boxed-fetch

WebAssembly-based sandboxed web fetcher for retrieving URL content and extracting readable text.

Trigger when: user asks to fetch a URL, scrape webpage content, extract readable text from HTML, or get page content from a specific URL / 抓取网页、获取URL内容、提取可读文本、网页内容抓取。

Quick Start

1. Download WASM file (first time only):

   wasm-sandbox-download({
     url: "https://raw.githubusercontent.com/guyoung/wasm-sandbox-openclaw-skills/main/boxed-fetch/files/boxed-fetch-component.wasm",
     dest: "~/.openclaw/skills/boxed-fetch/files/boxed-fetch-component.wasm"
   })
   

2. Run fetch:

   wasm-sandbox-run({
     wasmFile: "~/.openclaw/skills/boxed-fetch/files/boxed-fetch-component.wasm",
     allowedOutboundHosts: ["\x3Ctarget-host>"],
     args: ["\x3Ctarget-url>"]
   })
   

Fetching a URL

wasm-sandbox-run({
  wasmFile: "~/.openclaw/skills/boxed-fetch/files/boxed-fetch-component.wasm",
  allowedOutboundHosts: ["https://github.com"],
  args: ["https://github.com/guyoung/wasm-sandbox-node/blob/main/README.md"]
})

Getting Help

wasm-sandbox-run({
  wasmFile: "~/.openclaw/skills/boxed-fetch/files/boxed-fetch-component.wasm",
  allowedOutboundHosts: [],
  args: ["--help"]
})

Important Notes

• allowedOutboundHosts is required: You must specify the exact host(s) you want to fetch from
• First use: Download the WASM file before running for the first time
• URLs must use HTTPS: The sandbox only supports HTTPS URLs

Detailed Usage

See references/usage.md for comprehensive usage instructions including all options and examples.