Migrate YaCy's indexer to an external Solr instance?
A small service which indexes Tor hidden services by proxying for YaCy (which does the actual heavy lifting).
YaCy's wiki, caught by the Wayback Machine.
Documentation for YaCy's back-end API, which includes submitting URLs to be crawled. This is a good jumping off point for remotely controlling a YaCy instance. exocortex
Specific documentation for telling YaCy to start crawling a site, the mode in which to index it, where to start, how deeply, et cetera. indexing exocortex spider