Verify an npm package before installing it. Runs eight checks covering advisories, install scripts, typosquat and combosquat names, scope, repository provenance and maintainer reputation, and answers safe, caution, block or does_not_exist with every reason labelled as fact or heuristic against its source. One call is one verification: the first each day is free, and later ones cost $0.05 in USDC when a wallet is configured.