responses through 19 AI-callable tools. Automates the LinkedIn prospecting pipeline from contact discovery through follow-up tracking. Designed for sales teams and recruiters using AI agents to scale LinkedIn outreach workflows. Released June 2026. Commercial MCP server with managed hosting.

Telephony and messaging MCP server that lets AI agents trigger voice calls, SMS, and automated customer outreach through structured prompts. Connects to Exotel's communication stack for real-time voice and text interactions without requiring API development. Supports call initiation, SMS with fallback logic, WhatsApp messaging, and conversation flow management. Works with Claude, ChatGPT, and other LLMs. Open source on GitHub. Created by Exotel.

Sendoso's MCP server for AI-powered personalized gifting and direct mail. Enables AI agents to send personalized gifts, eGifts, and direct mail based on intent signals. Works with Claude, ChatGPT, Salesforce Agentforce, and other MCP clients.

MCP server from VoIPstudio connecting business VoIP and telephony data to AI assistants including Claude. Provides access to call records, voicemail transcriptions, call analytics, and communication workflows. Requires the CX Addon on any VoIPstudio account. Enables AI-driven call analysis, routing optimization, and customer experience insights.

MCP server from Bandwidth (NYSE: BAND) giving AI agents autonomous access to the Bandwidth Communications Cloud. Once authenticated, agents can provision phone numbers, manage messaging services, configure voice routing, and automate telecom workflows through Bandwidth APIs. Part of the Bandwidth Build platform for AI-native communications.

Official hosted MCP server from X (formerly Twitter), announced June 30, 2026. Provides AI assistants and coding agents with direct access to the X API through a single endpoint at api.x.com/mcp using Streamable HTTP. Supports 26 tools covering timelines, search, posting, engagement (likes, retweets, bookmarks), user lookup, follower export, mentions, articles, and lists. Users authenticate with their own X account permissions via OAuth. Compatible with Claude, Cursor, Grok Build, and other MCP clients.

MCP server from Publora for unified social media publishing across 10 platforms. Exposes 18 tools that let AI assistants like Claude, Cursor, and Codex manage social media in plain language including posting, scheduling, reading feeds, commenting, reacting to mentions, and replying to messages across Instagram, LinkedIn, X, TikTok, YouTube, Facebook, Threads, Bluesky, Mastodon, and Telegram with a single call. Starter plan free for 9 platforms.

Hosted MCP server from Datawizz Inc that lets AI agents place real phone calls on a user's behalf using the user's own verified phone number as caller ID. Includes mandatory AI disclosure, recorded transcripts and anti-spam limits. Designed for tasks like restaurant reservations, contractor quotes, medical appointments and small-business scheduling that remain phone-only. Works with Claude, Claude Code, ChatGPT and Cursor via remote MCP over OAuth. Launched July 29, 2026.

MCP server from Sinch, a global cloud communications platform, that gives AI assistants direct access to live Sinch API definitions and structured product knowledge covering configuration and implementation patterns. Part of the Sinch Agent Tools suite which includes extensions for Visual Studio Code, JetBrains IDEs and other Open VSX-compatible editors. Supports Claude Code, Cursor, GitHub Copilot and ChatGPT Desktop. Includes Simulator Mode that lets developers begin testing integrations directly from their development environment before creating an account. Open source on GitHub. Announced August 4, 2026.

End-to-end encrypted communication channel between coding agents that installs an MCP server and notification hook for Claude Code, Codex or both. It uses a scoped orphan Git branch under claude-link for transport so agents can exchange rooms, presence and messages without touching the working code tree. Public GitHub repository created August 11, 2026.

Pre-release WhatsApp MCP server shipped as a static Go binary with QR setup, local SQLite storage, read/search tools, doctor diagnostics and server-enforced gates for outbound sends. It uses the unofficial WhatsApp Web protocol via whatsmeow, documents number-ban risk clearly, and supports stdio or optional HTTP connection modes for MCP clients. Public GitHub repository created August 17, 2026.

Open-source Cloudflare Workers MCP server for Genesys Cloud administration. It focuses on building and changing contact-center objects such as queues, skills, users, wrap-up codes and Architect flows, including Mermaid previews and Genesys-side validation/publishing through flow jobs. Public GitHub repository created August 17, 2026.

MCP server for target5.net, a public problem board where AI agents can read tasks, register an identity, post work, and verify a hash-chained discussion record. It attaches the board's own rules to every tool, requires authors to disclose unverified claims, and keeps read access credential-free while token-gating writes. Public GitHub repository created August 23, 2026.

WhatsApp MCP server built on Baileys that exposes personal chats, messages, media, contacts and groups to AI agents through stdio or token-protected HTTP. It includes setup helpers for Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, OpenCode and other MCP clients, plus optional agent skills around WhatsApp workflows. Public GitHub repository created August 22, 2026.

Self-hosted read-only mail MCP server that mirrors IMAP accounts into local maildir, indexes them with notmuch, and serves question-oriented mail search over authenticated Streamable HTTP. It is designed for always-on agents and scheduled digests where sending, deleting and moving mail are intentionally unavailable. Public GitHub repository created August 20, 2026.

Draft-only Proton Mail MCP server built on Proton Mail Bridge. It can read and search mail, create drafts with attachments, and requires out-of-band human approval in a local terminal before draft creation; it deliberately cannot send email. Public GitHub repository created August 29, 2026.

TypeScript MCP server for the NodeLoc community with 42 stdio tools covering forum browsing, topics, replies, private messages, likes, bookmarks, polls, nodes, chat, energy rewards, payment APIs, knowledge-base lookup, and miniprogram CLI operations. Public GitHub repository created August 30, 2026.

Local-first MCP server for Smailr mail with 23 tools across mailboxes, messages, attachments, contacts, folders, labels, rules, signatures, quotas, and stats. It supports reading, searching, managing, and sending mail through the Smailr API while keeping the API key local. Public GitHub repository created August 30, 2026.

Official PlanVortex MCP server for social publishing, comment inbox, private messages, analytics, media uploads, organization context, and account capabilities across Facebook, Instagram, LinkedIn, TikTok, X, WhatsApp, YouTube, Google Business, Bluesky, Discord, and Telegram. Public GitHub repository created August 31, 2026.

MCP server for email deliverability data across AWS SES, SendGrid, Mailgun, SparkPost, Postmark, and Mandrill, covering bounces, complaints, suppression lists, delivery stats, campaigns, and provider comparisons. It supports npx stdio configuration and a remote MCP endpoint with OAuth. Public GitHub repository created August 29, 2026.

Local stdio bridge for the hosted Asyntai MCP server, connecting stdio-only MCP clients to Asyntai account tools for website support agents, knowledge management, visitor conversations, leads, and manual live replies. It handles OAuth 2.1 with PKCE and proxies JSON-RPC to the hosted endpoint. Public GitHub repository created September 2, 2026.

Local macOS MCP server for Apple Messages and Contacts, with read-only SQLite access to chat history, local FTS5 indexing, thread and chat inspection, contact-handle resolution, and guarded AppleScript sending that requires an explicit confirmation flag and audit log. Public GitHub repository created September 2, 2026.

Defensive Python wrapper around the upstream mcp-server-linkedin package, pinning fastmcp below 4.0 after the August 31 FastMCP API break while preserving the same LinkedIn profile, company, search, jobs, messaging, connection, and feed tools. It runs over local stdio, opens a separate bundled Chromium login session, and stores that session under the local LinkedIn MCP profile. Public GitHub repository created September 3, 2026.

Local Python MCP server for Reddit search, subreddit browsing, and post details that wraps reddit-no-auth-mcp-server while using Chrome session cookies and curl_cffi Chrome TLS impersonation to avoid Reddit anti-scraping blocks. It requires no Reddit API key or OAuth application and runs as a stdio MCP process. Public GitHub repository created September 3, 2026.

MCP server that gives AI agents an fmsg address for federated messaging through a deployed fmsg Web API. It can send messages, read inboxes, follow threads, react, exchange attachments, and wait for replies, running either as a local stdio server for one address or a shared Streamable HTTP server where each user authenticates with their own fmsg API key. Public GitHub repository created September 3, 2026.

Python MCP server for LinkedIn-oriented workflows, built for Google Antigravity and compatible with Claude Code. It registers globally, exposes diagnostic and LinkedIn automation tools, uses a captured local browser session for search, comments, and connection requests, optionally uses a LinkedIn OAuth token for publishing, and stores job-scraping data in SQLite under ~/.config/linkedin-mcp. Public GitHub repository created September 3, 2026.

Local macOS Gmail MCP server for Claude Code that exposes several Gmail accounts through one stdio service, with one alias and account-selection description per mailbox. It stores OAuth client credentials and tokens in macOS Keychain, supports drafts and forwards with attachments, requires approval for every send path, and ships no Google credentials of its own. Public GitHub repository created September 10, 2026.

Self-hosted remote MCP connector for Telegram Business accounts using the official Telegram Business API instead of an MTProto user session. It archives searchable conversations in SQLite, reads files and voice transcripts, imports older history, supports groups and forum topics, and can optionally reply through an HTTPS Streamable HTTP endpoint protected by a deployment secret. Public GitHub repository created September 6, 2026.

Disposable email CLI and MCP server for humans and AI agents. It can spawn a temporary inbox, wait for verification email, extract OTP codes, list providers, return JSON-friendly results, and delete inboxes server-side and locally when finished, with no signup, ads, browser, or API key required. Public GitHub repository created September 10, 2026.

Local email and PGP MCP server for AI agents. It supports reading, sending, replying, contact management, archiving, and search across Gmail or other IMAP/SMTP providers while keeping private keys, passphrases, ciphertext, and byte-critical material out of the model context window. Public GitHub repository created September 12, 2026.

Official open-source TypeScript MCP server for Meser10, an Israeli email and SMS platform. Tools are generated from the live WSDL, the server is listed in the official MCP registry as io.github.meser10/meser10-mcp, and it starts in read-only mode before optional write, send, or destructive modes are enabled through MESER10_MODE and recipient caps. Public GitHub repository created September 13, 2026.

Self-hosted LAN mailbox MCP server for small teams of AI coding agents. A Node.js hub maps trusted local-network IP addresses to teammate names, stores messages and file attachments in SQLite, and exposes a local stdio bridge so Claude Code, Codex, Cursor, OpenCode, and other MCP clients can send, list, read, mark, and save messages without cloud accounts or tokens. Public GitHub repository created September 21, 2026.

Local stdio MCP server that lets AI coding agents on the same machine leave asynchronous messages for each other as plain Markdown files with YAML frontmatter. It supports send, read, and mark-read tools, configurable mailbox folders, per-agent identities, optional Antigravity wake-up through agentapi, and a local loopback settings UI without cloud services or API keys. Public GitHub repository created September 21, 2026.

Single-binary Go stdio MCP server for the DEV.to and Forem API. Public content reads work without a write credential; writing articles or other account actions requires a personal API key, which can be stored in macOS Keychain or supplied via environment. Repository created September 20, 2026.

Official SMTPing stdio MCP server for verifying individual email addresses or bulk lists, checking threat classifications, and reading credit balance. Verification calls consume credits and send submitted addresses to the SMTPing API. Repository created September 27, 2026.

Hosted Streamable HTTP MCP for authorized social accounts: publish or schedule posts, inspect replies and insights, and moderate comments. OAuth 2.1 connects the agent after accounts are linked in the provider dashboard; social publishing is an external write and requires review. Repository contains setup notes, not the hosted service code. Repository created September 30, 2026.

Community continuation of the Thunderbird MCP add-on and local stdio bridge, exposing mail, compose, filters, calendar and contacts to authorized agents. Requires a matching extension and bridge release, Thunderbird 140+ and Node 22+; not affiliated with Mozilla or the original author. Review all sends and mutations. Repository created September 26, 2026.

Local agent-to-agent threaded mail and advisory file reservations per repository, with MCP tools and a CLI backed by SQLite. Runs on localhost via Streamable HTTP and has no authentication; do not expose its port. Installation currently requires Linux with systemd and Bun. Repository created October 3, 2026.

Self-hosted MCP and REST gateway for agent mailboxes over IMAP/SMTP. Per-agent API keys map to a single mailbox, with sender and recipient allow lists, attachment handling and HTML-to-Markdown conversion. Mail sending is a side effect requiring review. Repository created October 2, 2026.