Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"N",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"a635f013-64fa-3093-93b2-6418e3b27ab6",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMWM3Yzk3MmU2Nzg1ZDZiMGFjZWI3NzlhYmRkNzcwMmQ5ODM0MWMyNGMyYTcxZTcwMjkzMGVjYTU4MDU1In19fQ=="}]}}}

API Usage

GET https://headdb.org/api/head/a635f013-64fa-3093-93b2-6418e3b27ab6

{
  "name": "N",
  "uuid": "a635f013-64fa-3093-93b2-6418e3b27ab6",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMWM3Yzk3MmU2Nzg1ZDZiMGFjZWI3NzlhYmRkNzcwMmQ5ODM0MWMyNGMyYTcxZTcwMjkzMGVjYTU4MDU1In19fQ==",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/1c7c972e6785d6b0aceb779abdd7702d98341c24c2a71e702930eca58055"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"N\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"a635f013-64fa-3093-93b2-6418e3b27ab6\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMWM3Yzk3MmU2Nzg1ZDZiMGFjZWI3NzlhYmRkNzcwMmQ5ODM0MWMyNGMyYTcxZTcwMjkzMGVjYTU4MDU1In19fQ==\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/a635f013-64fa-3093-93b2-6418e3b27ab6