Hi and welcome to Thunkable!
I have a JSON tutorial that you might find helpful: API JSON Tutorial (Video)
When posting about JSON, it’s important that you include the full text of the JSON response (an easy way to do this is to assign the green response block to a text input’s text and then copy the response from the preview; some APIs will only work on a mobile device). Be sure to format the text using the </> button in the toolbar at the top of the forum post.