Crawl4AI
66K starsOpen-source LLM-friendly web crawler and scraper for agent workflows.
$ npx skills add unclecode/crawl4aiComparison
OpenAgentSkill vs AgentSkills.io.
AgentSkills.io is a useful reference for the skill concept. OpenAgentSkill is built as the registry layer: agents can query, rank, compare, and install skills for real tasks.
12
Skills
583K
Stars
API
Registry
| Signal | OpenAgentSkill | AgentSkills.io |
|---|---|---|
| Core idea | A searchable registry and install layer that helps agents discover, compare, and use reusable skills. | A strong conceptual and documentation hub around the Agent Skills format and ecosystem. |
| Primary user | Agents and builders who need ranked skill shortlists for a concrete task. | Humans learning the specification, concepts, and examples around agent skills. |
| Agent API | Registry endpoints for search, recommendation, manifest, install handoff, audits, packs, and rankings. | Documentation-first browsing and reference material. |
| Evaluation model | GitHub stars, freshness, quality score, trust checks, audit warnings, use-case fit, and install readiness. | Useful ecosystem context, but less focused on side-by-side decision scoring. |
| Best for | Task-to-skill selection, SEO landing pages, agent-readable metadata, and install workflow handoff. | Understanding what Agent Skills are and why the format matters. |
| Positioning | The skill layer for AI agents: discover, compare, install, and compose skills automatically. Think npm for AI Agent Skills. | A reference destination for the skill concept and examples. |
Registry
Agent-readable APIs
Search, recommend, fetch manifests, and return install handoffs.
Compare
OpenAgentSkill vs skills.sh
Compare registry discovery with CLI-centered distribution.
SEO
Best skill lists
Turn task intent into ranked, installable shortlists.
Real skill shortlist
OpenAgentSkill ranks installable skills, not just concepts.
Each row below is a real indexed skill with quality, Trust Score, audit risk, and an install handoff. This is the practical layer agents need before choosing what to run.
Firecrawl
34K starsTurn websites into clean markdown or structured data for retrieval and agents.
$ npx skills add mendableai/firecrawln8n
190K starsWorkflow automation for connecting agents to repeated operational tasks.
$ npx skills add n8n-io/n8nMarkItDown
80K starsConvert PDFs, Office documents, and web files into clean markdown for agents.
$ npx skills add microsoft/markitdownLlamaIndex
42K starsData framework for building RAG and knowledge workflows around agent tasks.
$ npx skills add run-llama/llama_indexOpenBB
46K starsOpen-source investment research platform for financial analysis agents.
$ npx skills add OpenBB-finance/OpenBBVectorbt
5.4K starsFast quantitative research and backtesting workflows for financial agents.
$ npx skills add polakowo/vectorbtSerenity Skill
12K starsStock analysis skill for market research and financial reasoning workflows.
$ npx skills add muxuuu/serenity-skill