---
title: "Upload Source Audio"
method: POST
path: "/api/videos/upload-source-audio"
---

# Upload Source Audio

`POST /api/videos/upload-source-audio`

Upload a source audio file for Seedance 2 reference generation.

Accepts audio files (max 30MB) and uploads them to CDN.
Returns the CDN URL and, when a project_id is supplied, a project-scoped
AudioClip for canonical video input persistence.

## Response `200`

Successful Response

- unknown

## 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)