curl --request GET \
  --url https://api.kas.fyi/v1/rpc/getMempoolEntries \
  --header 'x-api-key: <api-key>'

{
  "mempoolEntries": [
    {
      "fee": "1000",
      "transaction": {
        "version": 1,
        "inputs": [
          {
            "previousOutpoint": {
              "transactionId": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
              "index": 0
            },
            "sequence": "4294967295",
            "sigOpCount": 1,
            "signatureScript": "0x473044..."
          }
        ],
        "outputs": [
          {
            "value": "1000000000",
            "scriptPublicKey": "<string>",
            "verboseData": {
              "scriptPublicKeyType": "pubkeyhash",
              "scriptPublicKeyAddress": "kaspa:qpzpfwcsqsxhxwup26r55fd0ghqlhyugz8cp6y3wxuddc02vcxtjg75pspnwz"
            }
          }
        ],
        "lockTime": "0",
        "subnetworkId": "0100000000000000000000000000000000000000",
        "gas": "0",
        "payload": "0x",
        "mass": "1000",
        "verboseData": {
          "transactionId": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
          "hash": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
          "computeMass": "1000",
          "blockHash": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
          "blockTime": "1638360000000"
        }
      },
      "isOrphan": false
    }
  ]
}