If you need to work in GraphQL without an internet connection, you can use the Altair GraphQL Client for offline access.
If you’re using Basic authentication for GraphQL, download the application from https://altair.sirmuel.design/#download, then set the Authorization header.
The token used in the authorization header is username:password encoding in base64.
If you’re using Windows authentication for GraphQL, you can install Altair as a browser extension. No header is required.