There are 3 repositories under rss-proxy topic.
API Support for your favorite torrent trackers
RSS-proxy allows you to do create an RSS or ATOM feed of almost any website, just by analyzing just the static HTML structure.
:satellite: Filtering RSS because Zapier is too expensive
BBC iPlayer programmes / Nitro API to RSS adaptor app
Proxy RSS feeds: strip out http auth and apply filters
RSS Corrector (can also be used as an RSS proxy)
Series watcher for Sonarr