---
title: "Changes to Create experiment on a dataset"
method: POST
path: "/v1/datasets/{dataset_id}/experiments"
---

# Changes to Create experiment on a dataset

`POST /v1/datasets/{dataset_id}/experiments`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 70 revisions.

- **2026-06-12** `31371152a791` — 2 info
- **2026-04-29** `c81391216eb5` — 2 breaking

## Changes

- **2026-06-12** `31371152a791` — 2 info
  - added the required property `data/description` to the response with the `200` status
  - added the required property `data/name` to the response with the `200` status
- **2026-04-29** `c81391216eb5` — 2 breaking
  - removed the required property `data/description` from the response with the `200` status
  - removed the required property `data/name` from the response with the `200` status

---

[Operation](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api/docs/v1/datasets/:dataset_id/experiments/post.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/datasets/:dataset_id/experiments/post)