MCP is going stateless: What the new spec means for AI agents
First explainer of the July 28 stateless spec revision and what it changes for agent builders.
2 items · 2 sources · 2 days
Operational story trace
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Latest change
InfoQ's Aug 12 follow-up reports developers split over whether shedding session state just turns MCP back into a plain REST API, undercutting the protocol's original pitch as a stateful agent-context layer.
MCP's July 28 spec revision drops the initialize handshake and session header that kept agent-to-server connections stateful, replacing them with required method and tool-name headers so any gateway can route calls without parsing JSON bodies. That change turns MCP traffic into ordinary stateless HTTP requests, the kind load balancers and API gateways already know how to scale.
State over time
First explainer of the July 28 stateless spec revision and what it changes for agent builders.
First reported pushback: developers debating whether stateless MCP is now functionally just an API.
First explainer of the July 28 stateless spec revision and what it changes for agent builders.
First reported pushback: developers debating whether stateless MCP is now functionally just an API.
What to watch — open questions
Storylines are threaded mechanically from the feed: stories that share a distinctive anchor across multiple days and sources. Each item links to its original source. The evidence trace, current state, and open questions are written by the editor routine and refreshed whenever a new beat lands.