We let an AI agent book a hotel. It came back with 2,882 sats. How an agent registered via L402, paid 21 sats, signed it all with a Nostr key, found Booking.com in our catalog, drove the checkout, and earned bitcoin cashback for its user. Identity = Nostr pubkey. Notifications = NIP-17 DMs. Full story: https://satsback.com/blog/ai-agent-hotel-booking-bitcoin-cashback