True or false? You must have a Professional or higher HubSpot account to purchase the API Add-on.

This is false because the API limit increase is not restricted only to Professional or higher accounts. HubSpot’s API usage documentation lists the API Limit Increase option across Free, Starter, Professional, and Enterprise tiers. The add-on increases request capacity beyond the account’s base subscription limits. API limits still vary by product tier and authentication method. The requirement is tied to HubSpot’s limit-increase rules, not only to having a Professional-level account.