P402.io

P402.io provides the foundational infrastructure for commerce between AI agents. It's a protocol and suite of tools designed to handle the secure, intelligent, and auditable exchange of value in a world where autonomous AI systems need to transact with each other. At its core, P402.io manages the entire 'Agent-to-Agent' (A2A) payment rail, ensuring that requests between agents are verified, costs are controlled, and every transaction is settled transparently on a blockchain layer.

What makes P402.io stand out is its focus on the practical economics of running AI agents. Its 'Logic Guard' auditor detects financial inefficiencies like redundant loops and model waste in real-time. The system uses semantic caching to intercept duplicate requests, saving on downstream API costs. Crucially, every payment is not just a transaction but an auditable event. Each step—from the initial EIP-712-signed mandate to the final on-chain settlement proof on Base L2—is cryptographically verifiable, creating a complete trail of reasoning and policy checks.

This tool is built for developers and enterprises building sophisticated, multi-agent AI systems where cost, security, and auditability are non-negotiable. If you're orchestrating a workflow where one AI agent needs to pay another for a service—like a research agent hiring a data analysis agent—P402.io provides the secure plumbing to make that happen without financial leakage or opaque billing. It's for teams that need their AI infrastructure to be as accountable and settlement-ready as their traditional financial systems.