MCPVault is an independent, quality-focused directory of MCP (Model Context Protocol) servers, built for developers who are connecting AI agents like Claude, ChatGPT, Cursor, and Windsurf to real tools and data.
Why it exists
MCP is the "USB-C for AI agents": an open protocol (created by Anthropic, donated to the Linux Foundation, adopted by OpenAI, Google, and Microsoft) that lets any AI client talk to any tool server. The ecosystem exploded to tens of thousands of public servers, but discovery is broken. Existing directories are either enterprise platforms or raw data dumps. You cannot tell which servers are maintained, which ones actually start, or which clients they work with.
The directory
MCPVault auto-ingests MCP servers from GitHub (5,000+ live, refreshed nightly) and enriches each listing with:
- Quality grade (A to F) based on recency, adoption, license, and documentation signals.
- Staleness signals: last commit date, archived status.
- Install command, extracted from the README and copy-paste ready.
- Client compatibility: Claude Desktop, Claude Code, Cursor, Windsurf, VS Code, Zed, Cline, ChatGPT.
- Tool-level pages: every tool a server exposes gets its own indexed page (26,000+ and growing).
Live verification (the differentiator)
Most directories check that a link resolves. MCPVault actually runs the server: the verification harness spawns it in a sandbox (npx/uvx runners only) and requires a real MCP stdio handshake, initialize followed by tools/list. Servers that pass earn the "Verified & Working" badge and a do-follow website link. Verification is re-checked weekly; if a server stops responding, the badge lapses automatically. The badge state is live everywhere it is embedded.
Claiming (free)
Auto-ingested listings start as minimal "stale" listings with a clear call to action: is this your MCP server? Claim it. Maintainers sign in with GitHub, prove push access to the repo, and take control: edit the description, category, topics, compatibility flags, install command, and homepage, and upload a logo. One account can manage multiple servers.
Verification (free during early access)
Claimed servers can request verification. Two checks: the server must pass the live MCP handshake, and the MCPVault badge must be visible in the repo README or project site. Both are re-checked on every run. The badge is earned, never bought, and that stays true permanently.
Embeddable badges
Every server gets a status-aware SVG badge (Listed / Claimed / Verified) with light and dark variants, plus ready-made README and HTML snippets. Badges always reflect the current status.
Pricing
- Free: full directory, search, tool pages, claiming, listing editing, logo upload.
- Verified badge: free during early access (paid tier planned later; early verified servers keep the badge as long as they keep passing).
- Sponsored / featured placement: planned, not yet live.
Tech
Built on Next.js, Supabase, and Vercel (EU region). GitHub OAuth for authentication. No tracking-heavy nonsense.
