Show HN: Only 1 of 4,356 reachable MCP servers is ready for the 2026-07-28 spec
A developer has released a tool to check if remote Model Context Protocol (MCP) servers are compatible with the upcoming July 2026 specification update. The analysis of over 4,000 servers reveals that the vast majority are not yet prepared for the transition to a stateless core architecture.
Why it matters
As MCP becomes a standard for AI-agent interoperability, widespread migration failure could disrupt the ecosystem of connected tools and services.
Is your remote MCP server ready for the 2026-07-28 MCP spec release ? Find out in 30 seconds.
npx mcp-spec-check https://your-server.com/mcp Nothing breaks on July 28. That date is when the spec text publishes, not a switch that flips. Version negotiation keeps working and deprecated features live for at least 12 months. This tool measures adoption of the new stateless core, not a countdown to an outage.
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