Rate limits apply only to Backend API requests.
API requests limit rate: 400 requests per 1 minute (period).
Rate limits will be returned with every request in the following headers:
X-Rate-Limit-Limit- The number of allowed requests in the current periodX-Rate-Limit-Remaining- The number of remaining requests in the current periodX-Rate-Limit-Reset- The number of seconds left in the current period
If you'll reach rate limit - you'll get 429 response.