Best Al AI Skills & MCP Servers

Antigravity-CLI Plugin. 309 community agent skills aggregated from 13 popular open-source repositories, one-command install.

MCP Server to explore local and remote documentation

Advanced MCP server for Excalidraw with real-time canvas, WebSocket sync, and comprehensive diagram management

A proxy tool that converts normal MCP servers to use lazy-loading pattern with three/four meta-tools

MCP control plane for local cognitive labor — job-shaped tools with tiered Ollama models (instant/workhorse/deep/embed), server-enforced guardrails, and measured economics so Claude can delegate bulk work without losing control.

Model Context Protocol server for EmailVerify.io. Provides email validation, bulk validation, and email finder capabilities.

n8n community node: Real MCP Server Trigger (Streamable HTTP) with Auth0 Bearer token validation

DollhouseMCP - A Model Context Protocol (MCP) server that enables dynamic AI persona management from markdown files, allowing Claude and other compatible AI assistants to activate and switch between different behavioral personas.

MCP server for OpenAlex API - enabling literature review and research landscaping

Security scanner MCP server for AI coding agents. Prompt injection firewall, package hallucination detection (4.3M+ packages), 1700+ vulnerability rules with AST & taint analysis, LLM-powered semantic code review, auto-fix. For Claude Code, Cursor, Windsu

MCP server that builds code graphs to provide rich context to LLMs

Search NOAA CDO stations and datasets, fetch historical weather observations via MCP. STDIO or Streamable HTTP.

Multi-model AI code review server using OpenRouter - get diverse perspectives from multiple LLMs in parallel

Search and query CDC public health data — mortality, vaccinations, surveillance, behavioral risk (Socrata SODA API) via MCP. STDIO or Streamable HTTP.

Tuning Engines CLI, MCP server, and Python agent runtime adapters for governed model, agent, skill, and MCP workflows. Fine-tune open-source LLMs, run inference, manage datasets/evaluations, and connect LangGraph or Temporal while Tuning Engines handles p

AI-powered Adaptive Card generator — MCP server + npm library. 9 tools: generate, validate, optimize, template, transform cards for Teams, Outlook, Copilot. Designer preview included.

CSP AI Agent MCP Server - Centralized AI tools distribution and management

MCP server that exposes Google Workspace CLI (gws) as Model Context Protocol tools

Local-first MCP server that gives AI coding agents a living, browser-viewable project wiki and a project-local memory store, so the agent stays oriented and the human stays in control.

Access U.S. congressional data - bills, votes, members, committees - through MCP. STDIO & Streamable HTTP.

Code intelligence toolkit for AI agents — extract functions, trace call chains, find callers, detect dead code without reading entire files. Works as MCP server, CLI, or agent skill. Supports JS/TS, Python, Go, Rust, Java.

MCP server for Angel One SmartAPI — trade stocks, track portfolio, analyze markets & manage orders via LLM clients like Claude, Cursor & Copilot

Clean context before AI sees it — BlankLogic Refinery MCP for Cursor and Claude Code (local, no upload).

MCP server that detects cross-signal correlations in project health — the thing no individual check can tell you.