Existing tools force a choice: accept Bitcoin OR keep your accounting software. payinbtc.me removes that tradeoff. It's the only universal adapter linking 11 accounting platforms (QuickBooks, Xero, Sage) to 15 Bitcoin providers (Strike, BTCPay, Blink). 165 pre-built integrations vs months of custom dev. Add Bitcoin to your existing invoices in 5 minutes, zero workflow changes, no crypto knowledge needed. Instant settlement and ~95% lower fees than cards.