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mcp/harbor
Verified official

21st.dev MCP

v1.0.1

dev.21st/mcp

Find UI components and themes, retrieve code, and generate with hosted 21st AI when enabled.

transport:streamable-http
Website

Target client

run in your project directory 

claude mcp add --transport http mcp https://21st.dev/api/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.