Connections - Protocol Documentation

Protocol	Category	Organization	Status
ACP Agent Communication Protocol	communication	Linux Foundation	active
MCP Model Context Protocol	context	Anthropic	stable
A2A Agent-to-Agent Protocol	coordination	Google	active
AP2 Agent Payments Protocol	payments	Google + 60 Organizations	stable
X402 HTTP-Native Payments	payments	Coinbase	stable
AGUI Agent-Generated UI	interface	ONE Platform	active

Explore the Six Protocols