Methods of payment Xamarin Form [closed]

I'm currently researching how to integrate payment methods into an application made in Xamarin-Forms, but so far I have not been very successful in my searches, most mobile payment integration services like PagSeguro, MercadoPago, Cielo have documentation only for native apps. Does anyone know of any service that can be integrated with Xamarin or any means of adapting these services? Thanks in advance for your attention.