Invoke Forward Proxy

POST

pci-proxy

forward

curl --request POST \
  --url https://api-sandbox.y.uno/v1/pci-proxy/forward \
  --header 'Content-Type: application/json' \
  --header 'private-secret-key: <api-key>' \
  --header 'public-api-key: <api-key>' \
  --header 'yuno-proxy-destination-url: <yuno-proxy-destination-url>' \
  --data '
{
  "amount": 2500,
  "currency": "USD",
  "card": {
    "number": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}",
    "expiration_month": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}",
    "expiration_year": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}",
    "holder_name": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}"
  }
}
'

import requests

url = "https://api-sandbox.y.uno/v1/pci-proxy/forward"

payload = {
    "amount": 2500,
    "currency": "USD",
    "card": {
        "number": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}",
        "expiration_month": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}",
        "expiration_year": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}",
        "holder_name": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}"
    }
}
headers = {
    "yuno-proxy-destination-url": "<yuno-proxy-destination-url>",
    "public-api-key": "<api-key>",
    "private-secret-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'yuno-proxy-destination-url': '<yuno-proxy-destination-url>',
    'public-api-key': '<api-key>',
    'private-secret-key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    amount: 2500,
    currency: 'USD',
    card: {
      number: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}',
      expiration_month: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}',
      expiration_year: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}',
      holder_name: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}'
    }
  })
};

fetch('https://api-sandbox.y.uno/v1/pci-proxy/forward', 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-sandbox.y.uno/v1/pci-proxy/forward",
  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([
    'amount' => 2500,
    'currency' => 'USD',
    'card' => [
        'number' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}',
        'expiration_month' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}',
        'expiration_year' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}',
        'holder_name' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "private-secret-key: <api-key>",
    "public-api-key: <api-key>",
    "yuno-proxy-destination-url: <yuno-proxy-destination-url>"
  ],
]);

$response = curl_exec($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-sandbox.y.uno/v1/pci-proxy/forward"

	payload := strings.NewReader("{\n  \"amount\": 2500,\n  \"currency\": \"USD\",\n  \"card\": {\n    \"number\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}\",\n    \"expiration_month\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}\",\n    \"expiration_year\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}\",\n    \"holder_name\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}\"\n  }\n}")

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

	req.Header.Add("yuno-proxy-destination-url", "<yuno-proxy-destination-url>")
	req.Header.Add("public-api-key", "<api-key>")
	req.Header.Add("private-secret-key", "<api-key>")
	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-sandbox.y.uno/v1/pci-proxy/forward")
  .header("yuno-proxy-destination-url", "<yuno-proxy-destination-url>")
  .header("public-api-key", "<api-key>")
  .header("private-secret-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"amount\": 2500,\n  \"currency\": \"USD\",\n  \"card\": {\n    \"number\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}\",\n    \"expiration_month\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}\",\n    \"expiration_year\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}\",\n    \"holder_name\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.y.uno/v1/pci-proxy/forward")

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

request = Net::HTTP::Post.new(url)
request["yuno-proxy-destination-url"] = '<yuno-proxy-destination-url>'
request["public-api-key"] = '<api-key>'
request["private-secret-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"amount\": 2500,\n  \"currency\": \"USD\",\n  \"card\": {\n    \"number\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}\",\n    \"expiration_month\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}\",\n    \"expiration_year\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}\",\n    \"holder_name\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}\"\n  }\n}"

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

{}

Forwards your request to the destination in the yuno-proxy-destination-url header, replacing {{vaulted_token.<TOKEN>.<field>}} expressions with real card data inside Yuno’s secure environment. See the Forward Proxy guide for a step-by-step integration.

BetaThe PCI Proxy is in beta and is enabled per organization. In production, requests return 403 PRODUCT_NOT_ENABLED until your organization is activated — contact your Key Account Manager (KAM). The sandbox is open for testing.

Server-side onlyProxy requests detokenize card data and must only be made from your backend. Never expose your private-secret-key in client-side code.

All of GET, POST, PUT, PATCH, and DELETE are supported: the destination receives the same method you used. Put the complete destination URL, including its path and any query string, in the yuno-proxy-destination-url header; a query string on the /pci-proxy/forward request itself is rejected. The destination host must be on your destination allowlist. If you are a PCI-certified merchant and need the raw card data itself rather than a pass-through call, use Retrieve Enrolled Payment Method by ID PCI Data instead.

Authorizations

public-api-key

string

header

default:<Your public-api-key>

required

private-secret-key

string

header

default:<Your private-secret-key>

required

Headers

yuno-proxy-destination-url

string

required

The complete destination URL, including its path and any query string (for example https://api.example-processor.com/charges/ch_123/capture?expand=true). Must be a public HTTPS hostname on port 443, and the host must be registered on your destination allowlist; IP addresses and internal networks are rejected. It must not contain {{vaulted_token...}} expressions (card data must never appear in a URL).

Example:

"https://api.example-processor.com/charges"

yuno-proxy-timeout

integer

Destination timeout in seconds. Default 30, maximum 120.

Required range: 1 <= x <= 120

Example:

30

yuno-account-id

string

Optional account scope. Narrows which allowlisted destinations are permitted for this request; it does not affect token resolution (vaulted tokens are always scoped to your organization). Like all yuno-* headers it is removed before forwarding and never reaches the destination.

Example:

"acc_123"

Body

The body the destination API expects, with vaulted token expressions where card data belongs. The proxy is content-transparent: it forwards your body and Content-Type unchanged and resolves {{vaulted_token.<TOKEN>.<field>}} expressions anywhere in the raw body, so any content type is supported (JSON, form-encoded, XML). The JSON object below is illustrative. Supported fields: number, expiration_month, expiration_year, holder_name (the security code is not stored and cannot be injected). At most 20 distinct tokens per request; maximum body size 1 MB. Expressions are also resolved in header values. All non-expression content is forwarded untouched.

The body is of type object.

Response

Response from the destination, passed through unchanged (the actual status code is whatever the destination returned; check yuno-proxy-destination-status).

The destination's response body, unchanged.

⌘I

Invoke Forward Proxy

curl --request POST \
  --url https://api-sandbox.y.uno/v1/pci-proxy/forward \
  --header 'Content-Type: application/json' \
  --header 'private-secret-key: <api-key>' \
  --header 'public-api-key: <api-key>' \
  --header 'yuno-proxy-destination-url: <yuno-proxy-destination-url>' \
  --data '
{
  "amount": 2500,
  "currency": "USD",
  "card": {
    "number": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}",
    "expiration_month": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}",
    "expiration_year": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}",
    "holder_name": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}"
  }
}
'

import requests

url = "https://api-sandbox.y.uno/v1/pci-proxy/forward"

payload = {
    "amount": 2500,
    "currency": "USD",
    "card": {
        "number": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}",
        "expiration_month": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}",
        "expiration_year": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}",
        "holder_name": "{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}"
    }
}
headers = {
    "yuno-proxy-destination-url": "<yuno-proxy-destination-url>",
    "public-api-key": "<api-key>",
    "private-secret-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'yuno-proxy-destination-url': '<yuno-proxy-destination-url>',
    'public-api-key': '<api-key>',
    'private-secret-key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    amount: 2500,
    currency: 'USD',
    card: {
      number: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}',
      expiration_month: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}',
      expiration_year: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}',
      holder_name: '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}'
    }
  })
};

fetch('https://api-sandbox.y.uno/v1/pci-proxy/forward', 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-sandbox.y.uno/v1/pci-proxy/forward",
  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([
    'amount' => 2500,
    'currency' => 'USD',
    'card' => [
        'number' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}',
        'expiration_month' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}',
        'expiration_year' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}',
        'holder_name' => '{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "private-secret-key: <api-key>",
    "public-api-key: <api-key>",
    "yuno-proxy-destination-url: <yuno-proxy-destination-url>"
  ],
]);

$response = curl_exec($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-sandbox.y.uno/v1/pci-proxy/forward"

	payload := strings.NewReader("{\n  \"amount\": 2500,\n  \"currency\": \"USD\",\n  \"card\": {\n    \"number\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}\",\n    \"expiration_month\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}\",\n    \"expiration_year\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}\",\n    \"holder_name\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}\"\n  }\n}")

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

	req.Header.Add("yuno-proxy-destination-url", "<yuno-proxy-destination-url>")
	req.Header.Add("public-api-key", "<api-key>")
	req.Header.Add("private-secret-key", "<api-key>")
	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-sandbox.y.uno/v1/pci-proxy/forward")
  .header("yuno-proxy-destination-url", "<yuno-proxy-destination-url>")
  .header("public-api-key", "<api-key>")
  .header("private-secret-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"amount\": 2500,\n  \"currency\": \"USD\",\n  \"card\": {\n    \"number\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}\",\n    \"expiration_month\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}\",\n    \"expiration_year\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}\",\n    \"holder_name\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.y.uno/v1/pci-proxy/forward")

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

request = Net::HTTP::Post.new(url)
request["yuno-proxy-destination-url"] = '<yuno-proxy-destination-url>'
request["public-api-key"] = '<api-key>'
request["private-secret-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"amount\": 2500,\n  \"currency\": \"USD\",\n  \"card\": {\n    \"number\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.number}}\",\n    \"expiration_month\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_month}}\",\n    \"expiration_year\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.expiration_year}}\",\n    \"holder_name\": \"{{vaulted_token.1a2b3c4d-5678-90ab-cdef-111213141516.holder_name}}\"\n  }\n}"

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

{}

Getting Started

Reference

Customers

Network Tokens

Customer Sessions (Enrollment)

Checkout Sessions

Payment Methods (Checkout)

Checkout Builder

Payment Methods (Direct Workflow)

PCI Proxy

Payments

Pre-Debit Notifications

3DS2 Setup

Unreferenced Refunds

Dry-run

Payment Links

Recipients for Marketplace

Sellers (Franchise)

Subscriptions

Payouts

Organizations

Reports

Installments

AI Caller

Communications Campaigns

Conversion Rate

Banking Connectivity

Webhooks

Authorizations

Headers

Body

Response