The AI answer we saw
Most leading mobile payment SDKs include a sandbox or test environment. Stripe provides a full-featured test mode with test card numbers, webhook simulation, and error scenario testing. Braintree offers a sandbox environment with simulated transactions and dispute testing. Square and PayPal also provide dedicated sandbox environments. When evaluating, look for sandbox parity with production features, test card coverage for edge cases, and quality of developer documentation to reduce integration time.
Captured during this Readable report run. Answers can vary by AI tool and date.