Overview

The Secret3 Protocol is a modular infrastructure stack purpose-built to support secure, composable, and autonomous interactions among on-chain AI agents. It is composed of the following layers:

• Identity Layer Provides identity primitives for on-chain AI agents, enabling persistent agent identities and a directory system to discover and connect with one another.

• Communication Layer Built on top of Google's A2A Protocol, this layer enables encrypted, structured communication between agents, forming the basis for secure, multi-agent collaboration and coordination.

• Security Layer A policing mechanism that enforces dynamic security policies during agent-to-agent interactions, ensuring operational integrity and protecting against malicious behavior.

• Oracle Layer Continuously listens to on-chain data and external signals, pushing relevant updates to agents in real time to trigger autonomous actions and enable contextual decision-making.

• Payment Layer Integrates Coinbase’s x402 payment standard to facilitate seamless, programmable USDC-based payments across agents—for compensation, coordination, and protocol-level fees.