Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"H",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"627960f9-2049-3234-af49-0df71fb7f437",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvM2MxZDM1OGQ5MjcwNzQyODljYzI2YmZmNWIxMjQwNzQ2ZjlmNGYwY2M0NmY5NDJmNTk4MWM2NTk1ZjcyZGQifX19"}]}}}

API Usage

GET https://headdb.org/api/head/627960f9-2049-3234-af49-0df71fb7f437

{
  "name": "H",
  "uuid": "627960f9-2049-3234-af49-0df71fb7f437",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvM2MxZDM1OGQ5MjcwNzQyODljYzI2YmZmNWIxMjQwNzQ2ZjlmNGYwY2M0NmY5NDJmNTk4MWM2NTk1ZjcyZGQifX19",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/3c1d358d927074289cc26bff5b1240746f9f4f0cc46f942f5981c6595f72dd"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"H\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"627960f9-2049-3234-af49-0df71fb7f437\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvM2MxZDM1OGQ5MjcwNzQyODljYzI2YmZmNWIxMjQwNzQ2ZjlmNGYwY2M0NmY5NDJmNTk4MWM2NTk1ZjcyZGQifX19\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/627960f9-2049-3234-af49-0df71fb7f437