Digital goods, 1–5 cents USD. Checkout is POST /photos/checkout with header Vaiu-Token.
POST /photos/checkout
Vaiu-Token
Photo 1 — photo-1 — 1¢ USD
Photo 2 — photo-2 — 2¢ USD
Photo 3 — photo-3 — 3¢ USD
Photo 4 — photo-4 — 4¢ USD
Photo 5 — photo-5 — 5¢ USD