Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"Z",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"dade9a18-2111-307b-bb64-8ccc0188efee",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvYjkyOTU3MzQxOTVkMmM3ZmEzODliOTg3NTdlOTY4NmNlNjQzN2MxNmM1OGJkZjJiNGNkNTM4Mzg5YjU5MTIifX19"}]}}}

API Usage

GET https://headdb.org/api/head/dade9a18-2111-307b-bb64-8ccc0188efee

{
  "name": "Z",
  "uuid": "dade9a18-2111-307b-bb64-8ccc0188efee",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvYjkyOTU3MzQxOTVkMmM3ZmEzODliOTg3NTdlOTY4NmNlNjQzN2MxNmM1OGJkZjJiNGNkNTM4Mzg5YjU5MTIifX19",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/b9295734195d2c7fa389b98757e9686ce6437c16c58bdf2b4cd538389b5912"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"Z\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"dade9a18-2111-307b-bb64-8ccc0188efee\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvYjkyOTU3MzQxOTVkMmM3ZmEzODliOTg3NTdlOTY4NmNlNjQzN2MxNmM1OGJkZjJiNGNkNTM4Mzg5YjU5MTIifX19\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/dade9a18-2111-307b-bb64-8ccc0188efee