Quantum risk is back in the timeline again, harvest now, decrypt later, tighter qubit estimates, and AI accelerating classical cryptanalysis.
For agentic payments the real target isn’t “the chain dies.” It’s agent identity, spend mandates, and signing keys that authorize money movement.
At MPP32 we’re treating this as a design constraint, not a distant headline:
• Short-lived, scoped, revocable delegated keys + budgets and circuit breakers (blast radius stays small even if a key is compromised later)
• Crypto agility in the authorization layer so we can swap in NIST PQC (ML-DSA signatures / hybrid schemes) for agent spend envelopes without forcing providers or agents onto one protocol
• Local signing are keys never leave the agent machine; we verify, we don’t custody
• Multi-rail so we can ride chains that are already moving toward quantum-safe options Preparation beats panic. The agent economy needs payments that stay unforgeable for years, not just the next model release. Building the universal proxy with that horizon in mind.