AI Agent Protocols
Properties
created
21.02.2025, 15:01
modified
01.08.2026, 11:03
published
Empty
sources
What are AI agent protocols?
topics
Agent Protocols
authors
Jakub
ai-assisted
Yes
AI agent protocols establish standards of communication among artificial intelligence agents and between AI agents and other systems. These protocols specify the syntax, structure and sequence of messages, along with communication conventions such as the roles agents take in conversations and when and how they respond to messages.
# Context Protocols
- Model Context Protocol - The only well-established context protocol published by Anthropic
- Github:
modelcontextprotocol/python-sdk
- 4.7k stars
- Github:
modelcontextprotocol/python-sdk
# Agent Protocols
- A2A Protocol
- a2aproject/A2A
- 20k stars
- a2aproject/A2A
- Agent Protocol - Common interface for interacting with AI agents
- Div99/agent-protocol
- 1.1k stars
- Div99/agent-protocol
- Agent Communication Protocol
- i-am-bee/acp
- 866 stars
- Deprecated
- i-am-bee/acp
# Agent-User Protocols
- AG-UI - The Agent-User Interaction Protocol
- Open, event-based protocol standardizing how AI agents connect to user-facing applications (~16 event types, transport-agnostic)
- ag-ui-protocol/ag-ui
# Payment Protocols
- Payment protocols facilitating payments for AI agents