---
title: "Changes to Delete session annotations in a project that match the supplied filter."
method: DELETE
path: "/v1/projects/{project_identifier}/session_annotations"
---

# Changes to Delete session annotations in a project that match the supplied filter.

`DELETE /v1/projects/{project_identifier}/session_annotations`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 70 revisions.

- **2026-05-05** `8f5ab32a7463` — 1 info
- **2026-04-29** `c81391216eb5` — 1 breaking

## Changes

- **2026-05-05** `8f5ab32a7463` — 1 info
  - endpoint added
- **2026-04-29** `c81391216eb5` — 1 breaking
  - api removed without deprecation

---

[Operation](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api/docs/v1/projects/:project_identifier/session_annotations/delete.md) · [API](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api.md) · [Page](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api/changes/v1/projects/:project_identifier/session_annotations/delete)