21st.dev MCP
By 21st.dev · Official
Find and work with React UI components from 21st.dev directly in your coding agent.

Transform visual feedback into structured insights for seamless developer-AI collaboration.
Help your agent use interface annotations as context when making changes to a website. Use it when you can point to a visual problem more easily than describe it. The annotations give your agent concrete context for the element or area you want changed.
Use Agentation to review my annotations on this page. Map each item to a specific change and verify the updated interface.