Web Fetch

ID	web_fetch
Category	Network
Features	None
Dependencies	None

Fetch content from URLs and convert HTML to markdown or plain text. Powered by FetchKit with built-in SSRF protection, low-noise extraction, bounded crawl discovery, and structured fetchers for common developer and research sources.

Tools

web_fetch

Fetch a URL and return its content.

Parameter	Type	Required	Description
url	string	yes	URL to fetch
method	string	no	HTTP method (default: GET)
as_markdown	boolean	no	Convert HTML to markdown
as_text	boolean	no	Convert HTML to plain text
content_focus	string	no	Extraction mode: full, main, readable, or agent
crawl	boolean	no	Discover and fetch a bounded set of same-origin pages
max_pages	integer	no	Maximum crawl pages, including the seed (default: 5, maximum: 20)
if_none_match	string	no	ETag for a conditional request
if_modified_since	string	no	Last-Modified value for a conditional request
render	string	no	Use rakers for opt-in lightweight JavaScript/DOM rendering
save_to_file	string	no	Workspace destination when file download is enabled for the capability

Returns: content body, status code, metadata, quality signals, redirect history, and crawl summaries when requested.

Notes

• Timeouts: 1s for first byte, 30s for body. Partial content returned on body timeout.
• Binary content: Images, PDFs, etc. return metadata only (content type, size) — not the binary data.
• Focused extraction: Use content_focus: "agent" for FetchKit’s lowest-noise extraction strategy.
• Rendered pages: render: "rakers" runs bounded inline JavaScript without loading page subresources. It is intended for simple rendered pages, not full browser automation.
• Crawl scope: Crawl discovery stays on the seed URL’s origin and enforces FetchKit’s page limit.
• SSRF protection: Private IPs (loopback, RFC1918, link-local, CGNAT) are blocked by default with DNS pinning to prevent rebinding attacks.
• Excessive newlines: Automatically filtered from converted content.

See Also

• File System — save fetched content to workspace
• Capabilities Overview