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90
MCP live MCP 2025-11-25 streamable-http

com.x402supply/chess-eval

com.x402supply/chess-eval

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

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
231ms
last probe
Tools
2
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://chess-eval.x402supply.com/mcp
Score: 90/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
2 tools, 0 resources, 0 prompts returned.
partial 3 or more catalogue items 0/10
2 items in total; 3 or more earns these points.
How to earn +10 points
Expose at least three tools, resources or prompts
Split a catch-all tool into focused ones, or publish your docs and templates as resources and prompts.
Docs →
pass Describes itself 10/10
91 characters; more than 30 earns these points.

Tools · 2

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.

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://chess-eval.x402supply.com/mcp

Cursor or Cline: add to your MCP config:

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