Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"U",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"75282402-fe96-3854-8959-fd96e89a82c8",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjA3ZmJjMzM5ZmYyNDFhYzNkNjYxOWJjYjY4MjUzZGZjM2M5ODc4MmJhZjNmMWY0ZWZkYjk1NGY5YzI2In19fQ=="}]}}}

API Usage

GET https://headdb.org/api/head/75282402-fe96-3854-8959-fd96e89a82c8

{
  "name": "U",
  "uuid": "75282402-fe96-3854-8959-fd96e89a82c8",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjA3ZmJjMzM5ZmYyNDFhYzNkNjYxOWJjYjY4MjUzZGZjM2M5ODc4MmJhZjNmMWY0ZWZkYjk1NGY5YzI2In19fQ==",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/607fbc339ff241ac3d6619bcb68253dfc3c98782baf3f1f4efdb954f9c26"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"U\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"75282402-fe96-3854-8959-fd96e89a82c8\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjA3ZmJjMzM5ZmYyNDFhYzNkNjYxOWJjYjY4MjUzZGZjM2M5ODc4MmJhZjNmMWY0ZWZkYjk1NGY5YzI2In19fQ==\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/75282402-fe96-3854-8959-fd96e89a82c8