---
title: "Compose Video"
method: POST
path: "/api/agent/compose"
---

# Compose Video

`POST /api/agent/compose`

Start an agent video composition run for a project.

## Response `200`

Successful Response

- ComposeResponse
  - `run_id` string, required
  - `status` string, required
  - `session_id` string, nullable
  - `attachment_previews` AttachmentPreview[]
    - `id` string, required
    - `kind` string, required
    - `name` string, required
    - `preview_url` string, nullable
    - `mime_type` string, nullable
    - `size_bytes` integer, nullable
    - `reference_id` string, nullable
    - `reference_kind` string, nullable

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/latted/apis/motion-graphics-designer-api.md) · [All operations](https://skmtc.dev/latted/apis/motion-graphics-designer-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/latted/motion-graphics-designer-api/revisions/36d149b525df/schema)