Is there any library available for exporting products from an eCommerce site to Amazon seller central store using MWS ?

[eluser]Unknown[/eluser]
Hi,
I am developing an eCommerce site using codeigniter based opensource GoCart. In that I want to implement a system to export my site store products to Amazon seller central using MWS. Is there any library available for Amazon MWS integration in codeIgniter? If anyone did it already, could you share it using github or any other medium ?

Thanks in advance,
Balaji.K