I need PayPal, Stripe, and Square switched from “sandbox” to live mode on my site, with everything—from API keys through webhook notifications—configured, tested, and ready for real-money transactions. My priority is speed: the sooner this is running smoothly, the better. When you reply, point me to past projects where you have taken at least one of these three gateways live; concise links or screenshots are fine. Deliverables: • Live, verified integrations for PayPal, Stripe, and Square • Successful test charge on each gateway, recorded in my dashboard • Clear hand-off notes so I can manage keys, webhooks, and refunds without additional help I’ll be on standby to provide existing credentials and to run real-time tests, so we can move quickly.