# /v1beta1/projects/{}/locations/{}/extensions* stops working

Calls to /v1beta1/projects/{id}/locations/{id}/extensions* on Vertex AI stop working on November 26, 2026.

On November 26, 2026, Vertex AI will shut down Vertex AI Extensions. Calls to /v1beta1/projects/{id}/locations/{id}/extensions* will fail after that date.

## What to use instead

Migrate to Agent Platform.

- API: Vertex AI (aiplatform.googleapis.com)
- Kind: Endpoint removal
- Announced: May 26, 2026
- Takes effect: November 26, 2026
- Calls after that day: fail
- Calls it hits: `/v1beta1/projects/{id}/locations/{id}/extensions*`
- Source: [Announcement](https://docs.cloud.google.com/vertex-ai/docs/release-notes)
- Verified: November 6, 2026, against Vertex AI's own pages
- Page: https://www.okapi.bot/providers/vertex-ai/breaking-changes/v1beta1-projects-locations-extensions-stops-working/

## Vertex AI's words

> Vertex AI Extensions is deprecated and will be shut down after November 26, 2026.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent