The Chess Eval MCP server,
connected in one click.
Stockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402. Connect the official Chess Eval MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Chess Eval to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http chess-eval https://chess-eval.x402supply.com/mcpRun in your terminal, then restart Claude Code.
Chess Eval · https://chess-eval.x402supply.com/mcp
What your AI can do with Chess Eval
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “evaluate_position”: Evaluate a chess position with Stockfish: best move, centipawn/mate score, principal variation, and optional multipv. No mocks — a real sing.”
“Use “best_line”: Play out Stockfish's predicted principal variation as SAN moves with a per-ply eval, re-searching after each ply.”
How secure is the Chess Eval MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Chess Eval holds up.
Official endpoint
Operated by Chess Eval (x402supply.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Chess Eval adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Chess Eval
Choose Chess Eval in the gate directory. No sign-in needed.
Use it anywhere
Chess Eval's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Chess Eval exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
evaluate_position — Evaluate a chess position with Stockfish: best move, centipawn/mate score, principal variation, and optional multipv. No mocks — a real sing
best_line — Play out Stockfish's predicted principal variation as SAN moves with a per-ply eval, re-searching after each ply.
Who runs the Chess Eval MCP server?
The Chess Eval MCP server at a glance
https://chess-eval.x402supply.com/mcpQuestions, answered
Is there an official Chess Eval MCP server?
Yes — Chess Eval operates its own remote MCP server at chess-eval.x402supply.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Chess Eval to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Chess Eval in the directory. No account or sign-in is needed. From then on, Chess Eval's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Chess Eval runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Chess Eval MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Chess Eval in minutes. No credit card required.
Connect more than just Chess Eval
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Chess Eval in: Claude · Claude Code · ChatGPT · Cursor · VS Code