Rate limits
Keys provisioned by an organization share one common rate limit. API requests are limited to 20 requests per second per organization, allowing for bursts of up to 100 requests within a single second.
Bursts
A limiter controls how frequently events are allowed to happen. Our burst logic leverages a "token bucket" of size b, initially full and refilled at rate r tokens per second. Informally, in any large enough time interval, the Limiter limits the rate to r tokens per second, with a maximum burst size of b events.
As a special case, if r == Inf (the infinite rate), b is ignored. See Token bucket on Wikipedia for more about token buckets.