NIST API access problem / Rate limit

[Guezone]

I was able to identify that at times, 403 errors were returned by the NVD/NIST API. It seems that this is due to the large number of requests made by SECMON.

-> In discussion with NIST about the cause of the problem (no documentation about rate limit).

[Guezone]

NVD response : Generally, we advise you to avoid opening more than 50 connections to the API or traditional data feeds within 30 seconds. However, if you begin to suspect you are being throttled, wait up to 1 minute before attempting new connections and the condition should resolve.