Ecosyste.ms: Packages

An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

npmjs.org "closed ports" keyword

singleportscanner 1.0.1
Learn a port status for open/close
2 versions - Latest release: over 1 year ago - 1 dependent package - 10 downloads last month - 1 maintainer
Top 6.6% on npmjs.org
node-port-scanner 3.0.1
Lean JavaScript port scanner for open/closed ports
11 versions - Latest release: about 3 years ago - 5 dependent packages - 15 dependent repositories - 1.63 thousand downloads last month - 7 stars on GitHub - 1 maintainer