curl --request POST \
  --url https://sandbox-api.sakawave.example/v1/transfer-recipients/{recipientId}/payment-details \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "routeId": "01K2Z3AB4M5N6P7Q8RSTVWXYZA",
  "currency": "KES",
  "country": "KE",
  "accountHolderName": "Ada Okafor",
  "fields": {
    "bankCode": "001",
    "accountNumber": "0123456789"
  },
  "isDefault": true
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    routeId: '01K2Z3AB4M5N6P7Q8RSTVWXYZA',
    currency: 'KES',
    country: 'KE',
    accountHolderName: 'Ada Okafor',
    fields: {bankCode: '001', accountNumber: '0123456789'},
    isDefault: true
  })
};

fetch('https://sandbox-api.sakawave.example/v1/transfer-recipients/{recipientId}/payment-details', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://sandbox-api.sakawave.example/v1/transfer-recipients/{recipientId}/payment-details"

payload = {
    "routeId": "01K2Z3AB4M5N6P7Q8RSTVWXYZA",
    "currency": "KES",
    "country": "KE",
    "accountHolderName": "Ada Okafor",
    "fields": {
        "bankCode": "001",
        "accountNumber": "0123456789"
    },
    "isDefault": True
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "id": "01K2Z3AB4Q5R6S7T8VWXYZABCD",
  "recipientId": "01K2Z3AB4G5H6J7K8MNPQRSTVW",
  "routeId": "01K2Z3AB4M5N6P7Q8RSTVWXYZA",
  "paymentMethod": "bank-transfer",
  "currency": "KES",
  "country": "KE",
  "accountHolderName": "Ada Okafor",
  "institutionName": "Example Bank",
  "maskedIdentifier": "•••• 6789",
  "isDefault": true,
  "providerLocked": false,
  "createdAt": "2026-08-14T09:06:00.000Z"
}

{
  "statusCode": 400,
  "message": "Must be a valid identifier.",
  "code": "validation_failed",
  "errors": [
    {
      "message": "Must be a valid identifier.",
      "field": "accountId",
      "code": "custom",
      "path": [
        "accountId"
      ]
    }
  ]
}

{
  "statusCode": 401,
  "code": "INVALID_API_KEY",
  "message": "Invalid or inactive API credentials."
}

{
  "statusCode": 404,
  "code": "resource_not_found",
  "message": "Resource not found."
}

{
  "statusCode": 409,
  "code": "resource_conflict",
  "message": "The request conflicts with the current resource state."
}

{
  "statusCode": 422,
  "message": "Payment detail validation failed.",
  "code": "payment_detail_invalid",
  "errors": [
    {
      "message": "Account number is required.",
      "field": "accountNumber",
      "code": "required",
      "path": [
        "fields",
        "accountNumber"
      ]
    }
  ]
}

{
  "statusCode": 429,
  "message": "Too many API requests. Try again later.",
  "code": "api_key_rate_limit_exceeded",
  "retryAfterSeconds": 17
}

{
  "statusCode": 500,
  "code": "internal_server_error",
  "message": "An unexpected error occurred."
}