Magento 2.4.3 REST API, create instructions of how to pay with card.

I have below shown the Magento steps for checking out and order via the Magento process.

I want help of an experienced magento developer to have what body there should be in each step of the last4 steps if you are paying with a Card via the REST APIs and you have installed the Webkul Multivendor marketplace.

The format and content of the body with card payments, any token generation, any card tokens etc.

This seems to be something that is difficult to find how this format should look like when you call from the standard REST APIs.

I need help with this if you know how it should be done.

You document this int a text file with
1. endpoint/url for the endpoint
2. what the body should look like
3. what card tokens/what card information should be sent when and where
4. The response

This should be tested against my server and verified working.
Upon handover, I will test through and make sure it works.

Your experience:
– 5+ years Magento 2
– Know the checkout process inside out.

Magento tutorial:
Step 6,7,8 and 9 are the steps you will detail down with correct bodies and token requests
https://developer.adobe.com/commerce/webapi/rest/tutorials/orders/

Other references:
Magento process for Customer
https://stackoverflow.com/questions/33770986/how-to-place-an-order-using-magento2-api

Magento process for the Guest
https://magento.stackexchange.com/questions/270424/how-to-add-customer-details-for-guest-user-using-magento-rest-api-create-order

PS! Sorry, after bad experiences I am saying this:
Please note, if you are experienced in it then it is a Yes or No question and not “we can do it”, “do not worry we do it” etc.

I am straight to the point and do not need any waffling. I need someone with experience who can do the instructions.
I have more than 35 years of experience in making instructions and know when people know what they are doing. Then it takes minutes.