Best Way to integrate 3rd Party API in Laravel

I just want to know that which is the best to integrate 3rd Party API or new add new functionality in Laravel 5.

Like I want to integrate FEDEX API. So after integrating its Library then I want to write its Code in Separate File, So I will include this file anywhere in any Controller/Model to easily use.

Another Example, I want to make a Parser, which fetching data from other Applications, So where I write such type of code in Laravel Application.

Any Help, Idea will be appreciated.

Thanks.

via Chebli Mohamed