The MCP ecosystem often has several independent packages implementing the same tool — and "Chess" currently has 9. Every one of them was scanned with the same deterministic engine, so the numbers below are directly comparable: the Trust Score (A–F), the capability blast radius, and how much of the package the scan could actually inspect. They are ranked by score; ties break toward unscoped, longer-established packages.
| Implementation | Package | Trust | Capability | Coverage | Findings | Scanned |
|---|---|---|---|---|---|---|
| Chessbest by PyPI | chess-server
PyPI |
A 100/100 | Minimal | Source | 0 | 2026-07-22 |
| Chess by your-username | chess-mcp-server
npm |
A 100/100 | Minimal | Source | 0 | 2026-07-22 |
| Chess by pipeworx | @pipeworx/mcp-chess
npm |
A 98/100 | Minimal | Source | 1 | 2026-07-22 |
| Chess by iflow-mcp | @iflow-mcp/chess-mcp
npm |
A 98/100 | Minimal | Source | 1 | 2026-07-22 |
| Chess by PyPI | mcp-chess
PyPI |
A 98/100 | Minimal | Source | 1 | 2026-07-22 |
| Chess by yourusername | chess-mcp
PyPI |
A 98/100 | Minimal | Source | 1 | 2026-07-22 |
| Chess by fritzprix | chess-mcp-server
PyPI |
A 98/100 | Minimal | Source | 1 | 2026-07-22 |
| Chess by npm | chess-mcp
npm |
A 92/100 | High | Source | 5 | 2026-07-22 |
| Chess by niklasf | chess
PyPI |
B 85/100 | High | Source | 4 | 2026-07-22 |
A higher-ranked implementation is not "the official one" — ranking reflects only what the deterministic scan found in each published package. Open an implementation to read its individual findings with evidence, its scan history per version, and to grab an embeddable badge. Scores are automated opinions, recomputed on every rescan.