curl --request GET \
  --url https://staging.crossmint.com/api/2025-06-09/wallets/{walletLocator}/transactions \
  --header 'X-API-KEY: <x-api-key>'

{
  "transactions": [
    {
      "params": {
        "calls": [
          {
            "address": "<string>",
            "functionName": "<string>",
            "abi": [
              "<unknown>"
            ],
            "args": [
              "<unknown>"
            ],
            "value": "0"
          }
        ],
        "chain": "<unknown>",
        "signer": {
          "type": "external-wallet",
          "address": "<string>",
          "locator": "<string>"
        }
      },
      "onChain": {
        "userOperation": {
          "sender": "<string>",
          "nonce": "<string>",
          "callData": "<string>",
          "callGasLimit": "<string>",
          "verificationGasLimit": "<string>",
          "preVerificationGas": "<string>",
          "maxFeePerGas": "<string>",
          "maxPriorityFeePerGas": "<string>",
          "signature": "<string>",
          "paymaster": "<string>",
          "paymasterVerificationGasLimit": "<string>",
          "paymasterData": "<string>",
          "paymasterPostOpGasLimit": "<string>",
          "factory": "<string>",
          "factoryData": "<string>"
        },
        "userOperationHash": "<string>",
        "txId": "<string>",
        "proxiedTxId": "<string>",
        "explorerLink": "<string>"
      },
      "id": "<string>",
      "createdAt": 123,
      "approvals": {
        "pending": [
          {
            "signer": {
              "type": "external-wallet",
              "address": "<string>",
              "locator": "<string>"
            },
            "message": "<string>"
          }
        ],
        "submitted": [
          {
            "signature": "<string>",
            "submittedAt": 123,
            "signer": {
              "type": "external-wallet",
              "address": "<string>",
              "locator": "<string>"
            },
            "message": "<string>",
            "metadata": {
              "deviceInfo": "<string>",
              "ipAddress": "<string>",
              "userAgent": "<string>"
            }
          }
        ],
        "required": 123
      },
      "completedAt": 123,
      "error": {
        "reason": "build_failed",
        "message": "<string>",
        "revertData": {}
      },
      "sendParams": {
        "token": "<string>",
        "params": {
          "recipient": "<string>",
          "recipientAddress": "<string>",
          "amount": "<string>"
        }
      },
      "fees": {
        "estimate": "<unknown>",
        "actual": "<unknown>",
        "billed": {
          "usd": 123
        },
        "billing": {}
      }
    }
  ]
}