Request Upload Authorization - Key4UAPI Interface Integration

┌─────────────────────────────────────────────────────────────────┐
│ Step 1: Request upload authorization │
│ POST /suno/uploads/audio │
│ ↓ Returns: upload_id, upload_url │
└─────────────────────────────────────────────────────────────────┘
↓
┌─────────────────────────────────────────────────────────────────┐
│ Step 2: Upload file to S3 (direct client connection, not via API)│
│ PUT {upload_url} │
│ ↓ Upload audio file │
└─────────────────────────────────────────────────────────────────┘
↓
┌─────────────────────────────────────────────────────────────────┐
│ Step 3: Report upload completion │
│ POST /suno/uploads/audio/{id}/upload-finish │
│ ↓ Notify server that file has been uploaded │
└─────────────────────────────────────────────────────────────────┘
↓
┌─────────────────────────────────────────────────────────────────┐
│ Step 4: Poll upload status (until status is completed) │
│ GET /suno/uploads/audio/{id} │
│ ↓ Query every 2-3 seconds │
└─────────────────────────────────────────────────────────────────┘
↓
┌─────────────────────────────────────────────────────────────────┐
│ Step 5: Initialize audio clip │
│ POST /suno/uploads/audio/{id}/initialize-clip │
│ ↓ Returns: clip_id │
└─────────────────────────────────────────────────────────────────┘
↓
┌─────────────────────────────────────────────────────────────────┐
│ Step 6: Create continuation task using clip_id │
│ POST /suno/submit/music │
│ ↓ Returns: task_id (billing starts) │
└─────────────────────────────────────────────────────────────────┘

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

Responses

🟢200Success

application/json

Body

Example

{
    "id": "f208ab1f-e93a-4417-b089-e7fc38b50268",
    "url": "https://suno-uploads.s3.amazonaws.com/",
    "fields": {
        "Content-Type": "audio/mpeg",
        "key": "raw_uploads/f208ab1f-e93a-4417-b089-e7fc38b50268.mp3",
        "AWSAccessKeyId": "AKIA2V4GXGDKLZ43MUG7",
        "policy": "eyJleHBpcmF0aW9uIjogIjIwMjYtMDEtMDZUMDM6Mjg6MjlaIiwgImNvbmRpdGlvbnMiOiBbWyJjb250ZW50LWxlbmd0aC1yYW5nZSIsIDAsIDUyNDI4ODAwMF0sIFsic3RhcnRzLXdpdGgiLCAiJENvbnRlbnQtVHlwZSIsICJhdWRpby9tcGVnIl0sIHsiYnVja2V0IjogInN1bm8tdXBsb2FkcyJ9LCB7ImtleSI6ICJyYXdfdXBsb2Fkcy9mMjA4YWIxZi1lOTNhLTQ0MTctYjA4OS1lN2ZjMzhiNTAyNjgubXAzIn1dfQ==",
        "signature": "tevxOl3SW28afyLyzObeCYzIvWI="
    },
    "is_file_uploaded": false
}