curl --request GET \
  --url https://xbt-mainnet.gomaestro-api.org/v0/mempool/transactions/{tx_hash}/outputs/{output_index} \
  --header 'api-key: <api-key>'

{
  "data": {
    "address": "bc1qr46dacxy28zz5apsjrvs5jdgvs5sdcf2ed4tvl",
    "inscriptions": [],
    "runes": [],
    "satoshis": "85000",
    "script_pubkey": "00141d74dee0c451c42a743090d90a49a8642906e12a",
    "spending_tx": null
  },
  "indexer_info": {
    "chain_tip": {
      "block_hash": "0000000000000000000085563bb7da463844c02d6c82bca13e3eec5411f8c8ed",
      "block_height": 897991
    },
    "estimated_blocks": [
      {
        "block_height": 897992,
        "sats_per_vb": {
          "max": 210,
          "median": 4,
          "min": 1
        }
      }
    ],
    "mempool_timestamp": "2025-05-23 11:43:08"
  }
}