Unsplash joins Google Drive, Dropbox, OneDrive, and Box as a built-in remote source. Unlike the cloud-drive pickers it needs no OAuth popup - just a public Access Key. The picker opens a search box and a thumbnail grid; selected photos import through the same URL-import pipeline as any other remote file, and the demo honors Unsplash's guideline of pinging the per-photo download endpoint on selection.
Get a free Access Key at unsplash.com/developers. The key stays in the browser; searches call the Unsplash API directly.
Try it: paste an Access Key, click Enable Unsplash, then use the Unsplash source button to search and pick photos. They land in the queue ready to upload.
JavaScript API
// One-time configuration with your Unsplash Access Key.
AjaxUploader.configureRemoteSource('unsplash', { accessKey: 'YOUR_KEY' });
// Enable the source on an uploader instance.
AjaxUploader.create('#uploader', {
remoteSources: ['googledrive', 'dropbox', 'onedrive', 'box', 'unsplash']
});