All endpoints in the API are rate limited, meaning that the amount of requests that you can complete within a time frame is limited. This system is in place to prevent a DDoS attack or general spam. When you hit a rate limit, the server will respond with 429 Too Many Requests. The headers of the response will contain information about when you can send more requests. The entire API has a rate limit of 10 requests/second, with a burst of 25 requests.