App for Amazon searches : automation

I order frequently on Amazon and am frustrated by third party sellers who advertise prime shipping. My own experience has been poor quality products from third party vendors.

Is there an app that can conduct Amazon searches and only show products sold by Amazon? Is there a automatic script or setting that automates the Amazon search to show only Amazon sold products ?

I know how to manually filter my results - I am interested in a automated product that I can set my preferences and forget about it forever.