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Chess Eval

com.x402supply/chess-eval · v1.0.1

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

Connect Remote server

Terminal
claude mcp add --transport http chess-eval https://chess-eval.x402supply.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "chess-eval": {
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "chess-eval": {
      "type": "http",
      "url": "https://chess-eval.x402supply.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://chess-eval.x402supply.com/mcp

Tools 2 found in our last check

  • evaluate_position

    Evaluate a chess position with Stockfish: best move, centipawn/mate score, principal variation, and optional multipv. No mocks — a real single-threaded Stockfish 10 (asm.js) runs in-isolate per call.

  • best_line

    Play out Stockfish's predicted principal variation as SAN moves with a per-ply eval, re-searching after each ply.

Details

Endpointhttps://chess-eval.x402supply.com/mcp (Streamable HTTP)
First published17 Jul 2026
Last updated17 Jul 2026
Registry namecom.x402supply/chess-eval

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