Complete purchases with a single login or passkey via express checkout.
Your credit card and bank numbers are securely stored by PayPal and are never shared with the merchant.
Newer implementations allow users to invoke checkout natively inside AI chats and research threads, keeping research and payment in one continuous flow.
Check your order total, desired shipping address, and funding source (e.g., linked card, bank, or balance).
E-commerce platforms like Shopify dynamically swap default checkout buttons to "Buy with PayPal" automatically if their browser cookies detect it as your preferred payment method.