Back to feed
Dev.to
Dev.to
7/31/2026
Stateless MCP for Beginners

Stateless MCP for Beginners

Short summary

The 2026-07-28 MCP specification revision removed protocol-level sessions, making remote MCP servers stateless and easier to scale behind ordinary load balancers. Application state persists through explicit handles — ordinary values returned by one tool and passed to another — rather than hidden in connection-level session IDs. This gives orchestrators finer control over shared state boundaries across multiple agents.

  • •MCP's 2026-07-28 revision removed protocol sessions, enabling horizontal scaling without sticky routing
  • •Application state is now managed via explicit handles passed between tool calls instead of session IDs
  • •Clients can cache tool definitions and call server/discover without opening a session

Generated with AI, which can make mistakes.

#ai-agents#ai-tools#open-source
Read full article at Dev.to

Is this a good recommendation for you?

Comments

Failed to load comments. Please try again.

Explore more

The original title is "MCP went stateless. Your agent workflow did not."
Dev.to
The original headline is 10 words: "MCP Goes Stateless: What the 2026-07-28 Spec Actually Changes"
Dev.to
Model Context Protocol Adopts Stateless Architecture
Dev.to
The original title is: "MCP spec update: stateless sessions, deprecated features, and migration guide"
Dev.to