Do quickbook have a set of APIs we can use to get a payment or an invoice for example?

You can use a free invoicing app to receive payments from Paypal, Stripe, others.

https://go.zoho.com/wQI

then use a connector to mirror invoice data from the app to QBO.

https://www.make.com/en/register?pc=quickbooks

As an additional option, you can use another app to reconcile payments into QBO.

https://partnerstack.synder.com/quickbooks