user48360: Just service with simple API. I want to allow clients to pay usd or bitcoin. Then after payment complete i need to add my custom value on my site client purse. Is there simple system for it?
Back end server on java

user47956: Checkout the Coinbase API: https://developers.coinbase.com/
Coinbase is very well known and trusted.
Then for the USD option you could have another button that links to Paypal, Stripe, 2Checkout, etc..

48360: <p>Just service with simple API. I want to allow clients to pay usd or bitcoin. Then after payment complete i need to add my custom value on my site client purse. Is there simple system for it?
Back end server on java</p>
 47956: <p>Checkout the Coinbase API: <a href="https://developers.coinbase.com/" rel="nofollow noreferrer">https://developers.coinbase.com/</a></p>

<p>Coinbase is very well known and trusted.</p>

<p>Then for the USD option you could have another button that links to Paypal, Stripe, 2Checkout, etc..</p>
