mpl (Meaning Protocol Layer) is a protocol layer that sits between your AI agents and their tools. It makes every interaction typed, measurable, and provable, with cryptographic audit trails, JSON-schema contracts, quality metrics, and policy enforcement. It is the compliance substrate for production agentic systems, mapping directly to SOX, GDPR, HIPAA, and the EU AI Act.
Compliance and audit substrate for production agentic systems — contracts, quality metrics, and tamper-proof audit trails for MCP and A2A traffic.
mpl is one option in a category that includes MCP (Model Context Protocol), A2A (Agent-to-Agent) , and agent guardrails. Our Compare page has the full side-by-side.