api for buy/sell bitcoin I have recently started a project to build an exchange plateform. I am unable to find an API that provides me an ability to implement a feature to buy and sell bitcoins. 

Can someone please let me know


if an api is available to provide this feature.
also if i were to test it, how would i go towards testing that feature.


I have seen some api where there are end points available but it is very risky if end points are changed.

I will really appreciate your help.

Thanks,
A simple google search does the trick.

There are mutiple APIs from major crypto currency exchanges:


CoinBase API
Kraken API