API Call Calculator

HubSpot subscription plans offer very high usage limits, however, the number of API calls that ERP Bridge can handle depends on your HubSpot account subscription and whether you have purchased the API add-on.
For instance, if you run any Hub with a Free or Starter subscription, ERP Bridge can handle 100 calls per 10 seconds and 250,000 calls per day/account.
If you run any Hub with a Pro or Enterprise subscription, ERP Bridge can handle 150 calls per 10 seconds and 500,000 calls per day/account.
Finally, if you do have bought API Add-on, these are the limits: 200 calls per 10 seconds, 1,000,000 calls per day/account.
Feel free to use our API call estimator to figure out if you would need to upgrade your HubSpot plan accordingly.


Any attachment has 4 different API call to HubSpot (File upload, engagement creation, get type of engagement association, association with engage)

Total API calls: ~