siren for Claude Code

io.github.yoavhizkih/siren

MCP server for Siren diagramming — teach AI models to create beautiful diagrams with Siren syntax

client:Claude Code transport:stdio runtime:npm

Install siren in Claude Code

run in your project directory

claude mcp add siren -- npx -y siren-mcp

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