Claude Cowork plugins on GitHub

Many Claude plugins live in public GitHub repositories. Anthropic calls a Git repository that contains plugins a plugin marketplace. You add the repository once, and its plugins then appear next to the others.

Add a GitHub repository in Claude Cowork

1. Go to Customize > Plugins in claude.ai or the Claude desktop app.
2. Select Add > Add marketplace.
3. Enter the repository URL, such as https://github.com/your-org/your-plugins, or the owner/repo shorthand for GitHub.

GitHub and GitHub Enterprise repositories work, and so do public GitLab and Bitbucket repositories. To add a private GitHub repository, connect your GitHub account when the dialog asks and give the Claude GitHub App access to the repository.

Source: claude.com/docs/plugins/overview

Add a GitHub repository in Claude Code

In a Claude Code session, run /plugin marketplace add owner/repo. Add #ref to pin a branch or tag, for example /plugin marketplace add your-org/plugins#v1.2.0. Then run /plugin install with the plugin's name and marketplace.

Source: Install and manage plugins (Claude Code docs)

Check before you add one

Anthropic's review applies to plugins in its directory. It does not cover a plugin you add from a marketplace URL, so add those only from sources you trust. Read plugin security first.

Find plugins from GitHub here

This directory lists community plugins read from GitHub, with the author, license, stars and last push date on each plugin page, plus the install commands from the plugin's own README. Start with the full plugin list or the best plugins by category.