COPS is described as '' main advantages are :' and is an app in the News & Books category. There are seven alternatives to COPS for Self-Hosted solutions, Windows, Linux, Mac and BSD. The best alternative is Calibre Web, which is both free and Open Source. Other great apps like COPS are Komga (Free, Open Source), Ubooquity (Free Personal), TinyOPDS (Free, Open Source) and ComiXed (Free, Open Source).
BicBucStriim streams digital books - it provides web-based access to your e-book collection. BicBucStriim is a simple PHP application that reads the Calibre data and publishes it in HTML form and as OPDS book catalog.
Calibre2opds can generate OPDS and HTML catalogs from the metadata of the calibre e-book library manager. These catalogs can then be used both to browse your e-book library online and also to download books on demand.