curl --request POST \
  --url https://api.natural.co/payments \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "data": {
    "attributes": {
      "amount": 500000,
      "currency": "USD",
      "counterparty": "pty_019cd1798d627ad9bc302511c4f2c115",
      "customerPartyId": "pty_019cd1798d617f65a79cb965dda9eac3",
      "description": "Payment for Q4 2025 development work"
    }
  }
}
'

{
  "data": {
    "type": "transaction",
    "id": "txn_1a2b3c4d5e6f7g8h9i0j1k2l3m4n5o6p",
    "attributes": {
      "amount": 500000,
      "currency": "USD",
      "status": "PROCESSING",
      "description": "Payment for Q4 2025 development work",
      "claimLink": null,
      "createdAt": "2026-01-04T15:30:00Z",
      "updatedAt": "2026-01-04T15:30:00Z",
      "instanceId": null
    },
    "relationships": {
      "customerParty": {
        "data": {
          "type": "party",
          "id": "pty_019cd1798d617f65a79cb965dda9eac3"
        }
      },
      "counterparty": {
        "data": {
          "type": "party",
          "id": "pty_019cd1798d627ad9bc302511c4f2c115"
        }
      }
    }
  }
}