Access to Graphql from Browser Playground Open the GraphQL playground in your browser: https:///:realm_code:/space_code:/graphql/ E.g. https://eu-central.finmars.com/realm0v4ry/space063sw/graphql/ (Link is not lead to anything, just an example) You will see: Query editor Schema explorer Result panel You must be authenticated. You can access Documentation Click ob button with Book icon in top left corner Now you can navigate on Schema To see what operation you could call, click on "Query" Here is the list of supported operations. So, here you can see "Type" it will show to you all available Fields to work with in your Query Also you can see "Filters" and "Pagination". These sections will show you how to configure your Query to work with data For example you could see that there is String filters and Data Filters. Other Relations fields also could be filters