Chess Eval MCP server

Chess Eval is a remote MCP server that gives an AI agent 2 tools, among them best_line, evaluate_position. It answers at https://chess-eval.x402supply.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 10 September 2026; the last check, on 19 October 2026, succeeded.

Stockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402.

Description as the publisher wrote it.

The 2 tools Chess Eval offers

Add Chess Eval to your AI client

Every block below points at https://chess-eval.x402supply.com/mcp. Pick your client and copy.

claude mcp add --transport http chess-eval https://chess-eval.x402supply.com/mcp

{
  "mcpServers": {
    "chess-eval": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://chess-eval.x402supply.com/mcp"]
    }
  }
}

{
  "mcpServers": {
    "chess-eval": {
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

{
  "servers": {
    "chess-eval": {
      "type": "http",
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

{
  "context_servers": {
    "chess-eval": {
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "chess-eval": {
      "serverUrl": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "chess-eval": {
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

name: Chess Eval
version: 0.0.1
schema: v1
mcpServers:
  - name: Chess Eval
    type: streamable-http
    url: https://chess-eval.x402supply.com/mcp

{
  "mcpServers": {
    "chess-eval": {
      "httpUrl": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "chess-eval": {
      "type": "http",
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "chess-eval": {
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}

goose://extension?url=https%3A%2F%2Fchess-eval.x402supply.com%2Fmcp&type=streamable_http&id=chess-eval&name=Chess%20Eval

Is Chess Eval up right now?

It answered our last check on 19 October 2026 in 347 ms. Over 6 checks since 10 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Chess Eval

Questions about Chess Eval

Is there an official Chess Eval MCP server?

Yes. It is published by x402supply.com and served from chess-eval.x402supply.com, the vendor's own domain: https://chess-eval.x402supply.com/mcp.

How many tools does Chess Eval have?

2, as returned by the server's own tools/list on 11 September 2026: best_line, evaluate_position.

Is Chess Eval down?

It answered our last check on 19 October 2026 in 347 ms. Over 6 checks since 10 September 2026 it answered 6.

How do I add Chess Eval to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://chess-eval.x402supply.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does Chess Eval need an API key?

It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.

Is Chess Eval free?

No: the publisher declares paid use. {"protocols": ["x402"], "price": 0.01, "currency": "USDC", "networks": ["base"], "verified": "live", "priceSource": "live", "checked": 1792414092}

Where this comes from

Publisher: com.x402supply. Endpoint host: chess-eval.x402supply.com. ARD identifier: urn:air:com.x402supply:mcp:chess-eval. First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.