CRYPTO

Fetch Crypto Fee

GEThttps://api.dutchapi.dubiabank.com/v1/crypto/fee

Preview the fee for a USDT and USD conversion. dutchFee is the Dutch API rate (1.45%, minimum amount $10), markup is your own margin.

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Query Params

assetstringrequired

Defaults to USDT

Asset

chainstringrequired

Defaults to BNB

Chain: Base, Stellar, Polygon or BNB Chain

amountstringrequired

Defaults to 100

Amount in USD. Minimum 10

markupPercentnumberoptional

Defaults to 0.5

Your markup as a percentage of the amount. Optional. It is your profit.

markupFixednumberoptional

Your fixed markup in the request currency. Optional. It is your profit.

Responses

{
  "code": 200,
  "success": true,
  "amount": "100.00",
  "fees": {
    "currency": "USD",
    "rule": "percentage",
    "ruleDetail": "1.45% of the amount, minimum $10",
    "dutchFee": "1.45",
    "markup": "0.50",
    "totalFee": "1.95"
  }
}

{
  "code": 400,
  "success": false,
  "message": "Invalid request parameters"
}

Updated 2026

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Language

CredentialsBearer

curl --request GET \
  --url https://api.dutchapi.dubiabank.com/v1/crypto/fee \
  --header "Authorization: Bearer $TOKEN" \
  --header "Content-Type: application/json"

const res = await fetch("https://api.dutchapi.dubiabank.com/v1/crypto/fee", {
  method: "GET",
  headers: {
    Authorization: `Bearer ${token}`,
    "Content-Type": "application/json"
  }
});
console.log(await res.json());

require "net/http"
require "json"

uri = URI("https://api.dutchapi.dubiabank.com/v1/crypto/fee")
req = Net::HTTP::Get.new(uri)
req["Authorization"] = "Bearer #{token}"
req["Content-Type"] = "application/json"
res = Net::HTTP.start(uri.host, uri.port, use_ssl: true) { |h| h.request(req) }
puts res.body

<?php
$ch = curl_init("https://api.dutchapi.dubiabank.com/v1/crypto/fee");
curl_setopt_array($ch, [
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_HTTPHEADER => ["Authorization: Bearer $token", "Content-Type: application/json"]
]);
echo curl_exec($ch);

import requests

res = requests.request(
    "GET",
    "https://api.dutchapi.dubiabank.com/v1/crypto/fee",
    headers={"Authorization": f"Bearer {token}"}
)
print(res.json())

Response

Click `Show example` to see an example response. Nothing is sent from this page: endpoints are live, so run real requests from your own code with small amounts. Or choose an example: