---
title: "Resume Chat Stream"
method: POST
path: "/chats/{chatId}/resume"
tags: ["Chats"]
---

# Resume Chat Stream

`POST /chats/{chatId}/resume`

Resumes consumption of the active assistant generation as Server-Sent Events. If the latest message has already finished, returns a closing chat-state event. The response is `text/event-stream`; each event is `data: <JSON>\n\n` where the JSON conforms to ChatStreamEvent.

## Path parameters

- `chatId` string, required — The unique identifier of the chat.

## Response `200`

A single Server-Sent Events payload emitted by streaming chat endpoints. Each SSE event is `data: <JSON>\n\n` where the JSON conforms to one of the union members.

## Other responses

- `401` — Response for status 401
- `403` — Response for status 403
- `404` — Response for status 404
- `422` — Response for status 422
- `500` — Response for status 500

## Changes

- **2026-08-04** `98b36164ce34` — 1 info
  - added the non-success response with the status `422`
- **2026-07-30** `da68370a2aea` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/vercel/apis/v0-platform-api-beta/changes/chats/:chatId/resume/post.md)

---

[API](https://skmtc.dev/vercel/apis/v0-platform-api-beta.md) · [All operations](https://skmtc.dev/vercel/apis/v0-platform-api-beta/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/vercel/v0-platform-api-beta/revisions/3cf5debd6cf4/schema)