PacletSites
gives the list of all paclet sites known to your system.
Details

- Functions like PacletInstall and PacletFindRemote will look for paclets on all sites in PacletSites[].
- PacletSiteRegister and PacletSiteUnregister are used to add and remove sites.
- Use PacletSiteUpdate to download and cache the latest information about what paclets are available.
Examples
Wolfram Research (2020), PacletSites, Wolfram Language function, https://reference.wolfram.com/language/ref/PacletSites.html.
Text
Wolfram Research (2020), PacletSites, Wolfram Language function, https://reference.wolfram.com/language/ref/PacletSites.html.
CMS
Wolfram Language. 2020. "PacletSites." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/PacletSites.html.
APA
Wolfram Language. (2020). PacletSites. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/PacletSites.html