It is a scalable solution. There are almost 2000+ end users in my company. On top of that, 4000+ end customers and vendors get payment through this API integration.

It is extensively used in our company.

Oracle API Management is both very scalable.

The users of the API gateway are actually the applications, for example, how many APIs we have. We have hundreds of APIs.

We're always increasing usage. 

I think that as a cloud-based solution, it is easily scalable. I would not say that it is vertically scalable, adding CPUs or memory, but parallelization and horizontal scaling should not be a problem.

Our company has more than 1,000 employees but this solution serves many external users as well. There are probably many thousands of users, in total. There are millions of requests that are made.

It's scaled fantastically. We were very surprised. We've had no issues with being unable to scale at all.