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.
npm/PyPI/Cargo package metadata + downloads + maintainer health. stdio MCP server.
Part of weiseer — AI-agent-native cached oracles.
npm install -g @weiseer/package-meta-mcp
{
"mcpServers": {
"package-meta": {
"command": "npx",
"args": ["-y", "@weiseer/package-meta-mcp"]
}
}
}
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.
PKG_META_URL — override remote snapshot URLPKG_META_LOCAL_ONLY=1 — skip remote fetchApache-2.0
PKG_META_URLOverride remote snapshot URL
PKG_META_LOCAL_ONLYSkip remote fetch