PAYCO simple payment integration guide

1. Configure PAYCO simple payment PG settings

Refer to the PAYCO settings page to configure the PG settings.

2. Request payment

To open the payment window, call JavaScript SDK IMP.request_pay(param, callback).

In PC browsers, callback is invoked after calling IMP.request_pay(param, callback). In mobile browsers, the page is redirected to m_redirect_url.

Javascript SDK
IMP.request_pay( { pg: "payco", merchant_uid: "{Merchant created Order ID}", //Example: order_no_0001 name: "Order name: Test payment", amount: 14000, buyer_email: "", buyer_name: "Customer name", buyer_tel: "010-1234-5678", buyer_addr: "Samseong-dong, Gangnam-gu, Seoul", buyer_postcode: "123-456", }, function (rsp) { // callback logic //* ...Omitted... *// }, );

Key parameter description

pg * string

PG code

  • If not specified and this is the only PG setting that exists, default PG is automatically set.
  • If there are multiple PG settings, set to payco.

pay_method string

Payment method code

Payment method codes

  • card (credit card)
  • trans(instant account transfer)
  • vbank(virtual account)

merchant_uid * string

Order ID

Must be unique for each request.


Customer phone number


amount * integer

Payment amount

Must be an integer (not string)