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Best Universal AI Skills & MCP Servers

32 curated Universal skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.

Mcp

MCP Registry

Universal MCP server for Hex Core — runs on Claude Code, Cursor, Continue, Gemini CLI, ChatGPT Desktop, and Zed. 13 tools over the component registry. Thin transport shell — pure-function builders live in @hex-core/payload.

MCP Registry · ★ 5.0free

Avito

MCP Registry

Universal MCP server for the Avito API — 145 tools across 18 domains, safe-by-default with dry-run, idempotency, structured errors, MCP resources/prompts and cross-process token lock. Install via npx, plug into any MCP-compatible client.

MCP Registry · ★ 5.0free

Ucm

MCP Registry

Universal Context Manager MCP Server - AI Productivity Platform

MCP Registry · ★ 5.0free

Todos

MCP Registry

Universal task management for AI coding agents - CLI + MCP server + interactive TUI

MCP Registry · ★ 5.0free

Lsp

MCP Registry

Universal LSP MCP server

MCP Registry · ★ 5.0free

Ucm

MCP Registry

Universal Context Manager MCP Server - AI Productivity Platform

MCP Registry · ★ 5.0free

AI Skill Store

Smithery

Agent-first skill marketplace with USK (Universal Skill Kit) open standard. Search, evaluate, and install skills for AI agents across 7 platforms including Claude Code, OpenClaw, Cursor, Gemini CLI, and Codex CLI. Agents discover skills via API with trust-level filtering (verifie

Smitheryfree

UCP Checker

Smithery

A universal commerce gateway for AI agents to interact with UCP-enabled stores. Enables live product discovery, real-time catalog search, and checkout generation across verified Shopify stores (e.g., Allbirds, Gymshark). Use this to find products, verify merchant capabilities, an

Smitheryfree

About Universal skills on iClaude

iClaude is the universal install layer for AI skills. Every Universal skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.