Of course I looked at x402 which I believe is a great protocol but not a fan of a) sharing private keys with the agent b) having a human in the loop or c) similar workaround e.g. pre-funded wallets
So I started building out a solution. For my use case it was important to not only have stablecoins but also a fiat rail which is now implemented using Stripe.
Initially I build a mandate system internally but am very glad and big shoutout to the guys at google for AP2 (https://github.com/google-agentic-commerce/AP2) which I ended up using for the scoped payment mandates.
Please do check it out and would appreciate feedback from people building in the space.
Docs: https://docs.delegare.dev Git: https://github.com/delegare/delegare Sandbox: https://app.sandbox.delegare.dev/