Estimate the blockchain network fee for withdrawing cryptocurrency to an external wallet. Returns the estimated fee in both the native cryptocurrency and USD equivalent.

Sample API Request: GET

URL: https://caas-staging.coinme.com/services/wallets/estimateFee
Headers:
{
  "Authorization": "asdfghj", //required, authorization token
  "User-Agent": "partnerapi" //required
}

Request Body:
{
  "currencySymbol": "BTC", //optional, cryptocurrency code for enabled cryptocurrencies
  "chain": "BTC" //optional blockchain network for enabled cryptocurrencies
}

Sample API Response:

Successful Response:
{
  "estimateFee": "0.00012500",
  "estimateFeeUSD": "12.35"
}

Failure Response:
{
  "httpStatus": "400",
  "path": "GET /services/wallets/estimateFee",
  "timestamp": "2025-11-12T22:28:36Z",
  "errorData": [
    {
      "errorCode": "INVALID_CHAIN",
      "message": "Unsupported chain"
    }
  ]
}

Error Codes