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WeChat Pay

Last Updated: 09 July 2025 | Change Log

WeChat Pay

WeChat Pay, officially referred to as Weixin Pay in China, is a mobile payment and digital wallet service.

Note

Make yourself familiar with our API Principles to ensure a resilient integration.

Product Overview

Why use WeChat Pay?

WeChat Pay is a digital wallet allowing your customers to make online or mobile wallet payments. It is considered a vital payment method if you are operating in China.

Feature summary

Payment typeRecurringReversalsPartial ReversalsDisputesAuth and Settlement (Sale)
Digital wallet❌✅✅❌✅
  • Maximum Transaction Value: 50.000 CNY
  • Maximum Transaction per consumer wallet per day: 100.000 CNY

Acceptance currencies

CurrencyCurrency codes
Australian DollarAUD
Canadian DollarCAD
Chinese YuanCNY
EuroEUR
Hong Kong DollarHKD
Japanese YenJPY
New Zeland DollarNZD
Pound SterlingGBP
US DollarUSD
Singapore DollarSGD

Acceptance currencies

Get Started

Get started using our API Reference and set your headers.

Request

POST https://try.access.worldpay.com/apmPayments

Example requests

application/json
{
  "transactionReference": "Memory265-13/08/1876",
  "merchant": {
    "entity": "default"
  },
  "instruction": {
    "method": "wechatpay",
    "expiryIn": 10,
    "value": {
      "amount": 250,
      "currency": "CNY"
    },
    "narrative": {
      "line1": "MindPalace"
    },
    "paymentInstrument": {
      "type": "direct"
    }
  }
}

Parameters

transactionReferencestring[ 1 .. 64 ] characters^[a-zA-Z0-9\-_/!@#$%()*=.:;?\[\]{}~+]*$required
merchantobject(MerchantV2)required
merchant.​entitystring[ 3 .. 32 ] characters^([a-zA-Z0-9\- ]*)$required

Used to route the request in Access Worldpay, created as part of on-boarding.

Example: "default"
instructionobject(InstructionV2)required

Object that contains the payment type and details.

instruction.​methodstringrequired

Type of payment method

Value"alipay_cn"
Discriminator
instruction.​valueobject(Value)required

The value of the payment.

instruction.​value.​amountinteger(int64)[ 1 .. 2147483647 ]required

The amount in the lowest denomination of the currency e.g. pennies for GBP, cents for USD.

Example: 12
instruction.​value.​currencystringrequired
Enum"AED""AFN""ANG""AOA""ARS""AUD""AWG""AZN""BAM""BBD"
instruction.​narrativeobject(NarrativeBase)required
instruction.​narrative.​line1string[ 1 .. 24 ] characters^[a-zA-Z0-9-., ]*$required

The description shown on your customer's bank statement for the payment.

Example: "MindPalace"
instruction.​paymentInstrumentobject(AlipayCnInstrumentV2)required
instruction.​paymentInstrument.​typestringrequired

Type of instruction

Value"direct"
instruction.​paymentInstrument.​languagestring

Your customer's language.

Enum"aa""ab""ae""af""ak""am""an""ar""as""av"
instruction.​resultUrlsobject(ResultUrlsAlipay)required
instruction.​resultUrls.​cancelstring

The URL your customer is redirected to, after a cancelled payment outcome.

Example: "https://worldpay.com/cancel"
instruction.​resultUrls.​failurestringrequired

The URL your customer is redirected to, after a failed payment outcome.

Example: "https://worldpay.com/failure"
instruction.​resultUrls.​pendingstringrequired

The URL your customer is redirected to, after a pending payment outcome.

Example: "https://worldpay.com/pending"
instruction.​resultUrls.​successstringrequired

The URL your customer is redirected to, after a successful payment outcome.

Example: "https://worldpay.com/success"
instruction.​deviceDataobject(DeviceData)
instruction.​customerobject(CustomerWithName)

Response

Successful request response

  • an HTTP code 201
  • a paymentId which is unique to the payment - we recommend storing the "id", as you can use it to manage the payment later
  • a QR Code in Base64 format to display to your customer to complete the payment
  • a link to query the payment status
  • an object which will give flow information such as method (e.g. wechatpay) and type (direct)
  • a commandId generated by us identifying a single merchant interaction (e.g. cmdYNdIHBPJwbkjLiykzTx0)

Testing

All requests return the same encoded QR code, allowing you to test the synchronous response and the embedding of the QR code image within your checkout page.

Following a short delay test payments will automatically update to authorize once you receive the successful payment response.

Example Response

{
  "paymentId": "HZ75WBkfRwmD9YzLSZFnQ5v2I5ddQFtUqfQjfH6MtZWlDSUrxrcX5x_wn93uYUZBrpxTgfQTxtQsmy9dE_z-m-zZvrP-LeCRz0uWrqdvJK9lFEMgr042IFWuXU4qz5JB5ruD3eXP8P1s6nqEcRq5d-NwnkVtXPzEhC9FQ_77m3c",
  "lastEvent": "pending",
  "_links": {
    "self": {
      "href": "https://try.access.worldpay.com/apmPayments/HZ75WBkfRwmD9YzLSZFnQ5v2I5ddQFtUqfQjfH6MtZWlDSUrxrcX5x_wn93uYUZBrpxTgfQTxtQsmy9dE_z-m-zZvrP-LeCRz0uWrqdvJK9lFEMgr042IFWuXU4qz5JB5ruD3eXP8P1s6nqEcRq5d-NwnkVtXPzEhC9FQ_77m3c"
    }
  },
  "_actions": {},
  "redirect": "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",
  "paymentInstrument": {
    "method": "wechatpay",
    "type": "direct"
  },
  "commandId": "cmdEy5vwB0krLe9eMwAcE66c0"
}

Errors

Check out our API reference for the full error code schema.

Manage your WeChat Pay payment