---
title: Protocols
description: Open protocol specifications for agent communication and authentication.
---

# Protocols

WebAgents defines two open protocol specifications for standardized agent interoperability.

- [UAMP](./uamp.md) — Universal Agentic Message Protocol — event-based protocol unifying agent communication across transports, providers, and frameworks
- [AOAuth](./aoauth.md) — Agent OAuth — extension of OAuth 2.0 for agent-to-agent authentication, scoped access, and federated trust
