Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"4",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"7d4ea43f-120c-36cf-833c-b75043169b34",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZDJlNzhmYjIyNDI0MjMyZGMyN2I4MWZiY2I0N2ZkMjRjMWFjZjc2MDk4NzUzZjJkOWMyODU5ODI4N2RiNSJ9fX0="}]}}}

API Usage

GET https://headdb.org/api/head/7d4ea43f-120c-36cf-833c-b75043169b34

{
  "name": "4",
  "uuid": "7d4ea43f-120c-36cf-833c-b75043169b34",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZDJlNzhmYjIyNDI0MjMyZGMyN2I4MWZiY2I0N2ZkMjRjMWFjZjc2MDk4NzUzZjJkOWMyODU5ODI4N2RiNSJ9fX0=",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/d2e78fb22424232dc27b81fbcb47fd24c1acf76098753f2d9c28598287db5"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"4\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"7d4ea43f-120c-36cf-833c-b75043169b34\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZDJlNzhmYjIyNDI0MjMyZGMyN2I4MWZiY2I0N2ZkMjRjMWFjZjc2MDk4NzUzZjJkOWMyODU5ODI4N2RiNSJ9fX0=\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/7d4ea43f-120c-36cf-833c-b75043169b34