# /knowledge-base* stops working

Calls to /knowledge-base* on Vapi stopped working on September 29, 2025.

- API: Vapi (api.vapi.ai)
- Kind: Endpoint removal
- Takes effect: September 29, 2025
- Calls after that day: fail
- Calls it hits: `/knowledge-base*`
- Source: [Announcement](https://docs.vapi.ai/whats-new/2025/9/29)
- Page: https://www.okapi.bot/providers/vapi/breaking-changes/knowledge-base-stops-working/

## What to use instead

Use the knowledge base integrated into model configurations.