curl --request GET \
  --url https://xbt-mainnet.gomaestro-api.org/v0/assets/runes/{rune} \
  --header 'api-key: <api-key>'

{
  "data": {
    "circulating_supply": "5226.00",
    "divisibility": 2,
    "etching_cenotaph": false,
    "etching_height": 840000,
    "etching_tx": "2bb85f4b004be6da54f766c17c1e855187327112c231ef2ff35ebad0ea67c69e",
    "id": "840000:1",
    "max_supply": "111111111.00",
    "mints": 5226,
    "name": "ZZZZZFEHUZZZZZ",
    "premine": "110000000.00",
    "spaced_name": "Z•Z•Z•Z•Z•FEHU•Z•Z•Z•Z•Z",
    "symbol": "ᚠ",
    "terms": {
      "amount_per_mint": "1.00",
      "end_height": null,
      "end_offset": null,
      "mint_txs_cap": "1111111",
      "start_height": null,
      "start_offset": null
    },
    "unique_holders": 1568
  },
  "last_updated": {
    "block_hash": "00000000000000000001332b3017e2b72bdd063145bbf808b3c1722a0fd60859",
    "block_height": 840051
  }
}