curl --request POST \
  --url https://api.venlyfinance.com/v1/accounts/{accountId}/fiat-to-crypto/payment-sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inAmount": "100.00",
  "inCurrency": "EUR",
  "outCryptocurrency": "USDC",
  "callbackUrl": "https://example.com/webhooks/pay-in",
  "successRedirectUrl": "https://example.com/pay-in/success",
  "failureRedirectUrl": "https://example.com/pay-in/failure",
  "externalRef": "order-67890",
  "idempotencyKey": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}
'

import requests

url = "https://api.venlyfinance.com/v1/accounts/{accountId}/fiat-to-crypto/payment-sessions"

payload = {
    "inAmount": "100.00",
    "inCurrency": "EUR",
    "outCryptocurrency": "USDC",
    "callbackUrl": "https://example.com/webhooks/pay-in",
    "successRedirectUrl": "https://example.com/pay-in/success",
    "failureRedirectUrl": "https://example.com/pay-in/failure",
    "externalRef": "order-67890",
    "idempotencyKey": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    inAmount: '100.00',
    inCurrency: 'EUR',
    outCryptocurrency: 'USDC',
    callbackUrl: 'https://example.com/webhooks/pay-in',
    successRedirectUrl: 'https://example.com/pay-in/success',
    failureRedirectUrl: 'https://example.com/pay-in/failure',
    externalRef: 'order-67890',
    idempotencyKey: '3fa85f64-5717-4562-b3fc-2c963f66afa6'
  })
};

fetch('https://api.venlyfinance.com/v1/accounts/{accountId}/fiat-to-crypto/payment-sessions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.venlyfinance.com/v1/accounts/{accountId}/fiat-to-crypto/payment-sessions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'inAmount' => '100.00',
    'inCurrency' => 'EUR',
    'outCryptocurrency' => 'USDC',
    'callbackUrl' => 'https://example.com/webhooks/pay-in',
    'successRedirectUrl' => 'https://example.com/pay-in/success',
    'failureRedirectUrl' => 'https://example.com/pay-in/failure',
    'externalRef' => 'order-67890',
    'idempotencyKey' => '3fa85f64-5717-4562-b3fc-2c963f66afa6'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.venlyfinance.com/v1/accounts/{accountId}/fiat-to-crypto/payment-sessions"

	payload := strings.NewReader("{\n  \"inAmount\": \"100.00\",\n  \"inCurrency\": \"EUR\",\n  \"outCryptocurrency\": \"USDC\",\n  \"callbackUrl\": \"https://example.com/webhooks/pay-in\",\n  \"successRedirectUrl\": \"https://example.com/pay-in/success\",\n  \"failureRedirectUrl\": \"https://example.com/pay-in/failure\",\n  \"externalRef\": \"order-67890\",\n  \"idempotencyKey\": \"3fa85f64-5717-4562-b3fc-2c963f66afa6\"\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))

}

HttpResponse<String> response = Unirest.post("https://api.venlyfinance.com/v1/accounts/{accountId}/fiat-to-crypto/payment-sessions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"inAmount\": \"100.00\",\n  \"inCurrency\": \"EUR\",\n  \"outCryptocurrency\": \"USDC\",\n  \"callbackUrl\": \"https://example.com/webhooks/pay-in\",\n  \"successRedirectUrl\": \"https://example.com/pay-in/success\",\n  \"failureRedirectUrl\": \"https://example.com/pay-in/failure\",\n  \"externalRef\": \"order-67890\",\n  \"idempotencyKey\": \"3fa85f64-5717-4562-b3fc-2c963f66afa6\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.venlyfinance.com/v1/accounts/{accountId}/fiat-to-crypto/payment-sessions")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"inAmount\": \"100.00\",\n  \"inCurrency\": \"EUR\",\n  \"outCryptocurrency\": \"USDC\",\n  \"callbackUrl\": \"https://example.com/webhooks/pay-in\",\n  \"successRedirectUrl\": \"https://example.com/pay-in/success\",\n  \"failureRedirectUrl\": \"https://example.com/pay-in/failure\",\n  \"externalRef\": \"order-67890\",\n  \"idempotencyKey\": \"3fa85f64-5717-4562-b3fc-2c963f66afa6\"\n}"

response = http.request(request)
puts response.read_body

{
  "success": true,
  "result": {
    "id": "5e6f7081-92a3-4b4c-8d5e-6f708192a3b4",
    "accountId": "b2a1f0e9-8c7d-4e3a-9f21-0a1b2c3d4e5f",
    "status": "CREATED",
    "inAmount": 100,
    "inCurrency": "EUR",
    "outCryptocurrency": "USDC",
    "paymentUrl": "https://pay.example.com/session/5e6f708192a3b4c8",
    "externalRef": "order-67890",
    "walletId": "9f8e7d6c-5b4a-4938-8271-6a5b4c3d2e1f",
    "blockchainTxId": null,
    "cancellable": true,
    "expiresAt": "2026-01-15T10:30:00Z",
    "metadata": {
      "orderId": "67890"
    },
    "idempotencyKey": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "createdAt": "2026-01-15T09:30:00",
    "updatedAt": "2026-01-15T09:30:00"
  }
}

{
  "success": false,
  "errors": [
    {
      "code": "invalid-request",
      "message": "The request contains invalid parameters."
    }
  ]
}

{
  "success": false,
  "errors": [
    {
      "code": "unauthenticated",
      "message": "Please authenticate to perform this action."
    }
  ]
}

{
  "success": false,
  "errors": [
    {
      "code": "forbidden",
      "message": "You do not have permission to access this resource."
    }
  ]
}

{
  "success": false,
  "errors": [
    {
      "code": "account-not-found",
      "message": "The requested resource was not found."
    }
  ]
}

{
  "success": false,
  "errors": [
    {
      "code": "invalid-request",
      "message": "The request contains invalid parameters."
    }
  ],
  "result": {}
}

{
  "success": false,
  "errors": [
    {
      "code": "internal-error",
      "message": "An unexpected error occurred. Please try again later."
    }
  ]
}