withfig
IDE-style autocomplete for your existing terminal & shell
httpie
An interactive command-line HTTP and API testing client built on top of HTTPie featuring autocomplete, syntax highlighting, and more. https://twitter.com/httpie
amir9480
This extension adds extra autocompletion for laravel projects to VSCode.
hasura
curl for GraphQL with autocomplete, subscriptions and GraphiQL. Also a dead-simple universal javascript GraphQL client.