---
title: "Changes to Send Group Message Streaming"
method: POST
path: "/v1/groups/{group_id}/messages/stream"
---

# Changes to Send Group Message Streaming

`POST /v1/groups/{group_id}/messages/stream`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 36 revisions.

- **2025-10-03** `f0554a0bf8b2`: 3 info

## Changes

- **2025-10-03** `f0554a0bf8b2`: 3 info
  - added the new optional request property `messages/items/anyOf[subschema #1: MessageCreate]/content/anyOf[subschema #1]/items/oneOf[subschema #1: TextContent]/signature`
  - added the new optional request property `messages/items/anyOf[subschema #1: MessageCreate]/content/anyOf[subschema #1]/items/oneOf[subschema #3: ToolCallContent]/signature`
  - added the new optional request property `messages/items/anyOf[subschema #1: MessageCreate]/content/anyOf[subschema #1]/items/oneOf[subschema #7: OmittedReasoningContent]/signature`

---

[Operation](https://skmtc.dev/yu-code666/apis/letta-api/docs/v1/groups/:group_id/messages/stream/post.md) - [API](https://skmtc.dev/yu-code666/apis/letta-api.md) - [Page](https://skmtc.dev/yu-code666/apis/letta-api/changes/v1/groups/:group_id/messages/stream/post)