What is the payment name for Coinbase Commerce in checkout URL structure?

[dkolb5]

Hi All,

I'm structuring a url to redirect the user to checkout using a specific payment type (coinbase commerce. For crypto payments). I know with shop pay (?=payment=shop_pay) the url would be like this: 

https://my-shop-name.myshopify.com/cart/36485954240671:1?payment=shop_pay. What's the payment name for coinbase commerce?

Thanks!