com.x402supply/chess-eval
chess-eval
Stockfish chess eval: best move, score, principal variation, multipv. $0.005/call via x402.
alive probed 2026-10-05 · HTTP 200
2tools
437tokens in Claude Opus 5.5
457tokens in Claude Code
0.2 %of a 200k context window
233o200k_base estimate
544 msto initialize
493 msto list tools
- Endpoint
- https://chess-eval.x402supply.com/mcp (streamable-http)
- Host
- chess-eval.x402supply.com
- Protocol
- 2025-11-25
- Reports itself as
- chess-eval 0.1.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://x402supply.com
- Registry
- active, updated 2026-07-17 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| evaluate_position | 128 | 55 % |
| best_line | 105 | 45 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 13:53 | alive | 544 ms | 2 | 437 | 233 |
| 2026-10-05 00:23 | alive | 352 ms | 2 | 233 | |
| 2026-10-04 09:59 | alive | 755 ms | 2 | 233 | |
| 2026-10-04 07:53 | alive | 730 ms | 2 | 233 | |
| 2026-10-03 20:33 | alive | 792 ms | 2 | 233 | |
| 2026-10-03 17:50 | alive | 852 ms | 2 | 233 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.x402supply/chess-eval)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.