我知道这里有一篇较旧的帖子有同样的问题。但它是在 2012 年被问到的，答案也是几年前的。这也是关于Google+ Photos的，我在问Google Photos
最近，Google Photos 推出了一项闪亮的新服务，发布了关于无限上传照片的新公告（对于照片大小 < 16 MB）。我目前有一项可以上传到 Google Drive 的服务。我检查了谷歌开发者网站，但没有找到任何与谷歌照片相关的东西。
那么新的 Google Photos 有任何开放的 API 吗？有没有人有任何信息？感谢您的意见。
Yes and no.
Yes, because uploading/dowloading/creating albums via the old Picasa Web Data API will have changes reflected to the new Google Photos interface as well.
No, because regardless of the user setting, all photos uploaded through this old API will count against the user's storage quota (even if you upload using the desktop version of Picasa!).
The Google Photos backup tool does some pre-compression before uploading photos, and only this (proprietary, undocumented) way of communicating with Google's servers provides access to the unlimited storage.