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Best Lc AI Skills & MCP Servers

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

Multi Cloud Docs Search

MCP Registry

MCP Server for multi-cloud provider documentation search — search and retrieve official cloud vendor docs directly in AI coding assistants

MCP Registry · ★ 5.0free

Vulcan File Ops

MCP Registry

MCP server for AI assistants: read, write, edit, and manage files securely on local filesystem.

MCP Registry · ★ 5.0free

Calculator

MCP Registry

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

MCP Registry · ★ 5.0free

Time

MCP Registry

A mcp server providing standardized tools to perform time and date-related operations

MCP Registry · ★ 5.0free

Mailchimp

MCP Registry

Draft, test, and send Mailchimp campaigns straight from your MCP client — with audience management, subscriber CRUD, and post-send analytics behind safe-by-default send gates. STDIO or Streamable HTTP.

MCP Registry · ★ 5.0free

Mathjs

MCP Registry

An MCP server for parsing and calculating mathematical expressions using mathjs

MCP Registry · ★ 5.0free

L402 Gate

MCP Registry

L402 Lightning paywall + Depth-of-Identity score gate for MCP. Two integration shapes: (a) stdio MCP server exposing l402_gate_challenge / l402_gate_verify / l402_gate_score for agent clients; (b) drop-in Express middleware + MCP tool factory that combine

MCP Registry · ★ 5.0free

Mcp

MCP Registry

WAIaaS MCP server - Model Context Protocol integration for AI agents

MCP Registry · ★ 5.0free

Captcha

MCP Registry

Replace MCP 429 errors with PoW challenges or Lightning micropayments. Drop-in rate control for MCP servers — no accounts, free fallback, self-hosted. Three tools: challenge, verify, status. Stdio + HTTP transports, stdlib only.

MCP Registry · ★ 5.0free

Raindrop

MCP Registry

MCP Server for Raindrop.io bookmark management

MCP Registry · ★ 5.0free

Ntfy Me

MCP Registry

An ntfy MCP server for sending ntfy notifications to your self-hosted ntfy server from AI Agents 📤 (supports secure token auth & more - use with npx or docker!)

MCP Registry · ★ 5.0free

Server Weather

MCP Registry

MCP server for weather forecast and severe weather alerts in the US

MCP Registry · ★ 5.0free

Toolcairn

MCP Registry

Agent-first MCP server: AI coding agents find, compare, verify, and stack-build the right open-source tools across 35+ registries (npm, PyPI, Cargo, Maven, Go, RubyGems, NuGet, Hex, Composer, and more). Graph-aware ranking + version-aware compatibility in

MCP Registry · ★ 5.0free

Zendesk

MCP Registry

Model Context Protocol (MCP) server for the Zendesk Support & Help Center APIs — per-user OAuth 2.1 PKCE authentication, read-only mode, and token-efficient section-based article editing.

MCP Registry · ★ 5.0free

Wcli0

MCP Registry

Enhanced MCP server for Windows CLI interactions with advanced configuration and security features

MCP Registry · ★ 5.0free

Toolception

MCP Registry

Dynamic MCP server toolkit for runtime toolset management with Fastify transport and meta-tools

MCP Registry · ★ 5.0free

Mg Claude Dev Kit

MCP Registry

Scaffold for legible, reviewable AI-assisted development

MCP Registry · ★ 5.0free

Vulcn

MCP Registry

Security evals for the AI era. Probes · Targets · Graders · Proof. Confirmed XSS / SQLi / BOLA / prompt-injection / MCP-RCE with reproducible proof attached to every finding.

MCP Registry · ★ 5.0free

Codex Tool

MCP Registry

MCP server for Codex CLI integration

MCP Registry · ★ 5.0free

Imessage

MCP Registry

iMessage MCP server — 25 tools for searching, analyzing, and exploring your entire iMessage history on macOS

MCP Registry · ★ 5.0free

Ellmos Controlcenter

MCP Registry

An MCP control plane server for local MCP stack discovery, profile inspection, and profile recommendation

MCP Registry · ★ 5.0free

Ask Codex

MCP Registry

MCP server for OpenAI Codex CLI integration - for Claude IDE and other IDEs

MCP Registry · ★ 5.0free

Help Scout

MCP Registry

Search Help Scout conversations, customers, organizations, threads, and inboxes with AI assistants

MCP Registry · ★ 5.0free

Pdfnative

MCP Registry

Model Context Protocol (MCP) server bridging the zero-dependency pdfnative v1.2 library — generate PDFs (PDF/A-1b/2b/2u/3b), embed barcodes & QR codes, sign and **verify** PAdES documents (RSA / ECDSA P-256 CMS), render 18 scripts including emoji, build s

MCP Registry · ★ 5.0free

About Lc skills on iClaude

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