When authenticated, rate-limiting is applied per verified tax id, and it's capped at 30 requests every 15 seconds. This means that, if you, as a superuser, has verified tax ids 12345678900 and 98765432100, you get 30 requests every 15 seconds for each one of them.
Each response come with 3 auxiliary headers to help you keep track of your current rate:
X-Ratelimit-Limit: 10 - The maximum number of requests allowed within a specific time period.
X-Ratelimit-Remaining: 10 - The number of remaining requests that can be made before hitting the rate limit.
X-Ratelimit-Reset: 1678405260 - The Unix timestamp when the rate limit will reset and the remaining request count will be refreshed.
If you find out that our given limits is not enough for your business, be sure to contact us and we'll check on individual basis how to help you and adjust our limits to your specific case.