Kann XPayr eine HTML-Krypto-Rechnung direkt per E-Mail an meinen B2B-Kunden senden?
Yes. Setting send_invoice_email to true and passing customer_email on POST /api/v1/payments (or via xpayr_create_payment_session in @xpayr/mcp-server) automatically dispatches a branded HTML invoice with a hosted multi-chain checkout button.