This page outlines the rate limits for the V5 API.

Currently, the rate limits are as follows:

EndpointLimit
/v5/*20 requests every 10 seconds
/v2/*100 requests every 10 seconds

If you hit this limit, there will be a cooldown of 60 seconds before you can make any more requests.

Rate Limit Response

If you hit the rate limit, you will receive a 429 Too Many Requests response with the following body:

{
  "message": "You are being rate limited"
}