@wangewa said:
API keys not working
I just generated an API key
but I got a 404 error when requesting via 'https://api.themoviedb.org/3/search/movie'.
Please advise.

Can you tell us which of these errors is occurring?
See the list of TMDb server error warnings here.
https://www.themoviedb.org/documentation/api/status-codes
In your case:

Code    HTTP    Message  
6       404     Invalid id: The pre-requisite id is invalid or not found.  
37      404     The requested session could not be found.  

status_code":7,"status_message":"Invalid API key: You must be granted a valid key.","success

this is what I am getting

@wangewa said:
status_code":7,"status_message":"Invalid API key: You must be granted a valid key.","success
this is what I am getting

OK. This is a 7 - 401 error.

Only the Travis Bell admin and you can access your API Key.
So I suggest you

Take a Test
Using a computer, desktop or notebook.
On some mobile devices this test may not work correctly.
In the URL below, change THE_KEY to your API Key.
https://api.themoviedb.org/3/movie/550?api_key=THE_KEY
Use this example to do a search using a new tab or window in your browser.
You will receive the basic data of the Movie Fight Club (1999)
https://www.themoviedb.org/movie/550-fight-club
If it works, your Key is OK.

When there is a problem, the TMDb Server sends a message.
Can you tell which message the server sent?
Here is a list of possible messages:
https://developer.themoviedb.org/docs/errors

If it does not work, let us know right here.