curl --request POST \
  --url https://sandbox-api.sakawave.example/v1/cards/{cardId}/fund \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "externalReference": "card_fund_20260814_001",
  "accountId": "01K2Z3AB4D5E6F7G8H9JKMNPQR",
  "amountUsd": "2500",
  "fxQuoteId": "01K2Z3AB4V5W6X7Y8ZABCDEFGH"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    externalReference: 'card_fund_20260814_001',
    accountId: '01K2Z3AB4D5E6F7G8H9JKMNPQR',
    amountUsd: '2500',
    fxQuoteId: '01K2Z3AB4V5W6X7Y8ZABCDEFGH'
  })
};

fetch('https://sandbox-api.sakawave.example/v1/cards/{cardId}/fund', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://sandbox-api.sakawave.example/v1/cards/{cardId}/fund"

payload = {
    "externalReference": "card_fund_20260814_001",
    "accountId": "01K2Z3AB4D5E6F7G8H9JKMNPQR",
    "amountUsd": "2500",
    "fxQuoteId": "01K2Z3AB4V5W6X7Y8ZABCDEFGH"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "id": "01K2Z3AB4R5S6T7V8WXYZABCDE",
  "cardId": "01K2Z3AB4S5T6V7W8XYZABCDEF",
  "type": "funding",
  "status": "pending",
  "sourceCurrency": "NGN",
  "destinationCurrency": "USD",
  "sourceAmount": "4000000",
  "destinationAmount": "2500",
  "failureCode": null,
  "failureReason": null,
  "completedAt": null,
  "createdAt": "2026-08-14T09:11:40.000Z",
  "updatedAt": "2026-08-14T09:12:00.000Z"
}

{
  "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": 403,
  "message": "International wallets for your customers are not available yet. Your own approval cannot be used for a customer wallet.",
  "code": "international_customer_wallet_not_supported",
  "currency": "USD"
}

{
  "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": 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."
}

{
  "statusCode": 503,
  "code": "provider_unavailable",
  "message": "We could not issue an account number just now. Try again shortly."
}