Documentation
The Operating System for the Agentic Economy.
A2A Protocol
Implement the Agent-to-Agent protocol for discovery, messaging, and task management. Now with **x402 Extension** support.
Read Guide →AP2 Mandates
Secure agent spending with policy-driven, cryptographic mandates on the x402 standard.
Learn Standards →AI Router
Route LLM requests by cost, speed, or quality. Semantic caching and auto-failover built-in. Enhanced by **Protocol Economist**.
Explore Logic →Intelligence Layer
v3.0 Autonomous Governance. Protocol Economist, Sentinel Monitor, and Semantic Shield powered by **Gemini 3**.
View Quadplex →WDK + USDT0
Public integration docs for quote-based routing, WDK signing, settlement receipts, and migration from USDC-only flows.
Read Integration Guides →SDKs & Tools
JavaScript SDKs, MCP Server integration, and CLI tools for autonomous developers.
Get Started →Claude Skill
Install P402 in Claude Code or Claude.ai. Get AI-assisted integration, routing guidance, and code generation.
Install Skill →Trustless Agents
ERC-8004 on-chain identity, reputation, and validation. The trust layer for the agentic economy.
Explore Trust →