3,778 skills. One install layer.

An MCP server providing superhero data and intelligence. Query heroes by name, power, publisher, and more. Access detailed stats, biographies, and abilities for 700+ superheroes and villains.

Access the OpenAlex academic research catalog - 270M+ publications through MCP.

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

Search the web and codebases to get precise, up-to-date context for programming and research. Find examples, API usage, and documentation from real repositories and sites to ship faster with fewer mistakes. Extend investigations with deep search, crawling, and business or profile

Czech VAT compliance tools. Check unreliable VAT payers (nespolehlivý plátce DPH), registered bank accounts, company lookup via ARES, and EU VAT validation via VIES. Essential for Czech/Slovak businesses to avoid VAT liability under §109 ZDPH.

**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

Search and analyze 700+ DeFi vaults across Morpho, Aave, Spark, Yearn, Beefy, Compound, Uniswap and others. Multi-vector risk scoring (Asset 40%, Platform 40%, Governance 20%) with Prime/Core/Edge.

Web search using free multi-engine search (NO API KEYS REQUIRED) — Supports Bing, Baidu, DuckDuckGo, Brave, Exa, Github, Juejin, and CSDN.

Track download history for 70,000+ agent skills across ClawHub and skills.sh. Like star-history.com, but for agent skills. **Tools:** - `get_skill_downloads(handle, slug)` — Get full download history with daily snapshots - `search_skills(query, limit)` — Search skills by n

Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm. Preflight validates your server's actual artifacts — `server.json`, `package.json`, `smithery.yaml` — against the documented requirements of each directory. Every finding includes the evidence fo