---
title: "Changes to POST /add-knowledge-base-sources/{knowledge_base_id}"
method: POST
path: "/add-knowledge-base-sources/{knowledge_base_id}"
---

# Changes to POST /add-knowledge-base-sources/{knowledge_base_id}

`POST /add-knowledge-base-sources/{knowledge_base_id}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 28 revisions.

- **2026-05-18** `6342a9990108` — 1 info
- **2026-02-26** `e89903d2c910` — 2 info

## Changes

- **2026-05-18** `6342a9990108` — 1 info
  - added the required property `knowledge_base_sources/items/oneOf[#/components/schemas/KnowledgeBaseSourceDocument]/file_size` to the response with the `201` status
- **2026-02-26** `e89903d2c910` — 2 info
  - added the optional property `max_chunk_size` to the response with the `201` status
  - added the optional property `min_chunk_size` to the response with the `201` status

---

[Operation](https://skmtc.dev/retellai/apis/retell-sdk/docs/add-knowledge-base-sources/:knowledge_base_id/post.md) · [API](https://skmtc.dev/retellai/apis/retell-sdk.md) · [Page](https://skmtc.dev/retellai/apis/retell-sdk/changes/add-knowledge-base-sources/:knowledge_base_id/post)