21st.dev MCP
By 21st.dev · Official
Find and work with React UI components from 21st.dev directly in your coding agent.
By Clerk · Official skill
Give your coding agent Clerk integration patterns for Next.js applications. The skill covers authentication around middleware, server actions, and framework-specific data flows. Use it when protecting routes or reviewing session handling, supplying the installed framework version, existing Clerk setup, and the pages and server operations that require authentication.
By Auth0 · Official
Give your coding agent Auth0 integration guidance selected for your application framework. The skill detects the project stack and routes to relevant SDK setup, authentication routes, and login flows. Use it when adding authentication or migrating an existing system, supplying your framework and the account and session behavior the application needs.
By Clerk · Official
Give your agent a workflow for testing Clerk authentication with browser test tools. It helps structure checks around sign-in and protected application flows. Use it when adding authentication regression coverage, providing a suitable test environment, the expected user journey, and the Playwright or Cypress setup already used by the project.