XMR & BTC Payment Integration

My custom-built, PHP multi-vendor marketplace is ready for cryptocurrency checkout and I now need both Monero (XMR) and Bitcoin (BTC) fully integrated. The goal is simple: when a customer pays, every order must instantly reflect “pending” or “completed” across all vendor dashboards, the admin panel, and the public order-tracking page.

You may connect directly to the coin daemons or suggest an API service such as Coinbase, BitPay, CoinGate, or any other solution you trust for reliable confirmations; I’m flexible as long as transactions are securely verified and the workflow stays seamless for buyers and vendors alike.

Deliverables
• End-to-end XMR & BTC checkout flows wired into existing cart, order, and vendor earnings logic.
• Real-time status updates (pending → confirmed) recorded in the database and displayed everywhere an order appears.
• Callback/webhook handling that prevents double-spend and marks unpaid invoices as expired after timeout.
• Clean, well-commented PHP code plus brief setup notes so I can redeploy on staging/production.

I will provide access to the repository, database schema, and a staging server for testing. Once integration passes live-payment tests for both coins, the job is done.