mcp-spec-check Tool for Model Context Protocol Migration
July 12, 2026
The mcp-spec-check utility audits Model Context Protocol (MCP) servers for compatibility with the upcoming 2026-07-28 stateless core specification. The update removes the initialize handshake and introduces required routing headers and multi-round-trip request patterns.
HOW THIS AFFECTS YOU
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builderYou must audit your MCP servers to ensure they support the stateless core before support windows expire.