SINT

AI agents are now controlling robots, drones, and industrial systems.

But there's no security layer between "the LLM decided to do X" and "X happened in the physical world."

We measured this: 4.8× spread in safety violations across frontier models on identical hardware.

We built the protocol to fix it

two years ago LLMs wrote code.

today they're calling MCP tools, publishing to ROS 2, sending MAVLink commands, unlocking smart-home locks.

we wired up the actuators before we wrote the security model.

published a fix today ↓

Google's UCP lets agents discover and purchase products.

AP2 handles the transactions.

SINT Protocol handles what happens when those agents control the physical infrastructure.

Protocol stack = complete.

EU AI Act high-risk provisions: August 2, 2026

Every humanoid robot = high-risk AI system.

SINT just shipped the compliance module.