---
title: "Changes to Create experiment items"
method: POST
path: "/v1/private/experiments/items"
---

# Changes to Create experiment items

`POST /v1/private/experiments/items`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 4 of 57 revisions.

- **2026-06-30** `20a1a33446d1` — 2 info
- **2026-06-19** `580e3bc69e8a` — 2 info
- **2026-06-02** `51f1b20841a7` — 1 info
- **2026-05-04** `d606e84c75e4` — 5 warning

## Changes

- **2026-06-30** `20a1a33446d1` — 2 info
  - added the new optional request property `experiment_items/items/feedback_scores/items/value_by_author/additionalProperties/author`
  - added the new optional request property `experiment_items/items/feedback_scores/items/value_by_author/additionalProperties/source_queue_id`
- **2026-06-19** `580e3bc69e8a` — 2 info
  - added the new optional request property `experiment_items/items/comments/items/source_queue_id`
  - added the new optional request property `experiment_items/items/feedback_scores/items/source_queue_id`
- **2026-06-02** `51f1b20841a7` — 1 info
  - added the new optional request property `experiment_items/items/trace_metadata`
- **2026-05-04** `d606e84c75e4` — 5 warning
  - removed the request property `experiment_items/items/comments/items/source_queue_id`
  - removed the request property `experiment_items/items/feedback_scores/items/source_queue_id`
  - removed the request property `experiment_items/items/feedback_scores/items/value_by_author/additionalProperties/author`
  - removed the request property `experiment_items/items/feedback_scores/items/value_by_author/additionalProperties/source_queue_id`
  - removed the request property `experiment_items/items/trace_metadata`

---

[Operation](https://skmtc.dev/comet-ml/apis/opik-rest-api/docs/v1/private/experiments/items/post.md) · [API](https://skmtc.dev/comet-ml/apis/opik-rest-api.md) · [Page](https://skmtc.dev/comet-ml/apis/opik-rest-api/changes/v1/private/experiments/items/post)