Mastering OpenClaw's web_fetch Tool

The web_fetch tool is one of OpenClaw's essential lightweight utilities for retrieving and processing web content—without launching a full browser. It's designed for speed, simplicity, and integration into automated workflows.

What web_fetch Does

At its core, web_fetch performs two operations:

1. HTTP GET Request: Retrieves raw HTML content from the provided URL.
2. Readable Content Extraction: Uses Readability.js (and optionally Firecrawl) to strip away clutter—sidebars, ads, headers, footers—and delivers clean, structured text or Markdown.

This makes web_fetch ideal for:

• Extracting article content
• Reading documentation
• Grabbing blog posts
• Processing forum threads
• Capturing API documentation

Unlike browser automation, web_fetch does not execute JavaScript, making it fast but unsuitable for dynamic or client-rendered pages.

Key Parameters

| Parameter | Description | Example | |---------------|-----------------------------------------------|--------------------------------------| | url | Required HTTP/HTTPS URL | https://example.com/article | | extractMode | Output format: markdown or text | `