{urls} is about handling URLs in (La)TeX documents, commonly by using the \url macro provided by the {url} or {xurl} and {hyperref} packages.
urls is about handling URLs in (La)TeX documents, commonly by using the \url macro provided by the url and hyperref packages. This tag is more focused on typesetting URLs and formatting them in bibliographies; for setting up links in a document, use the links tag, or hyperref if dealing specifically with that package.
The most common way to produce a URL in LaTeX is to use the \url command, available through the url package. This typesets the URL in typewriter font. hyperref also makes the \url command available, and will convert it to a clickable link. The new package xurl allows a better line breaking for long URLs ...
