Open Source

Open specifications for multi-agent systems — coordination, identity, and context at the boundary of agent interactions.

MACP — Multi-Agent Coordination ProtocolThe open standard for coordinating autonomous AI agents. Five coordination modes, deterministic replay, capability-based security, and a Rust reference runtime.
AITP — Agent Identity & Trust ProtocolThe open standard for agent-to-agent trust. Self-certifying identities, a four-message mutual handshake, and signed, capability-scoped Trust Context Tokens — with a Rust reference implementation.
ACDP — Agent Context Distribution ProtocolThe open substrate for agent knowledge: publish signed, content-addressed contexts; discover them across registries; verify them locally with no shared trust authority.