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package-meta

weiseer/package-meta-mcp
STDIOregistry active
Summary

Pulls package metadata, download stats, and maintainer health signals from npm, PyPI, and Cargo registries without burning through your token budget or hitting rate limits. Instead of having your agent scrape registry pages or parse JSON responses in-context, this server taps into pre-cached snapshots from the weiseer oracle network. The economic pitch is simple: querying registries yourself costs 100 to 1500 times more in tokens and latency than letting this handle it. Useful when you're evaluating dependencies, auditing supply chain risk, or building tooling that needs to check package freshness across ecosystems. Runs via stdio, installs globally with npm, and works out of the box with Claude Desktop and other MCP clients.

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@weiseer/package-meta-mcp

npm/PyPI/Cargo package metadata + downloads + maintainer health. stdio MCP server.

Part of weiseer — AI-agent-native cached oracles.

Install

npm install -g @weiseer/package-meta-mcp

Use with Claude Desktop / Cursor / Cline / Continue / Windsurf

{
  "mcpServers": {
    "package-meta": {
      "command": "npx",
      "args": ["-y", "@weiseer/package-meta-mcp"]
    }
  }
}

Why use this instead of your agent doing it itself

The DIY cost in token-spend, latency, and rate-limit risk is 100-1500x our cost. See the weiseer organization README for the economic argument.

Environment

  • PKG_META_URL — override remote snapshot URL
  • PKG_META_LOCAL_ONLY=1 — skip remote fetch

License

Apache-2.0

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Configuration

PKG_META_URL

Override remote snapshot URL

PKG_META_LOCAL_ONLY

Skip remote fetch

Registryactive
Package@weiseer/package-meta-mcp
TransportSTDIO
UpdatedMay 30, 2026
View on GitHub