The standards-based toolkit for Web Components. Generate Custom Elements Manifests, Dev Server, LSP, and MCP for your app or design system
Quick Install
Copy the config for your editor. Some servers may need additional setup — check the README.
Add to claude_desktop_config.json:
{
"mcpServers": {
"cem": {
"command": "go",
"args": [
"run",
"github.com/bennypowers/cem@latest"
]
}
}
}
Run in terminal:
claude mcp add cem go run github.com/bennypowers/cem@latest
Add to .cursor/mcp.json:
{
"mcpServers": {
"cem": {
"command": "go",
"args": [
"run",
"github.com/bennypowers/cem@latest"
]
}
}
}