What makes you think these two co founders are not taking your idea and building it themselves without you?
My guess is you are not NA/EU, and if any of these cofounders are, they may have more access to resources to get to market before you.
Any contracts (if any exist) would be hard enforce because it is international and it would take a lot of money from you to enforce a contract internationally.
OP can’t execute the ideas. The other founders might be able to in NA and Europe.