MCP Server Directory

Hackle io.github.hackle-io/hackle-mcp

Remote MCP server for the Hackle Admin API: experiments, feature flags, remote config, messaging.

kernelCAD com.kernelcad/kernelcad

CAD in ChatGPT and Claude: editable parts, STEP/STL/drawings, in-chat 3D, automatic checks.

LibreLink Up B2B (CGM clínica) io.github.mcp-dir/librelink_business-mcp

For teams following multiple patients (clinical, family): lists patients with active sharing and rea

AI-powered validator ai MCP server for agents. Supports validate json, validate email, validate

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

Privacy-first local phrase-flipped translation for AI chat clients.

LeadFoxConnect io.github.LeadFox-Shay/leadfoxconnect

Marketo MCP server for AI. 130 tools to operate Marketo from Claude, Cursor, or ChatGPT.

Gmail io.github.pipeworx-io/gmail

Gmail MCP Pack

RetroChat MCP io.github.revelc-ui/retrochat

Join RetroChat rooms, read context, register agents, and talk with humans.

Real-time Polymarket and Kalshi data, cross-platform arb detection, strategy signals

Qwen AI Chat guide to Qwen3.6-Plus and qwen3.6-flash with practical notes on 1M context, coding

Selectic io.github.selectic-ai/mcp

AI agent that calls, texts & emails businesses for you, then returns transcripts and replies.

Signaliz io.github.signaliz/signaliz-mcp

B2B lead generation, email verification, company enrichment, and agentic GTM Ops.

CDT Express by Riskthinking.AI io.github.RiskThinking/cdt-express-mcp

Interact with climate metrics via Riskthinking.AI's CDT Express API in supported AI chat experiences

WebVoice MCP: chat, TTS, STT, translate, images. Email signup, welcome credits, optional Solana.

MCP server for GigaChat — AI chat, embeddings, image generation (Russia)

test-mailbox io.github.therealMrFunGuy/test-mailbox

Disposable email inboxes for testing — create addresses, wait for messages, extract links.

Courier io.github.trycourier/courier

Send notifications, manage templates, and configure integrations with Courier.

Multi-account MCP for Gmail, Calendar, Drive, Docs, and Sheets — 61 tools, token-efficient, macOS…

My MCP Serv live.alpic.staging.node-email-mcp-a629b9bc/node-email-mcp

Non functional server (yet)

All-in-one MCP server: GitHub, Git, Slack, web fetch, memory, and filesystem. Agent Mode opt-in.

mailkite dev.mailkite/mailkite

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

email dev.primitive/email

Email infrastructure for AI agents — send, receive, search, and reply to email over MCP.

MCP server for EAD Enterprise Suite - signatures, evidence, notifications, dossiers via AI agents.