Credit Card Gateway Integration

My SMM panel is fully functional except for one key piece: native credit-card payments. I’m now ready to accept Visa, MasterCard, and American Express directly on the site and need the gateway wired up end-to-end.

Here’s what I need done:
• Identify and configure a secure, PCI-compliant gateway or aggregator that lets me process all three cards in one integration. I’m open to Stripe, Authorize.Net, Braintree, or any similar API you recommend, provided it supports multi-provider routing.
• Build the front-end payment form (card number, expiry, CVV, etc.) and connect it to the SMM panel’s existing order flow so successful payments automatically trigger service delivery.
• Add webhooks / callbacks for payment status updates (success, failure, chargeback).
• Provide concise setup documentation so I can update keys, toggle test mode, or add pricing tiers without touching code.
• Run sandbox tests with Visa, MasterCard, and AmEx credentials and leave test logs for verification.

Acceptance criteria:
1. A user can complete a purchase with any of the three card brands and see the order marked “Paid” in the panel.
2. Failed or declined transactions show the correct error message and no service is delivered.
3. All sensitive data is tokenized; no card data touches my server.
4. Deployment instructions work on a fresh clone in one pass.

The panel is hosted on standard LAMP, so PHP and MySQL experience is preferred, but if another stack is more efficient for the gateway wrapper, explain the rationale and I’m flexible.

If this sounds straightforward to you, let’s get it integrated and start processing cards.