# POST /v1/projects/{}/locations/{}/endpoints/{}:explain stops working

Calls to POST /v1/projects/{}/locations/{}/endpoints/{}:explain on Vertex AI (us-central1-aiplatform.googleapis.com) stop working on March 16, 2027.

- API: Vertex AI (us-central1-aiplatform.googleapis.com) (us-central1-aiplatform.googleapis.com)
- Kind: Endpoint removal
- Announced: March 16, 2026
- Takes effect: March 16, 2027
- Calls after that day: fail
- Calls it hits: `POST /v1/projects/{}/locations/{}/endpoints/{}:explain`
- Source: [Announcement](https://docs.cloud.google.com/vertex-ai/docs/deprecations)
- Page: https://www.okapi.bot/providers/vertex-ai-2/breaking-changes/post-v1-projects-locations-endpoints-explain-stops-working/

## What to use instead

Use open source explanation libraries such as SHAP or LIME.