Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"N",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"aa983b95-e9ff-3d5f-adab-ed7acc6fbf75",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvODIzZTQzNGQ2Mzk1ZmU3ZTYzNDkyNDMxYmRlZTU3ODJiZDVlZTViYzhjYWI3NTU5NDY3YmRkMWY5M2I5MjVhIn19fQ=="}]}}}

API Usage

GET https://headdb.org/api/head/aa983b95-e9ff-3d5f-adab-ed7acc6fbf75

{
  "name": "N",
  "uuid": "aa983b95-e9ff-3d5f-adab-ed7acc6fbf75",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvODIzZTQzNGQ2Mzk1ZmU3ZTYzNDkyNDMxYmRlZTU3ODJiZDVlZTViYzhjYWI3NTU5NDY3YmRkMWY5M2I5MjVhIn19fQ==",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/823e434d6395fe7e63492431bdee5782bd5ee5bc8cab7559467bdd1f93b925a"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"N\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"aa983b95-e9ff-3d5f-adab-ed7acc6fbf75\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvODIzZTQzNGQ2Mzk1ZmU3ZTYzNDkyNDMxYmRlZTU3ODJiZDVlZTViYzhjYWI3NTU5NDY3YmRkMWY5M2I5MjVhIn19fQ==\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/aa983b95-e9ff-3d5f-adab-ed7acc6fbf75