How AgentCore Gateway supports the MCP 2026-07-28 spec
Quick Answer
The MCP 2026-07-28 spec introduces a stateless protocol for AgentCore Gateway, enhancing scalability and authorization while maintaining backward compatibility.
Quick Take
Users can seamlessly upgrade without disrupting existing client interactions.
Key Points
- transitions to a stateless protocol, improving scalability on standard HTTP infrastructure.
- New version introduces a governed extensions system and strengthens OAuth 2.0 and OpenID Connect alignment.
- Backward-incompatible changes are implemented with a focus on future compatibility and governance.
- Upgrading to the new protocol is optional and does not affect existing client requests.
- AgentCore Gateway simplifies interactions by eliminating the need for session initialization.
Source Excerpt
The (MCP) published its 2026-07-28 specification, the largest revision since launch: MCP is now stateless, with a governed extensions system and hardened authorization. Learn what changed and how to enable the new version on Amazon Bedrock AgentCore Gateway with a single UpdateGateway call.
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