---
title: "Create or reuse a side thread from a webchat message"
method: POST
path: "/api/v1/chat/threads"
tags: ["Chat"]
---

# Create or reuse a side thread from a webchat message

`POST /api/v1/chat/threads`

**Required scope:** `chat`

## Request body

- ChatThreadCreateRequest
  - `session_id` string, required
  - `parent_message_id` union, required
    - string
    - integer
  - `selected_text` string, required

## Response `200`

Standard AstrBot success response

- SuccessEnvelope
  - `status` 'ok', required
  - `message` string
  - `data` unknown, required

## Changes

- **2026-06-14** `6b73b947caab` — 1 info
  - endpoint added
- **2026-03-09** `3d43cee2622a` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/astrbotdevs/apis/astrbot-openapi-v1/changes/api/v1/chat/threads/post.md)

---

[API](https://skmtc.dev/astrbotdevs/apis/astrbot-openapi-v1.md) · [All operations](https://skmtc.dev/astrbotdevs/apis/astrbot-openapi-v1/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/astrbotdevs/astrbot-openapi-v1/revisions/9f8da1b16ca0/schema)