Agentic Payments: x402 + MPP Two complementary protocols for AI-agent and machine-to-machine payments on Stellar. Pick based on who depends on whom and how often the agent pays. Quick decision | | x402 | MPP Charge | MPP Channel | |--|------|------------|-------------| | Per-request on-chain tx? | Yes (via facilitator) | Yes (Soroban SAC) | No (off-chain commits) | | Needs facilitator? | Yes (OZ Channels) | No | No | | Client needs XLM? | No (fees sponsored) | Optional ( ) | Yes | | Setup complexity | Low | Low | Medium (deploy contract first) | | Best for | Quickest setup, fee-free clients |…