Our API is currently subject to a maximum request rate limit of 5 requests per second.
If you exceed this request rate we will return a 429 (too many requests) response.
We also add some additional headers to the response:
X-RateLimit-Limit: the current request limit per second
X-RateLimit-Remaining: the number of requests remaining in the current time period
X-RateLimit-Reset: when the current period refreshes in UNIX epoch seconds
If you find the request limit is causing difficulties please let us know.