Response <429>

Hello,

since 2 days I can't request data from the opensky API. I get the repsonse 429 when trying to access with python request.
What can be the problem? In my script I request state data from api/state every 10 seconds. It worked for several month now. 
What is the recommended minimum interval for requests? Thank You in advance for Your answer.

Problems here with the Python API (non-REST) as well.
Just getting empty responses, even though all queried icao24 are definitely in the air.
Requesting states every 10 seconds, as instructed in the documentation.

Thanks for the help!

So these limitations also apply to the Python API (github.com/openskynetwork/opensky-api) as this is just the Python implementation of the REST API?

Thanks for Your information.
I apply your service in a python script in which I record departing and arriving aircrafts at Stuttgart Airport, with their destination and starting country, in a database.
Thank you for providing such a good service for free.
1000 requests a day is not so much, as it means updating only every 90s. Would it be possible to increase it to 3000, every 30s?
 

...

Hello @ll,

what are the prerequisites for a "valid OpenSky account" as per the limitations? 

I have an account, but no receiver, I can log into the website, but my app accessing the REST API is blocked after 100 requests.

Sorry, the problem was on my end. Obviously the API didn't like the way I sent the credentials from my app and treated me as anonymous.

If anybody else is trying this with C# and HttpWebRequest, don't use the Credentials attribute. Instead, add username and password to the request headers.

                string encoded = System.Convert.ToBase64String(Encoding.GetEncoding("ISO-8859-1").GetBytes(OpenSkyUser + ":" + OpenSkyPassWord));
                request.Headers.Add("Authorization", "Basic " + encoded);