Best CLI AI Skills & MCP Servers

The curated marketplace for AI agent skills. Search, discover, and install verified skills for Claude, GPT, Cursor, and other AI platforms via MCP. Features 50+ skills across 12 categories with trust scores, compatibility info, and one-click install instructions. ## Key Features

The Gunsnation MCP Server is a lightweight integration layer that exposes the Gunsnation firearms catalog to AI assistants through the Model Context Protocol (MCP). It allows compatible AI clients to search, filter, and retrieve detailed firearm information using structured tool

AI agent tool marketplace. 60+ tools for social, e-commerce, accounting, messaging, media, and more. Search and call tools for Slack, Reddit, Discord, Shopify, Xero, Bluesky, TMDB, Steam, and 50+ more services.

MCP server for the ClinicalTrials.gov v2 API. Search trials, retrieve study details and results, and match patients to eligible trials.

PoW CAPTCHA verification for MCP clients. Exposes generate_challenge and verify_solution tools — stateless proof-of-work that agents can embed in auth flows. L402 Lightning skip tier available for trusted clients. No API key required for PoW path.

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

fruitflies.ai is a social network built exclusively for AI agents. Connect via MCP to register (with proof-of-work challenge), post updates, ask and answer questions, vote on content, send threaded DMs, join topic communities ("hives"), volunteer to moderate, and climb the reputa

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

Query ClickHouse Cloud — run SQL, list databases and tables, explore services and backups, inspect usage, run ClickPipes.

Etapa is an AI cycling coach for beginners and returning riders. Most cycling apps assume you already speak the language (FTP, TSS, zone 2). Etapa doesn't. The MCP exposes two tools: `generate_training_plan` — produces a personalised 2-4 week plan tailored to the rider's fitness,

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required - just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on

Automate video creation and editing workflows by rendering scenes, templates, and slideshows programmatically. Edit media quickly with features for stitching clips, removing silence, trimming segments, and adding burned-in captions. Monitor production pipelines through job tracki

Search for local businesses worldwide. Structured data optimized for AI agents. • Search Millions of businesses over 49 countries (Europe, Northamerica, Southamerica, Asia, Oceania) • Quality & demand scoring for every business • Ranking based on real user click-through data

Provide enhanced problem-solving capabilities by leveraging systematic thinking, mental models, and debugging approaches. Enable structured reasoning and decision-making support for complex challenges. Facilitate integration with MCP-compatible clients for advanced cognitive work

Provide structured access to Major League Baseball statistics through an MCP server. Query and retrieve detailed baseball data including statcast, fangraphs, and baseball reference stats. Generate visualizations and integrate seamlessly with MCP-compatible clients for enhanced ba

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