ClawFetch Headless Browser Renderer

Use this endpoint when a plain HTTP fetch returns an empty shell, skeleton HTML, or a bot-wall response — i.e., the page relies on client-side JavaScript to render its content. Ideal for React, Angular, Vue, Next.js, and Gatsby sites. Prefer this over a simple fetch endpoint whenever the target is a SPA or dynamically rendered page. If the page renders fine with a plain GET request, use a cheaper plain-fetch endpoint instead.

• URL is unreachable or returns a network error — empty or error response returned
• Page requires login or authentication that cannot be bypassed — returns limited or gated content
• Page uses advanced anti-bot measures that defeat even stealth Chromium — may return CAPTCHA page or empty content
• Malformed or invalid URL input — request rejected with validation error
• Page takes too long to render — possible timeout error
• URL points to a non-HTML resource (PDF, image, etc.) — markdown output may be empty or malformed