https://httpie.io/

Commands are very simple, http or https:
https httpbin.org/status/418

Custom HTTP method, HTTP headers and JSON data:

http PUT pie.dev/put X-API-Token:123 name=John

Submitting forms:

http -f POST pie.dev/post hello=World

See the request that is being sent using one of the output options:

http -v pie.dev/get

Upload a file using redirected input:

http pie.dev/post < files/data.json

Use named sessions:

http --session=logged-in -a username:password pie.dev/get API-Key:123
http --session=logged-in pie.dev/headers

Alternatively there's a clone of httpie with a very similar interface that is actually just a wrapper for curl:
https://github.com/rs/curlie