Original sourceAWS
Summary
AWS announced that its AgentCore Gateway now supports the latest MCP 2026-07-28 spec, maintaining backward compatibility with older clients via version negotiation. When handling stateless requests, the gateway includes structured metadata with each tool call result and can provide TTL and scope hi…
Key points
- Developers building MCP services on AWS can immediately upgrade the network layer to benefit from stateless architecture without handling protocol-level compatibility themselves.
- Rapid adoption of the MCP upgrade by mainstream cloud platforms ensures enterprises can migrate painlessly, accelerating industry uptake of stateless MCP.
- Developers can deploy MCP servers that meet the latest standards on AWS, improving scalability and reducing session management overhead.
- AWS continued to deepen AI agent infrastructure in 2026, and this swift support for the new MCP spec signals its strong commitment to the agent ecosystem.
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