curl --request GET \
  --url https://api.example.com/v1/debug/pending_transactions

{
  "pendingTransactions": [
    {
      "created": "2009-11-10 23:00:00 +0000 UTC m=+0.000000001",
      "nonce": 1234,
      "txHash": "71c1348f2d7ff7e814f9c3617983703435ea7446de420aeac488bf1de35737e8"
    }
  ]
}