Last Updated: 06 June 2024 | Change Log

WeChat Pay

Coming Soon

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


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
Hong Kong DollarHKD
Japanese YenJPY
New Zeland DollarNZD
Pound SterlingGBP
US DollarUSD
Singapore DollarSGD

Set your headers

Setting your headers is an important part of an API request. The headers represent the meta-data associated with your API request.

Authorization: {your_credentials}
Content-Type: application/json
WP-Api-Version: 2023-06-01
AuthorizationWe use the Authorization header to identify and authenticate you within Access Worldpay. You must use the Authorization header for any request you send to our APM API, unless you are using client certificate authentication over TLS. If you must use this, read our reference guide on Authenticating with SSL/TLS.
Content-TypeWe require the Content-Type header if the request you're sending includes a request body, and if the HTTP method is a POST or a PUT.
WP-Api-VersionWe use the WP-Api-Version header to identify which version of our APM API you are using. You must use the WP-Api-Version header for any request you send to our API.

If you're using both the Content-Type and WP-Api-Version headers, they must match.


Replace {your_credentials} with your base64-encoded Basic Auth username and password. To get your Access Worldpay credentials contact your Implementation Manager.

Take a payment


Example request

    "transactionReference": "Memory265-13/08/1876",
        "entity": "MindPalaceLtd"
            "line1": "Mind Palace Ltd"
            "amount": 500,
            "currency": "CNY"
            "type": "wechatpay",
            "language": "zh",
            "country": "CN",
            "successURL": "",
            "pendingURL": "",
            "failureURL": "",
            "cancelURL": "",
            "transactionTimeOut": 10


ParameterRequired?DescriptionData typeLength
merchantAn object that contains information about the merchant.ObjectN/A
merchant.entityDirect your payment to assist with billing, reporting and reconciliation. This is mandatory for Authentication and Queries.
Contact your Implementation Manager for more details.
StringMust be between 1 and 32 characters.
transactionReferenceA unique reference generated by you that is used to identify a payment throughout its lifecycle. See transaction reference format.StringMust be between 1 to 64 characters.
instructionAn object that contains all the information related to the payment.ObjectN/A
instruction.narrativeAn object that helps your customers better identify you on their statement.ObjectSee our formatting rules
instruction.narrative.line1The first line of the narrative which appears on your customer's statement (If a character is not supported it is replaced with a space.).
See narrative line1 format for more details.
instruction.valueAn object that contains information about the payment transaction.ObjectN/A
instruction.value.amountThe payment amount. This is a whole number with an exponent e.g. if exponent is two, 250 is 2,50. You can find the relevant exponent in our currency table.IntegerN/A
instruction.value.currencyThe payment currency. Refer to the individual APM page for supported currencies.Integer3
instruction.paymentInstrumentAn object that contains information about the payment method.ObjectN/A
instruction.paymentInstrument.typeAn object that contains the payment type and details. It defines which alternative payment method you wish to use. Value is wechatpay.ObjectN/A
instruction.paymentInstrument.languageAn object that contains the language of your customer. Follows ISO 639-1 standard.String2 The country of your customer. Follows alpha 2 ISO 3166-1 standard.Object2
instruction.paymentInstrument.cancelURLWhen your customer cancels a transaction, we redirect your customer to that cancel URL.StringN/A
instruction.paymentInstrument.pendingURLWhen we receive the payment result for a pending payment transaction, we redirect your customer to that pending URL.StringN/A
instruction.paymentInstrument.successURLWhen we receive the payment result for a successful payment, we redirect your customer to that success URL.StringN/A
instruction.paymentInstrument.transactionTimeOutThe time your customer has to complete the payment before timing out, in minutes.Integer3

We suggest you provide the cancelURL, pendingURL and successURL attribute to redirect your customer to, once you have received the payment result.


Successful request response

  • an HTTP code 201
  • an id which is unique to the payment - we recommend storing the "id" as this can be used to manage the payment later
  • a url to redirect your customer to the APM provider to complete the payment
  • a link to query the payment status

Example Response for WeChat Pay

    "paymentId": "nFxASqw-LV9HE_rr1mMONJmqBDeXmnv5dzt9IxAXgXbfpu0O_8mOnTpFSIM9gnTSygCKQgvlwQdUbu5rExIpJA_5Uq2LEGXXAanycRpxfDPNA-E70zIWdnaMb2gJhC8AIhbOkM6xDiVNu90YCXo2snTzi_k1sEOQnKIAJNTW3Qc",
    "lastEvent": "pending",
    "_links": {
        "self": {
            "href": ""
    "_actions": {},
    "url": ""

In case of an error, you can get further information in our error reference.

Next Steps

Manage your WeChat Pay payment