Last updated: 26 June 2026 | 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 type	Recurring	Reversals	Partial reversals	Disputes	Auth and settlement (sale)
Digital wallet	❌	✅	✅	❌	✅

Maximum transaction value: 50,000 CNY
Maximum transaction per consumer wallet per day: 100,000 CNY

Acceptance currencies

Currency	Currency codes
Australian Dollar	AUD
Canadian Dollar	CAD
Chinese Yuan	CNY
Euro	EUR
Hong Kong Dollar	HKD
Japanese Yen	JPY
New Zeland Dollar	NZD
Pound Sterling	GBP
US Dollar	USD
Singapore Dollar	SGD

Get started

Use our API reference and set your headers.

Request

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

Apply APM payment details directly using our APMs API, or use our Components SDK to create a session.

Example requests

Collect the APM details and send an API request with these details to create a payment.

application/json

{
  "transactionReference": "Memory265-13/08/1876",
  "orderReference": "apm-order-12345",
  "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

For Bizum transactions, please follow this extra regex [a-zA-Z0-9]{4,12}

orderReferencestring[ 1 .. 64 ] characters^[a-zA-Z0-9\-_/!@#$%()*=.:;?\[\]{}~+]*$

A reference that you can apply to one or more payments according to your business needs. You may reuse the same reference across multiple payments, for example where:

the total amount for a single order is split across multiple payments
you use a single reference for each payment in a recurring agreement or split shipment scenario

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"ach"

Discriminator

instruction.valueobject(ValueV2)required

The value of the payment.

instruction.value.currencystringrequired

The supported ISO 4217 currency codes.

Enum"AED""AFN""ANG""AOA""ARS""AUD""AWG""AZN""BAM""BBD"

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: 1234

instruction.narrativeobject(NarrativeV2)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(AchPaymentInstrumentV2)required

instruction.paymentInstrument.typestringrequired

Enum"direct""checkout"

Discriminator

instruction.paymentInstrument.accountTypestringrequired

Account type.

Enum"checking""savings""corporate""corporateSavings"

Example: "checking"

instruction.paymentInstrument.accountNumberstring[ 1 .. 17 ] characters^[0-9]*$required

Account number of direct debit account.

Example: "123456789"

instruction.paymentInstrument.routingNumberstring= 9 characters^[0-9]*$required

Routing number of direct debit account.

Example: "123456789"

instruction.paymentInstrument.checkNumberstring[ 1 .. 15 ] characters^[0-9]*$

Check number of the direct debit account.

Example: "123456789"

instruction.paymentInstrument.companyNamestring[ 1 .. 40 ] characters

Company name if a corporate account.

Example: "Joe Plumbing Ltd."

instruction.paymentInstrument.billingAddressobject(AchBillingAddress)required

instruction.paymentInstrument.billingAddress.address1string[ 1 .. 80 ] charactersrequired

First line of the address.

instruction.paymentInstrument.billingAddress.address2string[ 1 .. 80 ] characters

Second line of the address.

instruction.paymentInstrument.billingAddress.address3string[ 1 .. 80 ] characters

Third line of the address.

instruction.paymentInstrument.billingAddress.postalCodestring[ 1 .. 15 ] charactersrequired

Postal code.

instruction.paymentInstrument.billingAddress.citystring[ 1 .. 50 ] charactersrequired

City.

instruction.paymentInstrument.billingAddress.statestring[ 1 .. 30 ] characters

State code of the billing address in ISO 3166-2 format.

Example: "US-OH"

instruction.paymentInstrument.billingAddress.countryCodestringrequired

The supported ISO 3166-1 alpha-2 country codes.

Enum"AD""AE""AF""AG""AI""AL""AM""AN""AO""AQ"

instruction.customerobject(CustomerDetailsAch)required

instruction.customer.emailstring[ 1 .. 128 ] characters^(.+@.+\..+)?$

Your customer's email address.

Example: "customer@example.com"

instruction.customer.firstNamestring[ 1 .. 22 ] charactersrequired

Your customer's first name.

instruction.customer.lastNamestring[ 1 .. 22 ] charactersrequired

Your customer's last name.

instruction.customer.customerIdstring[ 1 .. 15 ] characters[a-zA-Z0-9]*

Your unique reference for the customer so that the 'pay faster next time' function can be used during checkout. This allows your customer's chosen bank to be stored for their next payment.

Example: "44528abcd"

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"
}

Schema

paymentIdstring

The identifier of the payment resource.

lastEventstring

Enum"authorized""cancelFailed""cancelled""cancelRequested""sentForSettlement""sentForAuthorization""settlementFailed""chargebackReversed""chargedBack""disputeExpired"

_linksobject(Links)

Links to resources related to the request.

_actionsobject(ActionsV2)

redirectstring

The URL to redirect your customer to, or a QR code in Base64 to show to your customer, in order to complete the transaction.

commandIdstring

An action ID generated by us, identifying a single merchant interaction.

Example: "cmdYNdIHBPJwbkjLiykzTx0"

paymentInstrumentAll others (object) or PayPal (object) or SEPA DD (object) or Klarna (recurring) token (object)(PaymentInstrument)

Payment instrument details for the payment response.

One of:

Payment instrument for: ACH, Alipay China, Alipay Hong Kong, Alipay Plus, BANCOMAT Pay, Bancontact, Bizum, BLIK, EFT, Euteller, iDEAL guest, iDEAL recurring, Klarna, Klarna (recurring), Konbini, Multibanco, MyBank, Open Banking, PaysafeCard, Pix, Przelewy24, SafetyPay, Satispay, Swish, Trustly, China UnionPay, WeChat Pay.

transactionCodestring

For Pix payments - display to your customer for them to copy and paste in the Pix app.

For Swish payments - use this value as the {token} in the custom URL scheme: swish://paymentrequest?token={token}&callbackurl={callbackURL}. This will prompt the app to open, allowing your customer to complete their payment.

Example: "IZQ3iUfePwiWiwldJlipl8NGVA7w5IUg"

Errors

Check out our API reference for more responses or error codes.

Simulation

To simulate payment outcomes and trigger webhooks in our Try environment you can send a request prompting our simulator.

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.

You can use magic values in the amount field of your request body to generate specific outcomes. Adding an amount other than the below magic values for refused or erroneous outcomes, will give you a happy path.

Magic value `amount`	Outcome	Description
Any numeric value	`authorized`	You receive a `pending` status in the immediate response and an `authorized` webhook once the payment status changes.
43000	`refused`	You receive a `pending` status in the immediate response and a `refused` webhook once the payment status changes.
32000	error	You get a 500 response.

Next steps

Manage your WeChat Pay payment

WeChat Pay

Why use WeChat Pay?

Feature summary

Acceptance currencies

Get started

Request

Example requests

Parameters

Response

Example response

Schema

Errors

Simulation

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