Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"M",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"401c01cb-6c91-3a4f-a37b-6a70c63b9020",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMzFmZGU5MWIxOWI5MzA5OTEzNzI0ZmVhOWU4NTMxMTI3MWM2N2JjYjc4NTc4ZDQ2MWJmNjVkOTYxMzA3NCJ9fX0="}]}}}

API Usage

GET https://headdb.org/api/head/401c01cb-6c91-3a4f-a37b-6a70c63b9020

{
  "name": "M",
  "uuid": "401c01cb-6c91-3a4f-a37b-6a70c63b9020",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMzFmZGU5MWIxOWI5MzA5OTEzNzI0ZmVhOWU4NTMxMTI3MWM2N2JjYjc4NTc4ZDQ2MWJmNjVkOTYxMzA3NCJ9fX0=",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/31fde91b19b9309913724fea9e85311271c67bcb78578d461bf65d9613074"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"M\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"401c01cb-6c91-3a4f-a37b-6a70c63b9020\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMzFmZGU5MWIxOWI5MzA5OTEzNzI0ZmVhOWU4NTMxMTI3MWM2N2JjYjc4NTc4ZDQ2MWJmNjVkOTYxMzA3NCJ9fX0=\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/401c01cb-6c91-3a4f-a37b-6a70c63b9020