Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"M",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"444489de-6288-3f90-acf1-14b3391757bc",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNDljNDVhMjRhYWFiZjQ5ZTIxN2MxNTQ4MzIwNDg0OGE3MzU4MmFiYTdmYWUxMGVlMmM1N2JkYjc2NDgyZiJ9fX0="}]}}}

API Usage

GET https://headdb.org/api/head/444489de-6288-3f90-acf1-14b3391757bc

{
  "name": "M",
  "uuid": "444489de-6288-3f90-acf1-14b3391757bc",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNDljNDVhMjRhYWFiZjQ5ZTIxN2MxNTQ4MzIwNDg0OGE3MzU4MmFiYTdmYWUxMGVlMmM1N2JkYjc2NDgyZiJ9fX0=",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/49c45a24aaabf49e217c15483204848a73582aba7fae10ee2c57bdb76482f"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"M\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"444489de-6288-3f90-acf1-14b3391757bc\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNDljNDVhMjRhYWFiZjQ5ZTIxN2MxNTQ4MzIwNDg0OGE3MzU4MmFiYTdmYWUxMGVlMmM1N2JkYjc2NDgyZiJ9fX0=\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/444489de-6288-3f90-acf1-14b3391757bc