Grok FIDE Laws of Chess law_query
How to: Grok FIDE Laws of Chess law_query
Add FIDE Laws of Chess to Grok
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01
Open .mcp.json (in your project root) and merge this in. Keep any servers already there.
{
"mcpServers": {
"fide-chess": {
"type": "http",
"url": "https://mcp.arxo.io/mcp/fide-chess"
}
}
}-
02
Save the file and restart Grok.
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03
Ask for something law_query does. Grok lists the server's tools on connect and calls law_query itself — you do not invoke it by name.
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04
If nothing happens, check the server is running and that FIDE Laws of Chess's identifier in your config matches the one above exactly.
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
Set these first
FIDE Laws of Chess will not start until these are set, so law_query never becomes available.
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FIDE_CHESS_MCP_CALL_TIMEOUT
Same tool, other clients
This list was read from the server itself, by connecting to it and calling tools/list on 14 October 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.