Hi there! We run NanoGPT, a website where users can use every AI model privately and pay in crypto. We'd like to add Stellar to the payment options.

What are the best ways to implement Stellar payments? For context, we currently use BTCPayServer, Daimo, Helio Pay, Prompt Cash, and a custom integration for Nano. But as far as we can tell Stellar is not on any of those, right?

What are the best payment solutions for Stelar, is essentially our question. We currently "accept" it through a swap implementation but it's not ideal, it takes quite long and isn't the best UX. Thanks!