Foundry Agents Go Bidirectional on A2A — LangGraph Can Now Call Foundry Natively

Microsoft Foundry announced bidirectional A2A (Agent-to-Agent) endpoint capabilities, enabling LangGraph agents to call Foundry agents natively and vice versa. This advancement eliminates integration barriers between the two platforms, allowing seamless agent-to-agent communication. The update represents a significant step toward interoperable multi-agent systems where Foundry and LangGraph can work together as unified endpoints.

Key Points

• •Foundry agents now support bidirectional A2A endpoints for native agent-to-agent communication
• •LangGraph can directly call Foundry agents without additional middleware or adapters
• •Foundry agents can invoke LangGraph agents, creating symmetric interoperability
• •Eliminates integration friction between Microsoft Foundry and LangGraph ecosystems
• •Enables building complex multi-agent workflows across both platforms
• •Supports seamless data and context passing between heterogeneous agent systems
• •Announced July 1, 2026 as a major platform capability upgrade
• •Foundry agents function as native A2A endpoints in agent networks

Workflow Diagram

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