Details - HeadDB

Warning: The UUIDs are not real.

Command

/give @p skull 1 3 {display:{Name:"C",Lore:["Skull from HeadDB.org"]},SkullOwner:{Id:"ed51334c-0b67-337a-bdb2-f94db01fd868",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZDk0NTk5NmM4YWU5MWUzNzYxOTZkNGRjNjc2ZmVjMzFmZWFjNzkwYTJmMTk1YjI5ODFhNzAzY2ExZDE2Y2I2In19fQ=="}]}}}

API Usage

GET https://headdb.org/api/head/ed51334c-0b67-337a-bdb2-f94db01fd868

{
  "name": "C",
  "uuid": "ed51334c-0b67-337a-bdb2-f94db01fd868",
  "value": "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZDk0NTk5NmM4YWU5MWUzNzYxOTZkNGRjNjc2ZmVjMzFmZWFjNzkwYTJmMTk1YjI5ODFhNzAzY2ExZDE2Y2I2In19fQ==",
  "valueDecoded": {
    "textures": {
      "SKIN": {
        "url": "http://textures.minecraft.net/texture/d945996c8ae91e376196d4dc676fec31feac790a2f195b2981a703ca1d16cb6"
      }
    }
  },
  "command": "/give @p skull 1 3 {display:{Name:\"C\",Lore:[\"Skull from HeadDB.org\"]},SkullOwner:{Id:\"ed51334c-0b67-337a-bdb2-f94db01fd868\",Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZDk0NTk5NmM4YWU5MWUzNzYxOTZkNGRjNjc2ZmVjMzFmZWFjNzkwYTJmMTk1YjI5ODFhNzAzY2ExZDE2Y2I2In19fQ==\"}]}}}"
}

Minecraft Head Database

GET https://headdb.org/api/head/ed51334c-0b67-337a-bdb2-f94db01fd868