> Slumber is a terminal-based HTTP client, built for interacting with REST and other HTTP clients

I wonder what that means -- I looked around the docs but didn't see that it interacts with other clients. I thought maybe it would show a generated curl command or something along those lines. But perhaps it's just a typo for HTTP servers?

Maybe it's referring to the CLI, since you could pipe to/from it? There's an example relating to curl: https://slumber.lucaspickering.me/user_guide/cli/subcommands...