I want Automated bidding software for currency and commodity market .

we want an automated bidding Software that work on odin , now and nest . For Currency And Commodity market . Actually we need a software that automatically places the bid with fix difference we tell . for an example suppose a commodity is have rate 100 rupee we want that that if rate comes to 101 then 1 lot will sold . and automaticlly software will cancel all the bids and places two new bids one at 102 for sell of 1 lot and Second at 100 to purchase of one lot .In Short we want that the software will put the bid at fix difference and lot that we provide .