· 3 tools
Vendor Claude Code plugins outside Anthropic’s marketplace
Some vendors publish Claude Code plugins from their own marketplaces. Here are the ones we verified and how to install them. The list is generated from our dataset; each entry links to its evidence.
Auth
-
5/5
Clerk
Vendor-published Claude Code plugin (own marketplace) bundling skills + Clerk MCP server
/plugin marketplace add clerk/skills /plugin install clerk@clerk-skills
Background jobs & queues
-
5/5
Inngest
Vendor-published Claude Code plugin (skills + Cloud MCP) plus local Dev Server MCP; not in Anthropic's marketplace
claude mcp add --transport http inngest-dev http://127.0.0.1:8288/mcp -
5/5
Upstash QStash
Vendor plugin bundling skills (incl. upstash-qstash-js) + remote MCP with QStash tools
/plugin marketplace add upstash/skills /plugin install upstash@upstash
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