An intelligent web crawling and scraping tool that converts complex websites into LLM-optimized Markdown with support for dynamic content.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install crawl4ai-skill
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install crawl4ai-skill using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Crawl4AI Web Crawler & Scraper?
Crawl4AI is a high-performance utility designed to bridge the gap between raw web data and AI-ready content. As a key component of the Openclaw Skills ecosystem, it provides developers with the ability to crawl entire websites or scrape specific pages without requiring expensive API keys. It leverages smart extraction algorithms to remove boilerplate elements like navigation bars, ads, and sidebars, resulting in a clean output that is significantly more efficient for large language models to process.
Crawl4AI Web Crawler & Scraper Use Cases
- Automatically crawling documentation sites to build local knowledge bases for RAG systems.
- Performing deep-web research by combining DuckDuckGo search with automated page scraping.
- Extracting structured data from JavaScript-heavy single-page applications (SPAs).
- Reducing token costs for AI agents by converting verbose HTML into dense, fit-for-purpose Markdown.
How Crawl4AI Web Crawler & Scraper Works
- The skill receives a URL or search query through its CLI or API interface.
- It initializes a headless browser session to handle JavaScript rendering and dynamic content loading if required.
- A smart extraction pass identifies the primary content of the page, filtering out noise and non-essential elements.
- The processed content is transformed into fit_markdown, a specialized format optimized for Openclaw Skills integration.
- The tool outputs the structured data to a file or stream, ready for ingestion by an AI model or data pipeline.
Crawl4AI Web Crawler & Scraper Setup
To get started with this tool in your Openclaw Skills workflow, install the package via pip:
pip install crawl4ai-skill
Once installed, you can immediately begin searching and crawling without additional configuration or API keys.
Crawl4AI Web Crawler & Scraper Data Schema & Taxonomy
Crawl4AI organizes extracted data into several formats to ensure compatibility with various Openclaw Skills workflows:
| Format | Description | Token Savings |
|---|---|---|
| fit_markdown | Smart extraction focusing only on core content and code. | ~80% reduction |
| raw_markdown | A complete Markdown representation of the original HTML structure. | Minimal reduction |
| Search Results | JSON-like list of titles, URLs, and snippets from DuckDuckGo. | N/A |
Metadata such as crawl depth, max pages, and wait strategies are handled via CLI arguments.
Crawl4AI Web Crawler & Scraper Advanced Features
- Recursive site crawling with automatic sitemap discovery and depth control.
- Advanced wait strategies including networkidle and specific CSS selector detection for dynamic pages.
- Seamless integration of search-and-crawl logic to automate the discovery of top-ranking results.
- Configurable delays and user-agent settings to ensure ethical crawling and site compatibility.
SKILL.md
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