Flask Deployment to Heroku with Single Endpoint

I want to deploy this application to a server and create an endpoint to use it. The project in this link is an OCR Scanner called Pix2Text. I want to use it to convert images to text. I need to set up an endpoint to send an image and receive the results of this application. For the server, I want it to handle 200 requests per minute and be scalable. You can choose any provider, but please provide the cost of your service and the cost of the server. Here's the link to the open-source project I want to deploy: Pix2Text. https://github.com/breezedeus/Pix2Text