Concepts
Core concepts behind the a2x ecosystem and how its components work together.
Architecture
Understand the 5-layer architecture of an a2x agent -- from HTTP routing through transport, request handling, task storage, to AI execution.
A2A Protocol
Learn how agents discover each other and exchange messages using the Agent-to-Agent protocol based on JSON-RPC 2.0.
X402 Payments
How on-chain micropayments work using the X402 protocol -- payment flows, state machines, and USDC settlement on Base.