While the console API is not public facing, it's still available for you to explore and use if you wish. It has a built in graphiql interface like Plural itself, accessible at https://console.domain.com/graphiql, with the actual graphql api available at https://console.domain.com/gql.
The console does not have an API key system like Plural does, so you'll need to pull out a bearer token from the web app to interact with it directly. You can find this by just looking at the Authorization headers for gql requests in chrome inspector.