Refcat for Grok
app.refcat/refcat
Search 1M real UI flows and 3.3M screens from shipped apps, sites, emails and games.
client:Grok
transport:streamable-http
tools:18
Install Refcat in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"refcat": {
"type": "http",
"url": "https://mcp.refcat.app/mcp"
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs