MCPVault
5,000+ MCP servers with quality grades and live testing.
What it does
MCPVault is the independent quality directory for MCP servers. Browse 5,000+ servers with quality grades (A to F), staleness signals, install commands, and client compatibility. Verification is real: we spawn the server and run an actual MCP handshake (initialize + tools/list). Verified servers earn a do-follow link and an embeddable README badge. Maintainers claim their listing with GitHub sign-in in under a minute. Claiming and verification are free during early access.
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Openstatus MCP Health Checker May 2026 · ▲207Test MCP servers like a real AI client, not just a ping
- MSMCPSpec – Ship reliable MCP servers without writing test codeFeb 2026 · light-handle.github.io · ▲7
Hi HN, I've been building MCPSpec, an open-source CLI for MCP server reliability. Record sessions, generate mock servers, catch Tool Poisoning, and fail your CI build when something's wrong — without writing test code. There are ways to validate MCP servers today — the MCP Inspector, ad-hoc SDK scripts, unit tests for server internals — but nothing that handles regression detection, security auditing, mock generation, and CI pass/fail checks in one tool. MCPSpec does that: 1. Record a session against your real server, replay it after changes to catch regressions 2. Generate a standalone…
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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
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