Google PageRank for AI agents. 25,000+ tools indexed.

Best MCP Servers for Communication in 2026

405 tools indexed · avg score 90.4 · sorted by AgentRank score

The AgentRank index tracks 405 communication tools. The top-ranked entry is ag2ai/ag2 at 97.3 points. Across the 10 shown here, the average AgentRank score is 90.4, and 10 had a commit in the last 30 days. The most common primary language is TypeScript.

Communication MCP servers give AI agents the ability to send messages, notifications, and emails through popular platforms. These tools close the loop on automated workflows — when an agent finishes a task, it can notify stakeholders via Slack, post a Discord update, send an email, or trigger a webhook.

Coverage includes workspace messaging (Slack, Discord, Teams), email providers (SendGrid, Mailgun, SMTP), SMS/voice (Twilio), and generic webhook endpoints. Most communication MCP servers support both sending and reading — giving agents the ability to monitor incoming messages and respond to triggers.

The most important quality factor for communication tools is reliability at scale. A tool that works fine for one message but fails under load, rate-limits silently, or drops messages without errors is worse than useless in production. Check the issue tracker for reports of silent failures before committing to a tool.

Top 10 Communication MCP Servers

  1. #1
    ag2ai/ag2

    AG2 (formerly AutoGen): The Open-Source AgentOS.Join us at: https://discord.gg/sNGSwQME3x

    97.3
    Ranks here on adopted by 969 downstream projects and 5.0k GitHub stars, plus an active commit 8 days ago.
    Dependents
    22.0
    Freshness
    19.8
    Issue health
    18.6
    Downloads
    13.0
    Stars
    10.0
    ★ 5.0k commit 7d ago Python 969 dependents
  2. #2
    Lifecycle-Innovations-Limited/claude-ops

    Business operating system for Claude Code — 57 skills, 21 agents, smart daemon. Unified inbox (WhatsApp/Email/Slack/Telegram), autonomous PR merge, full-AWS monitoring, revenue (Stripe+RevenueCat),...

    92.4
    Ranks here on 543 GitHub stars and an active commit 8 days ago, plus 82% of issues closed.
    Freshness
    30.3
    Issue health
    25.3
    Stars
    14.0
    Contributors
    11.5
    Description
    6.2
    ★ 543 commit 8d ago Shell
  3. #3
    kagent-dev/kagent

    Cloud Native Agentic AI | Discord: https://bit.ly/kagentdiscord

    91.9
    Ranks here on 4.0k GitHub stars and a commit within the last week, plus 80% of issues closed.
    Freshness
    30.6
    Issue health
    24.5
    Stars
    15.4
    Contributors
    12.3
    License
    4.6
    ★ 4.0k commit 7d ago Go
  4. #4
    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.

    91.4
    Ranks here on 355 GitHub stars and a commit within the last week, plus 93% of issues closed.
    Freshness
    25.5
    Issue health
    23.8
    Downloads
    13.5
    Stars
    10.9
    Contributors
    10.3
    ★ 355 commit 7d ago Python
  5. #5
    smixs/iva-agent

    AI assistant in Telegram that remembers everything and helps you run your life. Self-hosted in one command.

    90.9
    Ranks here on 237 GitHub stars and a commit within the last week, plus 90% of issues closed.
    Freshness
    30.7
    Issue health
    27.8
    Stars
    12.2
    Contributors
    11.2
    License
    4.6
    ★ 237 commit 7d ago TypeScript
  6. #6
    nikolausm/imap-mcp-server

    Full-featured IMAP & SMTP email for AI assistants: search, read, send, organize and clean up multiple mailboxes, with AES-256-encrypted credentials. Works with Claude, Cursor and any MCP client.

    89.7
    Ranks here on an active commit 8 days ago and 83% of issues closed.
    Freshness
    30.4
    Issue health
    25.6
    Contributors
    12.1
    Stars
    10.4
    Description
    6.2
    ★ 107 commit 8d ago TypeScript
  7. #7
    ErisPulse/ErisPulse

    Event-driven multi-platform bot framework with Dashboard, Docker, hot-reload & module marketplace | 事件驱动的多平台机器人框架 — 一次编写部署 QQ/Telegram/Kook/云湖/Matrix/邮件等 15+ 平台

    89.7
    Ranks here on an active commit 9 days ago and 100% of issues closed.
    Issue health
    25.6
    Freshness
    25.0
    Downloads
    12.5
    Contributors
    9.3
    Stars
    7.5
    ★ 57 commit 8d ago Python
  8. #8
    lemonade-sdk/lemonade

    Lemonade helps users discover and run local AI apps by serving optimized LLMs right from their own GPUs and NPUs. Join our discord: https://discord.gg/5xXzkMu8Zk

    89.2
    Ranks here on 5.9k GitHub stars and a commit within the last week.
    Freshness
    30.7
    Issue health
    20.0
    Stars
    15.4
    Contributors
    12.3
    Description
    6.2
    ★ 5.9k commit 7d ago C++
  9. #9
    n24q02m/email

    IMAP/SMTP email for AI agents -- read, send, organize folders, and manage attachments across multiple accounts, with auto-discovery.

    86.3
    Ranks here on an active commit 9 days ago and 99% of issues closed.
    Issue health
    30.4
    Freshness
    30.1
    Contributors
    8.4
    Stars
    7.9
    License
    4.6
    ★ 33 commit 8d ago TypeScript
  10. #10
    Oolab-labs/patchwork-os

    The decision layer for personal AI. Local-first runtime where agents automate across GitHub, Slack, Gmail & 45+ services — but every risky action can stop for your yes, workers (agents) earn autono...

    85.5
    Ranks here on a commit within the last week and 97% of issues closed.
    Freshness
    30.7
    Issue health
    29.7
    Stars
    7.7
    Contributors
    6.5
    Description
    6.2
    ★ 31 commit 7d ago TypeScript

More Communication MCP Servers

# Tool Score Stars Last Commit Language
11 yunfeizhu/mcp-mail-server 85.1 52 23d ago TypeScript
12 basicmachines-co/basic-memory 84.7 4.2k 7d ago Python
13 leeguooooo/mail-use 83.8 43 15d ago JavaScript
14 pipeshub-ai/pipeshub-ai 83.7 3.8k 7d ago Python
15 AtomicBot-ai/Atomic-Chat 83.5 1.8k 7d ago TypeScript
16 ominiverdi/opencode-chat-bridge 82.7 110 1mo ago TypeScript
17 dominikamann/agent-mail-gateway 82.3 11 8d ago TypeScript
18 xrgarcia/slashbin-ai-team 81.0 13 7d ago JavaScript
19 agenticmail/agenticmail 80.9 236 19d ago TypeScript
20 Bredrumb/TomoriBot 80.4 53 7d ago TypeScript
21 curie-eng/curie 80.0 36 7d ago Python
22 Opendray/opendray 79.8 67 7d ago Dart
23 n24q02m/claude-plugins 79.5 4 8d ago Python
24 ukbodypilot/radio-gateway 78.6 11 7d ago Python
25 axelfreeman/tapac-mcp 78.6 3 18d ago JavaScript
26 ongridio/ongrid 78.2 1.1k 8d ago Go
27 kagent-dev/website 77.3 21 7d ago TypeScript
28 psyb0t/docker-mailbox 76.8 4 9d ago Python
29 thefalconry/talon 76.5 79 7d ago TypeScript
30 weellio/gander 76.5 10 8d ago JavaScript
31 sabbah13/cowork-tasks 74.7 11 9d ago JavaScript
32 Raven-Scout/Scout 74.6 20 7d ago Python
33 unchase/antigravity-storage-manager 74.4 110 1mo ago TypeScript
34 colibird-ai/local-mcp-releases 71.4 70 10d ago JavaScript
35 norrietaylor/distillery 70.7 25 7d ago Python
36 tecnologicachile/mail-mcp 70.3 99 7d ago Rust
37 publora/skills 69.9 52 7d ago Python
38 ndesv21/socialclaw 69.9 96 7d ago JavaScript
39 resend/resend-mcp 69.7 576 7d ago TypeScript
40 brekkylab/backlot 69.1 292 7d ago Python
41 nishantmodak/call-a-human-mcp 68.8 15 1mo ago Python
42 JKHeadley/instar 68.6 83 7d ago TypeScript
43 s-morgan-jeffries/apple-mail-fast-mcp 68.6 105 1mo ago Python
44 Olib-AI/mailcue 67.0 24 8d ago Python
45 Sealjay/mcp-hey 66.5 13 28d ago TypeScript
46 sosoj92/jarvis-assistant-vocal 64.5 460 12d ago Python
47 belaytzev/Telebrief 64.2 22 15d ago Python
48 superdesigndev/treg 64.1 5.2k 7d ago Python
49 sendsoon/mcp 63.2 6 8d ago TypeScript
50 monid-ai/monid 62.9 3.8k 10d ago TypeScript