Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"T",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"4cfa1a40-2bf8-3bfa-aa7d-3fbda2a61048",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjRjNzU2MTliOTFkMjQxZjY3ODM1MGFkOTIzN2MxMzRjNWUwOGQ4N2Q2ODYwNzQxZWRlMzA2YTRlZjkxIn19fQ=="}]}}}

API Usage

GET https://headdb.org/api/head/4cfa1a40-2bf8-3bfa-aa7d-3fbda2a61048

{
  "name": "T",
  "uuid": "4cfa1a40-2bf8-3bfa-aa7d-3fbda2a61048",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjRjNzU2MTliOTFkMjQxZjY3ODM1MGFkOTIzN2MxMzRjNWUwOGQ4N2Q2ODYwNzQxZWRlMzA2YTRlZjkxIn19fQ==",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/64c75619b91d241f678350ad9237c134c5e08d87d6860741ede306a4ef91"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"T\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"4cfa1a40-2bf8-3bfa-aa7d-3fbda2a61048\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjRjNzU2MTliOTFkMjQxZjY3ODM1MGFkOTIzN2MxMzRjNWUwOGQ4N2Q2ODYwNzQxZWRlMzA2YTRlZjkxIn19fQ==\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/4cfa1a40-2bf8-3bfa-aa7d-3fbda2a61048