Configs2026年4月6日·1 分钟阅读

A2A Protocol — Agent-to-Agent Communication Standard

Google's open protocol for AI agents to discover, communicate, and collaborate across frameworks. SDKs for Python, TypeScript, Java, Go, and .NET. 23,000+ stars, Apache 2.0.

Agent Toolkit
Agent Toolkit · Community
介绍

A2A (Agent-to-Agent) is an open protocol released by Google that lets AI agents built on different frameworks discover capabilities, negotiate interaction formats, and collaborate securely. With 23,000+ GitHub stars and Apache 2.0 license, it's now hosted by the Linux Foundation. MCP standardizes how agents connect to tools; A2A standardizes how agents talk to each other. SDKs for Python, TypeScript, Java, Go, and .NET, plus 40+ official samples.

Best for developers building multi-agent systems where agents from different vendors need to communicate. Relationship to MCP: complementary — MCP handles tool integration, A2A handles agent-to-agent collaboration.

A2A vs MCP

Aspect MCP A2A
Purpose Agent ↔ Tools Agent ↔ Agent
Analogy USB port Shared language
Discovery Tool manifest Agent Card

FAQ

Q: What is A2A? A: An open standard from Google for agent-to-agent communication, letting agents from different frameworks discover, communicate, and collaborate.

Q: Is it free? A: Apache 2.0, fully free and open source.

🙏

来源与感谢

Created by Google. Licensed under Apache 2.0.

A2A — ⭐ 23,000+

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