REAPP Protocol
An open-source, Stellar-native agentic payment rail that bridges Google's Agent Payments Protocol (AP2) with x402 HTTP payment settlement — enabling AI agents to execute bounded, auditable payments in USDC or XLM without ever holding user private keys.
The Convergence Thesis
The convergence of autonomous AI agents and programmable money is the defining infrastructure challenge of 2026. AI agents are being trusted with real commercial tasks — booking, purchasing, contracting — yet the payment layer beneath them remains built for humans: slow card flows, custodial wallets, and no machine-readable authorization chain.
Three production-ready standards have independently matured to the point where composition is now possible. REAPP is that composition layer.
The Trust Vacuum
The result of the current landscape is a trust vacuum: agents either hold full wallet control — a catastrophic failure mode — or request human approval for every micropayment, defeating the purpose of autonomy entirely.
REAPP closes this gap with a three-part answer:
- x402stellar — Stellar-native HTTP payment protocol with 2–5 second settlement, gasless for clients, $0.001 minimum, XDR-native transactions
- Google AP2 — cryptographic mandate chain where users sign bounded IntentMandates or CartMandates defining exactly what an agent is authorized to purchase
- Soroban Smart Accounts — programmable on-chain policy enforcement with spending limits, role-based access, and per-session budgets enforced in audited smart contracts without key custody
Standards Convergence Timeline
The window to establish Stellar as the canonical settlement layer for AP2-authorized agent commerce is open now and will close as EVM-native tooling matures.