We would love to have official API support for retrieving private Knowledge Base articles from HubSpot.
Currently, there is no documented or supported CMS API for fetching private knowledge base content. The Site Search API only works for public knowledge base articles. Private App Tokens (PAT) do not work for the endpoint cms/v3/knowledge-base/articles.
This makes it difficult to build internal tools such as:
- Slack assistants or AI bots that answer internal support questions
- CRM integrations that surface private knowledge base content for support teams
- Automations that guide employees through internal processes
We have tested this using a private app, set all relevant scopes correctly, and used Bearer authentication with a PAT (both in Postman and in n8n). Despite this, we consistently receive a 401 Missing Auth response, even though other CMS or CRM APIs work fine using the same approach.
Suggested solution:
Please create an official, documented API for private knowledge base access, and allow it to be used with either Private App tokens or a clearly documented OAuth2 flow.