https://pay.algovoi.co.uk/pay/v1/index https://pay.algovoi.co.uk/.well-known/agent-card.json https://pay.algovoi.co.uk/pay/v1/negotiate https://pay.algovoi.co.uk/pay/v1/verify/receipt https://pay.algovoi.co.uk/pay/v1/verify/rfc9421