GravityHub Directory

About GravityHub Directory

What this is

A community-curated, GitHub-verified directory of plugins, skills, and MCP servers — starting with Google Antigravity, built to extend to other AI tool ecosystems over time. Every listing links back to its real GitHub repository. We don't republish or rehost anyone's content — the directory is an index with attribution, not a mirror.

How verification works

When a listing is submitted or seeded, we fetch its repository metadata and manifest file (plugin.json, marketplace.json, or SKILL.md) over the GitHub API and parse it as plain data — JSON parsing and YAML-frontmatter parsing only. We never execute, install, or run anything from a submitted repository. A listing is marked ✅ Verified when:

  • its manifest parses without errors,
  • the repository isn't archived, and
  • it's been pushed to within the last 365 days.

For MCP servers specifically — which don't ship an Antigravity-style manifest — "verified" means the repository exists, isn't archived, and is recently active.

What "verified" does not mean

The verified badge is not a security or malware scan. It confirms structural validity and freshness only. We also run a basic heuristic check for listings whose primary content looks like an installer or binary rather than plain manifest/markdown files — those get held for manual review rather than auto-published, but this is a heuristic, not a guarantee. Always review any repository yourself before installing or running its contents, the same way you would for any third-party code.

Voting and submissions

Anyone can sign in with GitHub to upvote a listing or submit a new one. Submissions go through the same live verification described above before appearing publicly; ones that need a human look are held rather than rejected outright.

Attribution

Seed listings were sourced from public GitHub topic pages, the official Model Context Protocol reference list, and direct vendor knowledge — never scraped or republished wholesale from another directory. Where a listing was found via a specific community resource, that source is noted on the listing itself.