Check npm/PyPI packages exist and that a function or method exists in an exact package version.
Free
One server, in developer tools & repos. Check npm/PyPI packages exist and that a function or method exists in an exact package version.
Developer Tools & Repos
Check npm/PyPI packages exist and that a function or method exists in an exact package version.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.