MCP 2026-07-28 spec: stateless core, coming to Claude
Quick Answer
The MCP 2026-07-28 spec introduces a stateless core for Claude, enhancing scalability by allowing AI agents to connect without dedicated sessions.
Quick Take
This shift enables companies to manage thousands of agents efficiently, improving infrastructure resilience and operational simplicity.
Key Points
- 's first version established a standard for AI model connections.
- Stateless MCP simplifies connections, resembling existing web infrastructure.
- Companies can operate thousands of agents making millions of requests.
- Dedicated sessions for each agent hinder scalability and recovery.
- The new spec aims for practical production-scale implementations.
📖 Reader Mode
~1 min readThe first version of MCP proved that AI models could use a common standard to connect with tools and data. This version is focused on making those connections practical at production scale. A company may eventually operate thousands of agents making millions of requests across databases, internal applications, cloud services, and external APIs. Requiring every agent to maintain a dedicated session with one server creates infrastructure that is harder to scale, recover, and operate. Stateless MCP makes the connection layer behave more like the ordinary web infrastructure companies already understand.
— Originally published at x.com
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