The HubSpot public endpoints are powered by the same underlying technology as the core HubSpot application. As a result, HubSpot engineering closely monitors usage of the public APIs to ensure a quality experience for users.
Below, you'll find the limits by which a single integration (as identified by an access token) can consume the HubSpot public APIs. If you have any questions, please post them in the developer forum.
|Free & Starter||
|Professional & Enterprise||
|API add-on (any tier)||
429response code. Please see this page for more details about those errors, and suggestions for working with the request limits.
expires_inparameter whenever you generate an access token. Unauthorized (401) requests are not a valid indicator that a new access token must be retrieved.