Plytix has two plan types with distinct rate limits for the API. All rate limits are applied based on API credentials known as keys. These limits are enforced on all the resources available in the API.
Each API key in the Free plan is allowed 20 requests every 10 seconds, capped at 2000 requests per hour.
Each API key in the PRO plans is allowed 50 requests every 10 seconds, capped at 5000 requests per hour.
(You can find more info here: https://apidocs.plytix.com/#api-limits386)