Best LLM AI Skills & MCP Servers

Local-first, LLM-agnostic memory layer for AI assistants. Run via npx @psraghuveer/memento.

Create autonomous AI agents that actually execute tasks—read emails, manage git, run commands, search the web, and orchestrate workflows through natural conversation

The MCP server that makes LLMs reliable on real-world Excel spreadsheets. Thin npm client over a hosted API — read, write, diff, redact, and supervise .xlsx files from any MCP-aware agent.

Lossless, project-scoped memory for AI coding tools. Durable context across sessions with 56 MCP tools, FTS5 search, conductor orchestrator, loop/watch monitoring, snapshot capture, pre-flight overlap checks, Claude/Codex/OpenCode wrappers, Linear sync, a

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

Gmail MCP server — scope-gated tools + attachment/download path jails + supply-chain hardening. Fork of GongRzhe/Gmail-MCP-Server via ArtyMcLabin's intermediate fork.

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

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

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

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.

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

NestJS MCP Server - Build Model Context Protocol servers with NestJS

MCP server for Decantr — exposes Contract context, typed graph artifacts, and verification evidence to AI coding assistants

Information-geometric agent memory with mathematical guarantees. 4-channel retrieval, Fisher-Rao similarity, zero-LLM mode, EU AI Act compliant. Works with Claude, Cursor, Windsurf, and 17+ AI tools.

An MCP (Model Context Protocol) server enabling LLMs and AI agents to interact with Git repositories. Provides tools for comprehensive Git operations including clone, commit, branch, diff, log, status, push, pull, merge, rebase, worktree, tag management,

Evaluate, simplify, and differentiate mathematical expressions via MCP. STDIO or Streamable HTTP.

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

MCP server providing financial market data from finmap.org

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

A Hacker News MCP server for LLMs.

GESF MCP Server - AI Compliance Assistant for GDPR, OWASP, NIST, CIS. Check compliance, generate policies, assess risks via MCP protocol.

MCP server + live dashboard for AI code governance — OWASP LLM Top 10 (10/10), real-time MCP App UI, 25+ security patterns, Bayesian learning Brain, hallucinated import detection, multi-agent governance. Works with Claude, Cursor, VS Code, ChatGPT, Goose,

Unified MCP server for multi-LLM consultation — registers tools from all available providers (Gemini, Codex, Ollama) behind runtime availability checks

Transloadit MCP server