# Coupons
# Introductions
Weixin Mini Program Card voucher interface supports receiving / viewing / using Official Account AppId created membership cards, tickets, vouchers (including universal cards) in Mini programs. More use methods can refer to Mini Program & card voucher open
# Conditions of Use
At present, only the certification Weixin Mini Program can use the card coupon interface, can refer to guidelines for certification.
# interface
Weixin Mini Program can add card vouchers to users through wx.addCard interface.Through wx.openCard allows the user to select an existing card voucher.