Wled and Pixelart

Hi guys, i build a pixelart-pictureframe with a esp8266 with wled installed and 512px.
Ive played around with the pixel art converter
https://kno.wled.ge/features/pixel-art-converter/

Looks like that html-file is sending the json-output to the controller.
Is there a way to integrate this in home assistant? I only need the send-function for predefined json-payload. I want to prepare some pictures and send them to the controller every 10min or something and cycle through that pictures.
Thanks!