Show HN: Only 1 of 4,356 reachable MCP servers is ready for the 2026-07-28 spec
Summary
The article discusses the MCP 2026-07-28 spec and how a small open-source tool, mcp-spec-check, is used to gauge readiness of MCP servers. It reports that only 1 of 4,356 reachable servers passes three core checks and highlights a migration to a stateless core with new routing headers. It includes references to documentation, aggregate results, and usage guidance.