If you want to check the details about a custom layout you have already created, follow the steps below:
Go to our API specification page and click the GET /address/layouts/v2/{name}, so that it expands.
Click Try it out in the upper-right corner.
In the Parameter section:
Click Execute to send the request to the API.
View the response returned by the API under Responses. This will give you information regarding the layout including:
Note that your request was successful only if the API returned an HTTP status code of 200 - Success. Check out the possible Response status codes to find out more about scenarios where the API returns errors.