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Hi, I am using the Python API to access the Copernicus Climate Data Store (CDS) (https://github.com/ecmwf/cdsapi) to access cams-global-atmospheric-composition-forecasts data, but it gives me the following error when using PythonAnywhere:

WARNING Connection error: [HTTPSConnectionPool(host='ads.atmosphere.copernicus.eu', port=443): Max retries exceeded with url: /api/v2/resources/cams-global-atmospheric-composition-forecasts (Caused by ProxyError('Unable to connect to proxy', OSError('Tunnel connection failed: 403 Forbidden')))]. Attempt 1 of 500.

This does not happen on my local machine. Any solution?

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Thank you, I just found out that this Copernicus API is not on the allowlist, so I requested to add.