Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"P",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"18d44fa6-1316-3069-9de2-73fb9161fb0f",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZjlkZTYwMWRlZTNmZmVjYTRkNTQ1OTVmODQ0MjAxZDBlZDIwOTFhY2VjNDU0OGM2OTZiYjE2YThhMTU4ZjYifX19"}]}}}

API Usage

GET https://headdb.org/api/head/18d44fa6-1316-3069-9de2-73fb9161fb0f

{
  "name": "P",
  "uuid": "18d44fa6-1316-3069-9de2-73fb9161fb0f",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZjlkZTYwMWRlZTNmZmVjYTRkNTQ1OTVmODQ0MjAxZDBlZDIwOTFhY2VjNDU0OGM2OTZiYjE2YThhMTU4ZjYifX19",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/f9de601dee3ffeca4d54595f844201d0ed2091acec4548c696bb16a8a158f6"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"P\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"18d44fa6-1316-3069-9de2-73fb9161fb0f\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZjlkZTYwMWRlZTNmZmVjYTRkNTQ1OTVmODQ0MjAxZDBlZDIwOTFhY2VjNDU0OGM2OTZiYjE2YThhMTU4ZjYifX19\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/18d44fa6-1316-3069-9de2-73fb9161fb0f