MCP servers.

Connect a server the community built.

An MCP server is a program somebody else built that gives your AI new tools: search a service, read a file, call an API.

Connect one here and Claude, Claude Code, ChatGPT, Codex and Cursor all reach it through a single endpoint, with your key held on the server side.

Category: Communication

252 results · page 1 of 9

  • mcp-serverMCP serverCommunication

    Phone numbers for AI agents: order a private number, read the SMS verification code, hand it back.

    ★ 555

    github.com/sv-number/mcp-server

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  • hqbaseMCP serverCommunication

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

    ★ 322

    github.com/hqbase/hqbase

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  • mcpMCP serverCommunication

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

    ★ 264

    github.com/atomic-mail/atomic-mail-agentic

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  • parse-dmarcMCP serverCommunication

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

    ★ 200

    github.com/meysam81/parse-dmarc

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  • google-workspaceMCP serverCommunication

    Give AI agents access to Gmail, Calendar, Drive, and more — multi-account, manifest-driven

    ★ 177

    github.com/aaronsb/google-workspace-mcp

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  • agentphoneMCP serverCommunication

    Give AI agents real phone numbers, messages, and voice calls via MCP.

    Ready to connect★ 121

    github.com/agentphone-ai/agentphone-mcp

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  • email-mcpMCP serverCommunication

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

    ★ 108

    github.com/codefuturist/email-mcp

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  • threadline-mcpMCP serverCommunication

    Agent-to-agent messaging relay. Discover agents, send messages, and receive replies. Zero-config.

    ★ 79

    github.com/sagemindai/instar

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  • join.cloudMCP serverCommunication

    Collaboration rooms for AI agents. Real-time messaging + standard git.

    ★ 63

    github.com/kushneryk/join.cloud

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  • airtableMCP serverCommunication

    Ultimate toolbox to connect your LLM to popular productivity tools such as Monday, AirTable, Slack

    Ready to connect★ 62

    github.com/waystation-ai/mcp

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  • slack-explorer-mcpMCP serverCommunication

    MCP server specialized in retrieving information from Slack messages and threads

    ★ 50

    github.com/shibayu36/slack-explorer-mcp

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  • fast-mcp-telegramMCP serverCommunication

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

    Ready to connect

    github.com/leshchenko1979/fast-mcp-telegram

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  • voidmob-mcpMCP serverCommunication

    Mobile proxies, non-VoIP SMS verifications, dedicated numbers, and global eSIMs for AI agents.

    github.com/voidmobcom/voidmob-mcp

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  • thunderbird-cliMCP serverCommunication

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

    github.com/vitalio-sh/thunderbird-cli

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  • outlook-assistantMCP serverCommunication

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

    github.com/littlebearapps/outlook-assistant

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  • outlook-mcpMCP serverCommunication

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

    github.com/littlebearapps/outlook-mcp

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  • smailsMCP serverCommunication

    Free disposable email for AI agents: a throwaway inbox to read verification codes over MCP.

    github.com/pexni/smails

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  • apiMCP serverCommunication

    55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.

    Ready to connect

    github.com/upinar/contrastapi

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  • hyadesMCP serverCommunication

    Render LaTeX math as pure Unicode text art for terminals, code comments, and emails.

    Ready to connect

    github.com/apology-is-policy/hyades

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  • hail-mcpMCP serverCommunication

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

    Ready to connect

    github.com/hail-hq/hail

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  • mcp-notifyMCP serverCommunication

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

    github.com/aahl/mcp-notify

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  • jcas-mcpMCP serverCommunication

    Control macOS apps via AppleScript/JXA: sanitized commands for Messages, Mail, Finder, and more.

    github.com/johnnyclem/jcapplescript

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  • imessage-mcpMCP serverCommunication

    Read-only MCP for iMessage, SMS, MMS, and RCS history already present in Apple Messages on Mac.

    github.com/anipotts/imessage-mcp

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  • justcall-mcp-serverMCP serverCommunication

    JustCall MCP Server enables LLMs and AI agents to make voice calls and send SMS via JustCall APIs.

    Ready to connect

    github.com/saaslabsco/justcall-mcp-server

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  • ethereum-wallet-mcpMCP serverCommunication

    Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery

    github.com/nirholas/ethereum-wallet-toolkit

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  • mcp-whatsapp-webMCP serverCommunication

    WhatsApp MCP via web.js or browserless Baileys: messages, media, chats, groups and contacts

    github.com/mario-andreschak/mcp-whatsapp-web

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  • ntfy-mcp-serverMCP serverCommunication

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

    github.com/cyanheads/ntfy-mcp-server

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  • intercomMCP serverCommunication

    Relays messages between two Claude Code sessions on different machines using the Channels API

    github.com/muhammadtalhamt/claude-intercom

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  • elisymMCP serverCommunication

    AI agent discovery, marketplace, messaging, and payments on Nostr - no platform, no middleman

    github.com/elisymlabs/elisym

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  • webhook-mcp-serverMCP serverCommunication

    Capture HTTP, email, and DNS callbacks with webhook.site from MCP clients.

    github.com/zebbern/webhook-mcp-server

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What is an MCP server?

The Model Context Protocol is the open standard AI clients use to call tools. An MCP server is a program that answers those calls: it publishes a few tools with their inputs, and the AI decides when to use them. Most are written by the people who needed them and published as open source, which is why this list is long and uneven.

7,923 of the 11,204 servers listed here can be served through ahel today. The rest stay listed so you can find them and read what they do, and their pages say plainly that ahel cannot serve them yet.

Connect one to Claude, Cursor, Codex or ChatGPT

Connecting a server here does not put anything on your machine. ahel runs it and serves its tools to every AI client you sign in with, so one connection covers Claude, Claude Code, ChatGPT, Codex, Cursor and VS Code with Copilot.

Your client's tool list stays the same size whatever you connect: a server's own tools are read with the tools verb and run with the use verb. Keys are sealed in ahel and injected server side, so a credential never crosses the link.

See how to connect your AI