---
title: "Changes to Create conversation attachment"
method: POST
path: "/api/agent_builder/conversations/{conversation_id}/attachments"
---

# Changes to Create conversation attachment

`POST /api/agent_builder/conversations/{conversation_id}/attachments`

> Every recorded change to this endpoint, newest first.
> 176 revisions in range; 20 not diffed.

## Timeline

Changed in 2 of 176 revisions.

- **2026-09-17** `94842f326dc0` — 1 info
- **2026-09-09** `640b2c77ef00` — 5 warning

## Changes

- **2026-09-17** `94842f326dc0` — 1 info
  - added the new optional request property `render_inline`
- **2026-09-09** `640b2c77ef00` — 5 warning
  - for the `path` request parameter `conversation_id`, the maxLength was set to `256`
  - the `description` request property's maxLength was set to `2048`
  - the `id` request property's maxLength was set to `256`
  - the `origin` request property's maxLength was set to `2048`
  - the `type` request property's maxLength was set to `256`

---

[Operation](https://skmtc.dev/elastic/apis/kibana-apis/docs/api/agent_builder/conversations/:conversation_id/attachments/post.md) · [API](https://skmtc.dev/elastic/apis/kibana-apis.md) · [Page](https://skmtc.dev/elastic/apis/kibana-apis/changes/api/agent_builder/conversations/:conversation_id/attachments/post)