Best LLM AI Skills & MCP Servers

Transloadit MCP server

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.

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

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.

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

A Model Context Protocol server for MongoDB connections

Your terminal. Your agent. Your rules.

Native TypeScript AI memory system and MCP server (Zero-LLM, LanceDB)

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.

Multi-language code graph memory system for LLMs

LLM-optimized Figma MCP server.

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

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 server for Strava API

MCP server for Ollama - exposes all Ollama SDK functionality through MCP tools

An LLM Wiki for Claude Code, in your Obsidian vault.

An open-source MCP server for Answer Engine Optimization (AEO) monitoring.

Persistent memory for AI coding assistants. Injects context from past sessions into every LLM request.

One-line Oz MCP setup for coding agents.

The Control Plane for AI Agents. 26,701 discoverable APIs, 2,906 callable, 49 fully managed. Agent-native auth: `apiclaw auth login` opens your browser, one-tap sign-in, writes ~/.apiclaw.toml. Four doors: local MCP, CLI, HTTP gateway, Remote MCP. One aut

Node.js/TypeScript MCP server for Atlassian Bitbucket. Enables AI systems (LLMs) to interact with workspaces, repositories, and pull requests via tools (list, get, comment, search). Connects AI directly to version control workflows through the standard MC

Model Context Protocol server that lets LLMs collaboratively drive tmux

Scaffold a personal LLM wiki (Karpathy pattern). MCP-ready, multi-agent, publishable. Zero-prompt install for IM agents (OpenClaw, Hermes, Codex, Claude Code).