---
title: "Changes to Add assets to an entity"
method: POST
path: "/entity-collections/{entity_collection_id}/entities/{entity_id}/assets"
---

# Changes to Add assets to an entity

`POST /entity-collections/{entity_collection_id}/entities/{entity_id}/assets`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 28 revisions.

- **2026-09-17** `b8591e05c0ba`: 1 warning, 1 info
- **2026-09-12** `6205c7327cde`: 1 info
- **2026-07-31** `5dbd6e8473c9`: 1 warning

## Changes

- **2026-09-17** `b8591e05c0ba`: 1 warning, 1 info
  - deleted the `header` request parameter `x-api-key`
  - the endpoint scheme security `x-api-key` was added to the API
- **2026-09-12** `6205c7327cde`: 1 info
  - api operation id `create-assets` removed and replaced with `entityCollections_entities_createAssets`
- **2026-07-31** `5dbd6e8473c9`: 1 warning
  - removed the optional property `docs_url` from the response with the `400` status

---

[Operation](https://skmtc.dev/twelvelabs/apis/twelvelabs-api/docs/entity-collections/:entity_collection_id/entities/:entity_id/assets/post.md) - [API](https://skmtc.dev/twelvelabs/apis/twelvelabs-api.md) - [Page](https://skmtc.dev/twelvelabs/apis/twelvelabs-api/changes/entity-collections/:entity_collection_id/entities/:entity_id/assets/post)