Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"F",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"6f2cfee1-9bef-31bc-94e6-5ffc55b3109b",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvN2U0MzM2NTZiNDQzNjY4ZWQwM2RhYzhjNDQyNzIyYTJhNDEyMjFiZThiYjQ4ZTIzYjM1YmQ4YzJlNTlmNjMifX19"}]}}}

API Usage

GET https://headdb.org/api/head/6f2cfee1-9bef-31bc-94e6-5ffc55b3109b

{
  "name": "F",
  "uuid": "6f2cfee1-9bef-31bc-94e6-5ffc55b3109b",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvN2U0MzM2NTZiNDQzNjY4ZWQwM2RhYzhjNDQyNzIyYTJhNDEyMjFiZThiYjQ4ZTIzYjM1YmQ4YzJlNTlmNjMifX19",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/7e433656b443668ed03dac8c442722a2a41221be8bb48e23b35bd8c2e59f63"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"F\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"6f2cfee1-9bef-31bc-94e6-5ffc55b3109b\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvN2U0MzM2NTZiNDQzNjY4ZWQwM2RhYzhjNDQyNzIyYTJhNDEyMjFiZThiYjQ4ZTIzYjM1YmQ4YzJlNTlmNjMifX19\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/6f2cfee1-9bef-31bc-94e6-5ffc55b3109b