---
title: "Changes to Create a knowledge store item collection"
method: POST
path: "/knowledge-stores/{knowledge_store_id}/item-collections"
---

# Changes to Create a knowledge store item collection

`POST /knowledge-stores/{knowledge_store_id}/item-collections`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 4 of 11 revisions.

- **2026-09-02** `335e364dd9b5` — 1 breaking, 1 info
- **2026-08-22** `fd9d80e384a8` — 1 breaking, 2 warning
- **2026-07-31** `5dbd6e8473c9` — 1 warning
- **2026-07-26** `c0926990c662` — 1 info

## Changes

- **2026-09-02** `335e364dd9b5` — 1 breaking, 1 info
  - response property `metadata/additionalProperties/` list-of-types was widened by adding types `array, boolean, integer and number` to media type `application/json` of response `201`
  - request property `metadata/additionalProperties/` list-of-types was widened by adding types `array, boolean, integer and number` to media type `application/json`
- **2026-08-22** `fd9d80e384a8` — 1 breaking, 2 warning
  - the `name` request property's minLength was increased from `0` to `1`
  - the `description` request property's maxLength was set to `2000`
  - the `name` request property's maxLength was set to `255`
- **2026-07-31** `5dbd6e8473c9` — 1 warning
  - removed the optional property `docs_url` from the response with the `400` status
- **2026-07-26** `c0926990c662` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/twelvelabs/apis/twelvelabs-api/docs/knowledge-stores/:knowledge_store_id/item-collections/post.md) · [API](https://skmtc.dev/twelvelabs/apis/twelvelabs-api.md) · [Page](https://skmtc.dev/twelvelabs/apis/twelvelabs-api/changes/knowledge-stores/:knowledge_store_id/item-collections/post)