There are two ways to do this: (1) using the YaCy HTTP proxy, or (2) using YaCyIndexerGreasemonkey
. The proxy doesn't need any extra software, you just need to set your browser to use a proxy server. However, the proxy can't index pages that have cookies or use HTTPS, and its crawldepth is always 0. YaCyIndexerGreasemonkey requires a browser or browser extension that can run user scripts (e.g. Greasemonkey on Firefox), but it supports pages with cookies or HTTPS, and you can customize the crawldepth.
(I'm the author of YaCyIndexerGreasemonkey.)
Hope this helps.