# MCP went stateless: Is your AWS MCP server deployment well-architected?

DevFeed: [MCP went stateless: Is your AWS MCP server deployment well-architected?](<https://devfeed.tech/articles/mcp-went-stateless-is-your-aws-mcp-server-deployment-well-architected-4647.md>)

Original publisher: [Read original article](<https://aws.amazon.com/blogs/architecture/mcp-went-stateless-is-your-aws-mcp-server-deployment-well-architected/>)

Author: Anand Komandooru

Published: 2026-09-01T13:09:19Z

Content type: article

Language: en

Sources: [AWS Architecture Blog](<https://devfeed.tech/sources/aws-architecture-blog.md>)

Topics: [Model Context Protocol](<https://devfeed.tech/topics/model-context-protocol.md>), [Deployment](<https://devfeed.tech/topics/deployment.md>), [schema-evolution](<https://devfeed.tech/topics/schema-evolution.md>), [Amazon Bedrock](<https://devfeed.tech/topics/amazon-bedrock.md>)

Tags: [amazon-bedrock](<https://devfeed.tech/tags/amazon-bedrock.md>), [announcements](<https://devfeed.tech/tags/announcements.md>), [aws](<https://devfeed.tech/tags/aws.md>), [best-practices](<https://devfeed.tech/tags/best-practices.md>), [deployment](<https://devfeed.tech/tags/deployment.md>), [mcp](<https://devfeed.tech/tags/mcp.md>), [mcp-server](<https://devfeed.tech/tags/mcp-server.md>), [observability](<https://devfeed.tech/tags/observability.md>)

## AI overview

The article explains MCP's move to a stateless core and how it simplifies AWS MCP server deployments by removing the need for sticky sessions and shared session stores. It maps the MCP 2026-07-28 specification to AWS Well-Architected Agentic AI Lens practices and recommends migration.

## Source excerpt

On July 28, 2026, MCP made its protocol core stateless, removing the initialize handshake and session header. This post maps the MCP 2026-07-28 specification to the AWS Well-Architected Agentic AI Lens, pillar by pillar, and shows why the stateless design lets you delete the sticky sessions and session stores your MCP servers needed on AWS.