I spent a day building a read-only tool that answers one question about a HubSpot portal: what is the cheapest tier its current usage actually requires? Everything below was probed with GET requests against a live portal on 2 August 2026. Where it contradicts HubSpot's documentation, trust this.
Source: [Dev.to](https://dev.to/meticulosity/nine-things-i-measured-about-the-hubspot-api-that-the-docs-dont-tell-you-2kbl)