Getting info from API without credentials


First, some context: I try to get info from a web interface.
This web interface is locked, no integration out there and will from the manufacturer to work on something.
So, I chose to run a VM displaying the web interface, run some script to take a screenshot every 10mn. on the desired info, and then give it to Free OCR Space.

There is an option where you can generate an API response by just sending the URL of a public image.
Here is the result:

I’m struggling to get the content from “ParsedText”, to afterwards manipulate it and finally getting some sensors.
I’ll share the details in the project section of this forum once it’s done.

But it seems I’m missing something here, because I can’t figure out how to get this ParsedText in HA.

- platform: rest
  name: hanna_cloud
  resource: !secret hanna_cloud_url
  scan_interval: 900
  timeout: 30
  authentication: digest
    User-Agent: Home Assistant
    Content-Type: application/json
    Accept: application/json

Could somebody help, please?

Many thanks in advance