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VAPI•2mo ago

Custom knowledge base endpoint not called

Hey,

I'm trying to setup a custom knowledge base endpoint. Here is what I did:

the knowledge base is created by the app through API
When a call is made, I get the assistant Config, then feed in the "assistantOverrides" the knowledgeBaseId to use for this call
the system prompt includes a simple phrase: "Use the knowledge base to answer any users question, you should have tools in order to handle it."

but I don't understand:

Do I need to setup a query tool for my custom knowledge base ? I don't add file I'm using my own vector & full text search databases
How to see when a tool call has been made during a call ?

I'm using web based calls.

Thanks !