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Best LLM AI Skills & MCP Servers

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

Opensrc

MCP Registry

MCP server for fetching and querying dependency source code

MCP Registry · ★ 5.0free

Sdk

MCP Registry

Emcy telemetry SDK for MCP servers - track tool invocations, errors, and performance

MCP Registry · ★ 5.0free

Renovate

MCP Registry

MCP server for designing Renovate configurations interactively.

MCP Registry · ★ 5.0free

Server Atlassian Bitbucket

MCP Registry

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

MCP Registry · ★ 5.0free

Guardvibe

MCP Registry

Security MCP for vibe coding. 424 rules, 36 tools, CLI + doctor. Host security, auth coverage mapping, LLM-powered deep scan (IDOR/business logic), taint analysis. 61 CVE rules refreshed daily from GHSA/OSV/CISA KEV — Next.js May 2026 13-advisory cluster,

MCP Registry · ★ 5.0free

Agent

MCP Registry

Tool-using planning agent over MCP servers, built on the Vercel AI SDK.

MCP Registry · ★ 5.0free

Haluguard

MCP Registry

MCP server for haluguard — hallucination detection for LLM apps. Plugs into Claude Code, Cursor, ChatGPT Desktop and any MCP-compatible host.

MCP Registry · ★ 5.0free

Kingdee K3Cloud Dev

MCP Registry

金蝶云星空企业版开发服务

MCP Registry · ★ 5.0free

Korean Law

MCP Registry

법제처 42개 API → 17개 MCP 도구. 법령·판례·조례·조약 + LLM 환각 방지 인용 검증 + 조문 영향 그래프(impact_map) + 시점 비교(time_travel) + 상황별 5단계 안내(action_plan) + 국세청 해석례(nts)

MCP Registry · ★ 5.0free

Hermit Agent

MCP Registry

MCP executor for Claude Code or Codex with an npm-first launcher and cheaper local or flat-rate execution by default

MCP Registry · ★ 5.0free

Opalserve

MCP Registry

The control plane for your team's AI tools — share MCP servers, knowledge bases, and usage analytics across your engineering team

MCP Registry · ★ 5.0free

Superlocalmemory

MCP Registry

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.

MCP Registry · ★ 5.0free

Yahoo Finance

MCP Registry

A Yahoo Finance MCP server for LLMs.

MCP Registry · ★ 5.0free

Vir Cli

MCP Registry

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

MCP Registry · ★ 5.0free

Tmux

MCP Registry

Model Context Protocol server that lets LLMs collaboratively drive tmux

MCP Registry · ★ 5.0free

Apiclaw

MCP Registry

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

MCP Registry · ★ 5.0free

Preste

MCP Registry

Preste — sovereign agentic CLI with OODA/ReAct/Plan patterns, local MCP server for Claude Code/Desktop integration, and Ed25519 auto-attestation on every run. BYOK, standalone, no infra.

MCP Registry · ★ 5.0free

Server Sec Filings

MCP Registry

SEC EDGAR financial intelligence with XBRL data, filing search, and insider trades for 8000+ companies

MCP Registry · ★ 5.0free

Docs To

MCP Registry

MCP server that exposes documentation search tools for AI assistants

MCP Registry · ★ 5.0free

Server Atlassian Jira

MCP Registry

Node.js/TypeScript MCP server for Atlassian Jira. Equips AI systems (LLMs) with tools to list/get projects, search/get issues (using JQL/ID), and view dev info (commits, PRs). Connects AI capabilities directly into Jira project management and issue tracki

MCP Registry · ★ 5.0free

Jazz Ai

MCP Registry

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

MCP Registry · ★ 5.0free

Calculator

MCP Registry

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

MCP Registry · ★ 5.0free

Server

MCP Registry

MIND MCP Server — 28 tools. The most complete AI memory layer with the Focus → Project → Outcome → Task hierarchy (mind_focuses + extended mind_life with item_type/parent_id/focus_id and cross-account project sharing via share/list_shares/revoke_share), d

MCP Registry · ★ 5.0free

Fred

MCP Registry

A FRED economic data MCP server for LLMs.

MCP Registry · ★ 5.0free

About LLM skills on iClaude

iClaude is the universal install layer for AI skills. Every LLM 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.