# Chess DNA (remote · mhmwmgesyguaphniiedp.supabase.co)

Chess ratings explained, an Elo calculator, and any Chess.com or Lichess player's recent games.

- Trust score: 72/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-06

## Components

- remote · `mhmwmgesyguaphniiedp.supabase.co`: 72/100 (this document), [markdown](https://verifymcp.io/servers/app-chessdna-chess-dna/functions-v1-chess-dna-mcp.md), [page](https://verifymcp.io/servers/app-chessdna-chess-dna/functions-v1-chess-dna-mcp)

## Channel facts

- Endpoint: `https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-06.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 73/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 309 tokens (~103/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 3/100
  - Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the Chess DNA MCP server?

Chess DNA is a hosted endpoint at https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http app-chessdna-chess-dna 'https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "app-chessdna-chess-dna": {
      "url": "https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "app-chessdna-chess-dna": {
      "type": "http",
      "url": "https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.app-chessdna-chess-dna]
url = "https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "app-chessdna-chess-dna": {
      "type": "remote",
      "url": "https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add app-chessdna-chess-dna --url 'https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  app-chessdna-chess-dna:
    url: "https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "app-chessdna-chess-dna": {
      "Transport": "http",
      "Url": "https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add app-chessdna-chess-dna -t streamable-http -u 'https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp'
```

### Other

```json
{
  "mcpServers": {
    "app-chessdna-chess-dna": {
      "type": "http",
      "url": "https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-06 (score 72, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-11-05 (score 72)

First indexed and scored.

## MCP tools (3)

### `rating_meaning` (~81 tokens)

What does a chess rating mean?

Explains what a chess rating (Elo, Chess.com or Lichess) means: whether it is good, where it sits among online players, and a link to the full guide for that level. Use for questions like "is 1200 a good chess rating?"

Input parameters:

- `rating` (integer, required): The rating, e.g. 1200

### `elo_change` (~94 tokens)

Elo rating change calculator

Calculates how many rating points a player wins or loses for a win, draw and loss against an opponent, using the Elo formula. Also returns the expected score.

Input parameters:

- `k` (integer): K-factor (default 20; FIDE uses 40 for new players, 20 normally, 10 above 2400)
- `opponent` (integer, required): The opponent's rating
- `rating` (integer, required): The player's rating

### `recent_games` (~98 tokens)

A player's recent games

Summarizes a player's recent public games on Chess.com or Lichess: wins, draws and losses, rating trend, results by colour, and most played openings. Links to a free Chess DNA analysis of the player's strengths and weaknesses.

Input parameters:

- `count` (integer): How many recent games (default 30)
- `site` (string): Which site (default chesscom)
- `username` (string, required): Chess.com or Lichess username

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/app-chessdna-chess-dna/functions-v1-chess-dna-mcp#diagnostics

## Score history

- 2026-11-06: 72
- 2026-11-05: 72

## Common questions

### What is the Chess DNA MCP server?

Chess DNA is an MCP server listed in the public MCP registry as app.chessdna/chess-dna. Chess ratings explained, an Elo calculator, and any Chess.com or Lichess player's recent games. This page covers its hosted endpoint (https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp).

### Is the Chess DNA MCP server safe to use?

Chess DNA scores 72 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Chess DNA MCP server expose?

Chess DNA exposes 3 tools: rating_meaning, elo_change, recent_games. Their descriptions and schemas cost roughly 273 tokens of context every time the server is loaded.

### Does the Chess DNA MCP server require authentication?

No. We connected to Chess DNA without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Chess DNA MCP server still maintained?

Chess DNA is still listed as active in the MCP registry. We last reached this channel on 6 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What did VerifyMCP test on the Chess DNA MCP server?

VerifyMCP ran 13 checks on Chess DNA, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://mhmwmgesyguaphniiedp.supabase.co/functions/v1/chess-dna-mcp
- Website: https://chessdna.app/
- Changelog RSS feed: https://verifymcp.io/servers/app-chessdna-chess-dna/functions-v1-chess-dna-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/app-chessdna-chess-dna/functions-v1-chess-dna-mcp/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/app-chessdna-chess-dna/functions-v1-chess-dna-mcp.json
- HTML version of this page: https://verifymcp.io/servers/app-chessdna-chess-dna/functions-v1-chess-dna-mcp