---
title: "Extend video"
method: POST
path: "/v1/videos/extensions"
tags: ["relay"]
---

# Extend video

`POST /v1/videos/extensions`

## Request

- The document declares no server URL.
- Auth: API key in header `Authorization`

Create an extension of a completed video

## Headers

- `Aiproxy-Channel` string
- `X-Aiproxy-Group` string
- `X-Aiproxy-Group-Channel-Mode` 'global' | 'own'

## Request body

- ModelVideosExtensionRequest
  - `input_reference` string
  - `model` string
  - `prompt` string
  - `seconds` unknown
  - `size` string
  - `video` unknown

## Response `200`

OK

- ModelVideo
  - `created_at` integer
  - `error` object
  - `id` string
  - `model` string
  - `object` string
  - `progress` integer
  - `prompt` string
  - `seconds` integer
  - `size` string
  - `status` 'queued' | 'in_progress' | 'completed' | 'succeeded' | 'failed' | 'cancelled'

## Changes

- **2026-10-12** `c2f7f35df2f5`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/labring/apis/ai-proxy-swagger-api/changes/v1/videos/extensions/post.md)

---

[API](https://skmtc.dev/labring/apis/ai-proxy-swagger-api.md) - [All operations](https://skmtc.dev/labring/apis/ai-proxy-swagger-api/llms.txt) - [OpenAPI document](https://skmtc.dev/labring/apis/ai-proxy-swagger-api/revisions/c2f7f35df2f5?raw)