Crypto Subscriptions API - Accept cryptocurrency subscriptions on your website
Stripe: Apple Pay - One-touch payment on iOS
Buy it on Pinterest - Buy things directly on Pinterest.
Shopify Buy Button - Turn any website into an online store
Payoneer - Whether making international payments, receiving funds, managing your digital business, or accessing capital, Payoneer opens your business up to the world.
Sign2Pay - Secure mobile payments with your signature.