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Best Ar AI Skills & MCP Servers

1,564 curated Ar skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.

arxiv-mcp-server

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Search arXiv, fetch paper metadata, and read full-text content via MCP.

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aTars MCP by aarna

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aTars MCP by aarna provides AI agents with structured access to crypto market signals, technical indicators, and sentiment analysis. The server exposes 18 tools across technical and sentiment categories, enabling agents to query market intelligence directly through MCP-compatibl

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OneSignal

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OneSignal is a customer engagement platform that lets you send targeted push notifications, emails, SMS, and in-app messages, manage audiences, and track campaign performance. With the OneSignal MCP, manage your messaging directly from your AI assistant. Send push notifications,

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Notion

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Search across your Notion workspace and connected sources to quickly find pages, databases, and users. View full page and database details for deeper context. Create and update pages, manage databases, move or duplicate content, and add comments to keep work organized.

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Chessagine

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Analyze chess positions using powerful engines like Stockfish, Leela, and Maia. Retrieve games, puzzles, and opening statistics directly from Lichess and specialized databases. Visualize moves and games through interactive board renders and PGN viewers.

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Linear

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Manage issues, projects, cycles, and docs in Linear from one place. Create, update, and comment on issues; organize labels, statuses, and teams; and search docs and documentation. Stay on top of your work by listing assignments, projects, and upcoming cycles.

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Google Calendar

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Schedule events, check availability, and manage calendars. Create meetings, set reminders, and coordinate across time zones.

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Microsoft Learn MCP

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The Microsoft Learn MCP Server is a remote MCP Server that enables clients like GitHub Copilot and other AI agents to bring trusted and up-to-date information directly from Microsoft's official documentation. It supports streamable http transport, which is lightweight for clients

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Slack

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Slack is a channel-based messaging platform. With Slack, people can work together more effectively, connect all their software tools and services, and find the information they need to do their best work — all within a secure, enterprise-grade environment.

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Instagram

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Instagram is a social media platform for sharing photos, videos, and stories. Only supports Instagram Business and Creator accounts, not Instagram Personal accounts.

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Cloud101 Korea

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키워드 기반으로 한국어 IT/클라우드 뉴스, 기술 블로그 포스팅 및 국내외 세미나·웨비나·컨퍼런스 일정을 수집하여 제공합니다. 한국어 사용자 및 한국 기술 시장에 관심 있는 이용자들을 위한 curated 업데이트 허브입니다. 리서치, 기사 작성, 이벤트 기획 등에 유용합니다. Discover relevant tech blog posts, IT/cloud news, and upcoming meetups, webinars, and conferences by keyword. Stay current wi

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Tweet Search

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Search Twitter using advanced operators to find relevant tweets, media, and links. Filter by users, hashtags, dates, sentiment, and more, then paginate through results to explore deeper. Discover timely conversations and gather insights fast.

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SpecLock - AI Constraint Engine

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AI Constraint Engine with AI Patch Firewall. 42 MCP tools. Patch Gateway (ALLOW/WARN/BLOCK verdicts), diff-native review (10 scored signals, hard escalation rules), Spec Compiler, Code Graph, Typed constraints, Python SDK, ROS2. Works with Claude Code, Cursor, Windsurf, Cline, Bo

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AgentPact

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Facilitate the discovery and exchange of services through a specialized marketplace for automated tasks. Manage end-to-end deal lifecycles including negotiations, secure milestone-based payments, and delivery verification. Build trust within the ecosystem through a transparent re

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Anime & Manga Library

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Discover anime and manga titles through keyword searches to find your next favorite series. Access detailed character biographies and browse seasonal airings to stay updated on the latest releases. Explore cultural terms and tropes to deepen your understanding of Japanese media.

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WebSim Explorer

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Discover WebSim projects, creators, and trending content with powerful search and filters. Inspect project details, screenshots, comments, and engagement stats to guide research and curation. Track user profiles and activity to surface influential creators and relevant assets.

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Reddit

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Reddit is a social news platform with user-driven communities (subreddits), offering content sharing, discussions, and viral marketing opportunities for brands

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Woogoro Roofing Quote Analyzer

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Paste any roofing contractor quote into Claude/Cursor/ChatGPT and Woogoro Roofing MCP audits it: - Detects scope gaps (tear-off, underlayment, ice shield, flashing, ridge vent, decking change-order risk) - Compares prices to state-adjusted per-square benchmarks using Woogoro's f

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ShipSwift

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Provides access to a library of iOS development recipes, including SwiftUI code, animations, and infrastructure components. Simplifies the implementation of complex features like authentication, paywalls, and onboarding flows. Enables developers to build high-quality mobile appli

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barbell-tools

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**CoachSync MCP** provides barbell strength training tools for AI assistants. Built for coaches, lifters, and fitness apps that want to add structured programming to their AI workflows. No API key required — connect and start using. ## Tools ### Warmup Calculator Generate a St

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Cloudflare Docs

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Search Cloudflare documentation across Workers, Pages, R2, Zero Trust, and more. Generate best-practice Workers code and accelerate troubleshooting with relevant guidance. Follow clear steps to migrate Pages projects to Workers with fewer pitfalls.

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Google Drive

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Upload, organize, and share files in the cloud. Manage folders, set permissions, and search across stored documents.

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NWS Weather & Aviation

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Access real-time US weather forecasts, alerts, radar, and station observations from the National Weather Service. Retrieve aviation products including TAFs and SIGMETs for flight planning. Build location-aware features with point metadata, grid forecasts, and zone products.

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Google Super

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Google Super App combines all Google services including Drive, Calendar, Gmail, Sheets, Analytics, Ads, and more, providing a unified platform for seamless integration and management of your digital life.

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About Ar skills on iClaude

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