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Fetch the content of an HTTP/HTTPS URL. Web pages are extracted as readable text; document files (PDF, Word, Excel, etc.) are downloaded and parsed automatically.

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Parameters

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Supported file types

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Use cases

  • Extract readable text from a web page
  • Download and parse remote documents
  • Inspect API response bodies

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DeepSeek Fetch backend (opt-in)

By default web_fetch retrieves pages directly. Set tools.web_fetch.provider to "deepseek" to fetch through DeepSeek’s official Fetch API instead, which returns the page as Markdown — handy for pages the direct backend cannot render (e.g. JavaScript-heavy sites).
The backend uses the deepseek_api_key model credential (or the DEEPSEEK_API_KEY environment variable). Calls are billed per successful request ($0.75 per 1,000), so the backend stays opt-in; "direct" (the default) is free. The SSRF guard still applies: private, loopback, and cloud-metadata URLs are rejected before any request is issued. Document URLs (PDF, Word, etc.) are always downloaded and parsed locally.
web_fetch only retrieves static HTML. For pages that require JavaScript rendering (such as SPAs), use the browser tool instead.