A stable release of Hato is now available. This release improves the installation progress by moving the database settings from the ConnectionSettings.cs to the appsettings.json file, adds Postgres support and add an additional endpoint to retrieve multiple title ids at the same time (10 max).
Hato is not for end users, but mostly for web developers who want to interface with multiple anime/manga library management sites. Hato is an ASP.Core application that allows developer use a rest API to retrieve title id mappings that contains title ids of other services.
You can download the initial release here;