The ion UI application has a built-in API explorer to help you navigate the API. Click the API icon or go to https://app.firstresonance.io/graphiql .
From the interactive explorer, you can explore the data in your ion workspace, test queries, see the API function documentation, and even update data using the API mutations.
A few example queries are provided in the GraphiQL Explorer to get your started. For additional functionality and API methods, you can navigate the API using the explorer in the right column of the GraphiQL Explorer.