Need help for integrating energy consumption Api

Hi guys,
Meeting you all after a long time, I am currently working on a project and need your help with it.

App Idea
To track peoples power constumtion cost and how much they are using it.

Source
Center point energy (https://www.centerpointenergy.com)

Api Guide
https://www.centerpointenergy.com/en-us/Services/Pages/competitive-retailer-usage-history.aspx?sa=ho&au=bus

I need your help making an app which can call out the data from this api and send the data to the app using the 32 bit number in your center point energy account.

***This is a really Important Project need your help