We currently do not enforce rate limits on our Data API.
This being said, please read the Data Synchronization guide for best practices in keeping user data up-to-date. For the best performance, we recommend syncing data that comes through Human API with your local database to ensure the fastest possible load times and best experience for your users.
Source Rate Limits
While we have negotiated higher limits than typically available, we are still subject to rate limits imposed by some data sources that may affect the speed at which we can retrieve historical data for a given user. However, you will still receive recent data for each authenticated data source immediately after it is connected and our system is optimized so that it can take advantage of imposed rate limits and efficiently retrieve historical user data soon after.