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

Where is your company located?

its located in the UAE

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

Thanks for adding details regarding your concern, josette-mouawad-. Let me route you to the best support to assist you with this QuickBooks Online API concern.

While the QuickBooks Community can provide answers and troubleshooting solutions to specific questions, there are some things about which only our Intuit Developers can provide specific information about your concern.

We have a separate forum where you can interact with fellow developers, product experts, and engineers about software, QuickBooks API concerns, or developer license-related questions. That said, I encourage posting this question to our Intuit Developer Community. They have the tools and resources available to assist you with your concerns.

Here's how:

1. In your browser, enter this link: https://help.developer.intuit.com/s/
2. Choose your QuickBooks product.
   
3. Select the Ask a Question option.
   
4. Press Sign In.
5. Use your Intuit login credentials.

Keep me posted if you need a hand with other QuickBooks-related concerns. I'll be around to provide further assistance.