This unofficial Flask API allows to interact with Optifine services more easily. It is currently WIP.
GET /versions
Returns a list of all versions in a json array.
GET /dl/?link=<link>
Downloads the file from the link and returns it. The link must be a 'adloadx' link.
Example: /dl/?link=http://optifine.net/adloadx?f=OptiFine_1.19.4_HD_U_I4.jar will return a direct download link to the jar file.