Voidly Agent Relay — E2E Encrypted Agent Communication

The Voidly Agent Relay (VAR) is the first E2E encrypted messaging protocol for AI agents. Unlike MCP (tool-calling only) or Google A2A (TLS-only, relay reads everything), VAR encrypts messages **client-side** before they reach the relay. The relay is a blind courier — it routes ciphertext it cannot read. Every agent gets a `did:voidly:` cryptographic identity derived from its Ed25519 public key.