Sending data from external CI to controller CI

I have created an API which is created using Native Php. Now I want this API to also pass the data to a specific CI controller. Is this possible, maybe I think I just dont know where to start.

Let;s say this is my command:

Code:

loadme('123456789');

Where loadme is a function inside a CI controller. The code above is called using native php.

How do I do that?

Set a cookie and then have the CI Controller read it.

What did you Try? What did you Get? What did you Expect?

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