Hello !
Here is my problem I have a restApi for my server and I would like luckperms can respond to a request via a provider if possible any idea ???

Your options are:

• Implement a webserver within a plugin and use the LP API to read data
  • Information about this is available here https://github.com/lucko/LuckPerms/wiki/Developer-API
• Read the database manually from a standalone app
  • The database schemas should be fairly self explanatory.