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The open standard that finally solves multi‑agent communication across frameworks
24 min read
2 days ago
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Unlock the secret to seamless AI teamwork: discover how the A2A Protocol lets agents talk, collaborate, and scale like never before.
Summary: Learn about the A2A Protocol, the open standard for how AI agents communicate. See how Agent Cards, tasks, and streaming enable complex multi-agent systems.
Two AI agents coordinate via the A2A Protocol: exchanging structured messages, advertising capabilities through Agent Cards, and tracking task lifecycle states across a multi-agent workflow.
The Multi-Agent Communication Problem A2A Solves
Individual excellence, collective silence. That is the state of most AI agent deployments today. A shipping agent cannot ask an inventory agent a question. A customer support agent has no way to hand work to a returns agent mid-conversation. Agents have gotten remarkably good at their jobs. The problem is that each one is still doing that job alone. That is the multi-agent communication problem the A2A Protocol was built to solve.
Through most of 2025, every agent framework invented its own answer. LangChain did it…