check_packages
Package check before pip/npm install (paid, x402)
Before your agent runs pip install or npm install, check a package list or a whole lockfile (requirements.txt, poetry.lock, uv.lock, Pipfile.lock, package-lock.json, pnpm-lock.yaml, yarn.lock; one verdict per unique package, with line numbers where the format has them). Per package: does it exist, age, releases, downloads, known vulnerabilities (OSV) for the given or latest version, typosquat and slopsquat signals, install scripts; verdict ok, caution or block with reasons. PyPI and npm. A clean ok is not a guarantee. Costs $0.002 USDC per package on Base via x402: the first call without payment returns the payment requirements; pay with an x402-capable MCP client (_meta['x402/payment']) or call POST https://package-check-qy40.onrender.com/check over HTTP x402. Free trial: the first 50 packages per payer wallet are free; sign as usual, the server verifies the signature and does not settle; the result shows free_trial_remaining. About 50: the counter is in memory and resets on restart.
limitlockfilepackagesinclude_devlockfile_format