curl --request POST \
  --url https://sandbox.api.fin.com/v2/transactions/quote \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "type": "CRYPTO_WITHDRAWAL",
  "beneficiary_id": "6af8d598-36a5-477d-9320-d7c5ba309107",
  "amount": 5,
  "source": {
    "crypto_wallet_id": "c92dfe1d-220e-4446-a5e4-cd7d46031ba5"
  }
}
'

const url = 'https://sandbox.api.fin.com/v2/transactions/quote';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    type: 'CRYPTO_WITHDRAWAL',
    beneficiary_id: '6af8d598-36a5-477d-9320-d7c5ba309107',
    amount: 5,
    source: {crypto_wallet_id: 'c92dfe1d-220e-4446-a5e4-cd7d46031ba5'}
  })
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

HttpResponse<String> response = Unirest.post("https://sandbox.api.fin.com/v2/transactions/quote")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"type\": \"CRYPTO_WITHDRAWAL\",\n  \"beneficiary_id\": \"6af8d598-36a5-477d-9320-d7c5ba309107\",\n  \"amount\": 5,\n  \"source\": {\n    \"crypto_wallet_id\": \"c92dfe1d-220e-4446-a5e4-cd7d46031ba5\"\n  }\n}")
  .asString();

import requests

url = "https://sandbox.api.fin.com/v2/transactions/quote"

payload = {
    "type": "CRYPTO_WITHDRAWAL",
    "beneficiary_id": "6af8d598-36a5-477d-9320-d7c5ba309107",
    "amount": 5,
    "source": { "crypto_wallet_id": "c92dfe1d-220e-4446-a5e4-cd7d46031ba5" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://sandbox.api.fin.com/v2/transactions/quote"

	payload := strings.NewReader("{\n  \"type\": \"CRYPTO_WITHDRAWAL\",\n  \"beneficiary_id\": \"6af8d598-36a5-477d-9320-d7c5ba309107\",\n  \"amount\": 5,\n  \"source\": {\n    \"crypto_wallet_id\": \"c92dfe1d-220e-4446-a5e4-cd7d46031ba5\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "data": {
    "quote_id": "9ba7d6db-ac78-4a41-acae-f787ee6b1f24",
    "expire_at": "2026-04-29T10:09:33.524075766Z",
    "amount": 5,
    "destination_details": {
      "address": "0xD2Ba7d0DaBd36498df5906fC7B054Fa9EfA9843E",
      "currency": "USDC",
      "rail": "POLYGON"
    },
    "quote_estimation": {
      "developer_fee_fixed": 0.01,
      "developer_fee_percentage": 0.0005,
      "network_fee": 0.004149,
      "total_fee": 0.014649,
      "receivable_amount": 4.98535,
      "ata_fee_applied": false
    }
  }
}

{
  "message": "Authentication failed"
}

{
  "message": "<string>",
  "errors": [
    {}
  ]
}