HTTPie - aitch-tee-tee-pie - (httpie.org) is an open source CLI HTTP client that will make you smile: a user-friendly curl alternative that provides a simple http command designed for painless debugging and interaction with HTTP servers, RESTful APIs, and web services.
For example, it's very simple to make a simple GET request with only one parameter:
# http httpbin.org/ip
It's available on multiplatform (Linux, Windows, MacOS X) and it's well documented.
So, what else ? Go to documentation, read all and make your http request easy!
