# /v1/projects/{}/locations/{}/featurestores* stops working

Calls to /v1/projects/{id}/locations/{id}/featurestores* on Vertex AI stop working on February 17, 2027.

On February 17, 2027, the endpoint /v1/projects/{id}/locations/{id}/featurestores* will be removed. Starting on May 17, 2026, no new features will be added and only critical patches will be provided. Calls made to this endpoint after February 17, 2027, will fail as the service will be fully sunset.

## What to use instead

Migrate to Vertex AI Feature Store (V2) (featureOnlineStores, featureGroups).

- API: Vertex AI (aiplatform.googleapis.com)
- Kind: Endpoint removal
- Announced: February 17, 2026
- Takes effect: February 17, 2027
- Calls after that day: fail
- Calls it hits: `/v1/projects/{id}/locations/{id}/featurestores*`
- Source: [Announcement](https://docs.cloud.google.com/vertex-ai/docs/deprecations)
- Verified: November 6, 2026, against Vertex AI's own pages
- Page: https://www.okapi.bot/providers/vertex-ai/breaking-changes/v1-projects-locations-featurestores-stops-working/

## Vertex AI's words

> Vertex AI Feature Store (Legacy) is deprecated. Beginning on May 17, 2026, no new features will be added and only critical patches will be provided. On February 17, 2027, the service will be fully sunset and APIs will no longer be available.

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