arcat for Grok
com.arcat/arcat
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client:Grok
transport:streamable-http
tools:4
Install arcat in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"arcat": {
"type": "http",
"url": "https://mcp.arcat.com/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