Show HN: Only 1 of 4,356 reachable MCP servers is ready for the 2026-07-28 spec

Category: devtools

Tags: mcp, protocol-compliance, cli-tool, spec-checking, server-migration

Score: 7.8/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 8)

mcp-spec-check is a black-box CLI tool that probes remote MCP servers to verify readiness for the upcoming 2026-07-28 spec release, focusing on adoption of a stateless core and required routing headers. It stands out by performing a comprehensive ecosystem scan of thousands of live servers, providing clear verdicts and migration links with rigorous validation against reference servers and the official conformance suite. The tool fills a critical niche for server maintainers needing to proactively migrate ahead of a major protocol revision.

Target audience: backend devs, devops, MCP server maintainers

Repository: https://github.com/Roee-Tsur/mcp-spec-check · TypeScript · MIT

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