FabTally Utility Belt for Grok
io.github.zvmzaretsky/utility-belt
13 deterministic agent utilities: timezone, cron, RRULE, currency, regex, diff, hashing & more.
client:Grok
transport:streamable-http
tools:13
Install FabTally Utility Belt in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"utility-belt": {
"type": "http",
"url": "https://belt.fabtally.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