---
title: "Chat Message Stream"
method: POST
path: "/chat/message/stream"
tags: ["chat"]
---

# Chat Message Stream

`POST /chat/message/stream`

## Request

- Base URL: `https://studio-api.meganova.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://studio-api.meganova.ai/chat/message/stream`
- Auth: OAuth 2
  - Password
  - Token URL: `auth/token`

## Request body

- ChatRequest
  - `character_id` string, uuid, required
  - `message` string, required
  - `history` ChatMessage[], nullable
    - `role` string, required
    - `content` string, required
  - `session_id` string, uuid, nullable
  - `persist` boolean
  - `user_persona_id` string, uuid, nullable
  - `is_arena` boolean
  - `model` string, nullable
  - `temperature` number, nullable
  - `max_tokens` integer, nullable
  - `stage_directions` string, nullable
  - `stage_messages` StageTurnMessage[]
    - `install_id` string, uuid, required
    - `content` string, required
  - `replace_from_message_id` string, uuid, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `404`: Not found
- `422`: Validation Error

## Changes

- **2026-10-16** `c683584f6060`: 3 info
  - added the new optional request property `replace_from_message_id`
  - added the new optional request property `stage_directions`
  - added the new optional request property `stage_messages`

[Operation history](https://skmtc.dev/meganova/apis/meganova-api/changes/chat/message/stream/post.md)

---

[API](https://skmtc.dev/meganova/apis/meganova-api.md) - [All operations](https://skmtc.dev/meganova/apis/meganova-api/llms.txt) - [OpenAPI document](https://skmtc.dev/meganova/apis/meganova-api/revisions/c683584f6060?raw)