additionalMarketplaces

A Claude Code settings key, read out of the shipped bundle. It was in the build from v2.1.232 and was gone by v2.1.284.

Releases whose published page names additionalMarketplaces.

1. v2.1.232 13 Aug 2026
   additionalMarketplaces settings alias

   additionalMarketplaces now works as an alias for extraKnownMarketplaces in settings files.

   named in this entry, found in this entry's text

2. v2.1.232 13 Aug 2026
   Two new spellings for the marketplace settings keys

   You can now write additionalMarketplaces and allowedMarketplaces as aliases for the older marketplace settings keys.

   named in this entry, found in this entry's text

The earliest release whose published evidence quoted additionalMarketplaces was v2.1.232, 13 Aug 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the settings key does. All settings keys.