What is the Agent Financial Stack?
The layered infrastructure enabling agents to hold, manage, and spend crypto — wallet infrastructure, key management, policy enforcement, payment protocols, and analytics.
WHY IT MATTERS
Like the web stack, agent finance has layers: key management, wallets (EOA/smart/MPC), policy (spending controls), payment protocols (x402/A2A), and application (agent logic).
The policy layer is critical for safety. Keys provide capability; policy provides constraints. Without it, agents have power without governance.
Understanding layers helps build secure financial systems with each handling specific concerns.
HOW POLICYLAYER USES THIS
PolicyLayer is the spending controls layer — between wallet infrastructure and application, ensuring every transaction passes policy evaluation.