Broker with API to trade Metals @spot

Hello,
I am looking for a Broker with an API to trade Metals at spot.

Oanda ist one... but there are sure more!
Thanks

 

ubs. not sure what the advantage of spot is for a retail trader though.

 

And I dont know what is the difference between retail and prob firms...

Just want Metals at spot with an API.

PS: And I dont know why my signature is viewable in the preview but not in the posting!?

English is not my native language.