people · May 21, 2026
Mastra Adds Agent-to-Agent Support for Cross-Framework Multi-Agent Systems
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Mastra introduced Agent-to-Agent support on May 19 2026 for building cross-framework multi-agent systems. Agents can now run A2A agents as subagents or invoke them via the Client SDK using MastraClient with baseUrl and headers. The feature requires @mastra/core@1.33.1 and @mastra/client-js@1.18.1 or later and uses agent cards at .well-known URLs to describe capabilities. Mastra released @mastra/core@1.34.0 on May 18 2026 with additional Bedrock AgentCore deployment support.
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