Menu

Search
Cart 0
Start a project

NHN KCP payment gateway

Compatible versions:
  • 4.10.1
  • 4.10.2
  • 4.10.3
  • 4.10.4
  • 4.10.4.SP1
  • 4.11.1
  • 4.11.2
  • 4.11.3
  • 4.11.4
  • 4.11.5
  • 4.12.1
  • 4.12.2
  • 4.13.1
  • 4.13.2
  • 4.13.2.SP1
  • 4.13.2.SP2
  • 4.13.3
  • 4.14.1
  • 4.14.1.SP1
  • 4.14.2
  • 4.14.2.SP1
  • 4.14.3
  • 4.14.3.SP1
  • 4.15.1
  • 4.15.1.SP1
  • 4.15.1.SP2
  • 4.15.1.SP3
  • 4.15.1.SP4
  • 4.15.2
  • 4.16.1
  • 4.16.2
  • 4.17.1
  • 4.17.2
  • 4.17.2.SP1
  • 4.17.2.SP2
  • 4.17.2.SP3
  • 4.18.1
  • 4.18.1.SP1
  • 4.18.2
  • 4.18.2.SP1
  • 4.18.3
  • 4.6.3
  • 4.7.1
  • 4.7.2
  • 4.7.3
  • 4.7.4
  • 4.8.1
  • 4.8.2
  • 4.9.1
  • 4.9.2
  • 4.9.3
All features
Accept Credit/Debit Cards, Bank Transfer, and more payments in your CS-Cart store via NHN KCP. Secure redirect-based checkout for merchants in South Korea.
$99.00

Buy more, pay less

  • 35% off on any 3 add-ons
  • 40% off on any 4 including a connector

No coupon needed, applied in your basket.

$99.00

Accept Payments via NHN KCP (South Korea)

Integrate NHN KCP, South Korea's leading payment gateway, with your CS-Cart store. Accept credit cards, bank transfers, virtual accounts, and mobile payments from Korean customers with HMAC-SHA256 signature authentication and comprehensive response code handling.

Key Features

  • Multiple Payment Methods — Credit cards, bank transfers, virtual accounts, mobile payments
  • HMAC-SHA256 Authentication — Cryptographic signature on all API requests
  • Callback Verification — Signature validation on all payment callbacks
  • Transaction Inquiry — Verify payment status via KCP inquiry API
  • Response Codes — Detailed handling of 20+ KCP response codes
  • Test Mode — Full sandbox support for development and testing
  • Order Status Mapping — Map payment outcomes to your CS-Cart order statuses

How It Works

  1. Customer selects NHN KCP at checkout
  2. Customer is redirected to KCP's hosted payment page
  3. Customer selects payment method and completes payment
  4. KCP processes the payment and sends signed callback
  5. Your store verifies the callback and confirms the order

Requirements

  • CS-Cart 4.x (Multi-Vendor or Ultimate)
  • PHP 7.1+
  • NHN KCP merchant account
  • Site Code and Site Key from NHN KCP portal

Setup

  1. Install the addon in CS-Cart
  2. Get your Site Code and Site Key from NHN KCP merchant portal
  3. Add a new payment method in CS-Cart and enter your credentials
  4. Start accepting payments from Korean customers

Compatibility

  • CS-Cart 4.x, Multi-Vendor, Ultimate
  • PHP 7.1, 7.2, 7.3, 7.4, 8.0, 8.1, 8.2, 8.3+
  • Currency: KRW (Korean Won)