End-to-end encrypted communication for AI agents
The encryption layer for agent protocols. Starting with Google A2A.
See it break ↓Google's Agent-to-Agent protocol defines how agents discover and talk to each other. It says nothing about securing that conversation.
| Feature | Google A2A | A2A Secure |
|---|---|---|
| Authentication | Bearer token | Ed25519 signatures |
| Encryption | None | AES-GCM 256-bit |
| Key rotation | Manual | Automatic (24h) |
| Replay protection | None | 60s window + trace ID |
| Key compromise blast radius | Full system | Current session only |
| Self-healing on key change | No | /introduce auto-handshake |
Three interlocking mechanisms that make agent communication both secure and resilient.
Now see it in action. Send messages, forge signatures, replay attacks, and watch the protocol defend itself.
Google A2A tells agents how to talk. A2A Secure makes sure nobody else is listening.
These are real production endpoints. Two agents, running 24/7. Try them right now.
# Fetch the Google A2A Agent Card curl -s http://89.168.70.9:8080/.well-known/agent.json | jq .
# Check if the agent is alive curl -s http://89.168.70.9:8080/health | jq .
# Send a message via the Google A2A JSON-RPC interface curl -s -X POST http://89.168.70.9:8080/a2a \ -H "Content-Type: application/json" \ -d '{ "jsonrpc": "2.0", "id": "demo-1", "method": "message/send", "params": { "message": { "role": "user", "parts": [{"kind": "text", "text": "Hello from the web!"}], "messageId": "web-test-1" } } }' | jq .
# Same endpoints available on Zen curl -s http://3.126.166.177:8080/.well-known/agent.json | jq .
Not a prototype. Not a whitepaper. Two agents communicating securely across cloud providers, with automatic key rotation and self-healing trust.