curl --request POST \
  --url https://app.onlyfansapi.com/api/{account}/media/upload \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "file": "file.jpg",
  "type": "avatar"
}'

{
  "prefixed_id": "ofapi_media_123",
  "file_name": "MyPhoto.png",
  "processId": "a9k3l2m7n8p0q4r5s6t",
  "host": "convert1.onlyfans.com",
  "sourceUrl": "https://of2transcoder.s3.amazonaws.com/upload/642a4d7e-134e-4cb4-99b5-6774248341c2/57141494436/file_name.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=token&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=credentials&X-Amz-Date=20250521T151119Z&X-Amz-SignedHeaders=host&X-Amz-Expires=604800&X-Amz-Signature=signature",
  "extra": "YW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZCBzdHJpbmcgYW4gZW5jb2RlZA==",
  "additional": {
    "user": "123"
  },
  "thumbs": [
    {
      "id": 1,
      "url": "https://cdn2.onlyfans.com/files/f/f0/fsdnjdsnf3k2rk/300x300_fjkdnknk23efsknj.jpg?Expires=1750518679&Signature=signature&Key-Pair-Id=PAIRID"
    }
  ]
}