chess-eval

com.x402supply/chess-evalVersion 1.0.1

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

Status

Responds271 msNov 14, 2026, 14:23 UTCAnswered our handshake without sign-in.

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Data from the official MCP Registry, checked by run.zero. How we check

Streamable HTTP

https://chess-eval.x402supply.com/mcpResponds271 msNov 14, 2026, 14:23 UTC

No sign-in

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

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Settings > Connectors > Add custom connector
Name: chess-eval
Remote MCP server URL: https://chess-eval.x402supply.com/mcp

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

code --add-mcp '{"name":"chess-eval","type":"http","url":"https://chess-eval.x402supply.com/mcp"}'

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2 tools

Tools of chess-eval
	Description		Read-only	Idempotent	Open world
`best_line`Play out Stockfish's predicted principal variation as SAN moves with a per-ply eval, re-searching after each ply.	Play out Stockfish's predicted principal variation as SAN moves with a per-ply eval, re-searching after each ply.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared