# Ladderboard — round-robin ladders and match scores for small clubs (remote · ladder.rowb.app)

Round-robin ladders and match scores for small clubs. Players join by QR poster; no app, no account.

- Trust score: 56/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-02

## Components

- remote · `ladder.rowb.app`: 56/100 (this document), [markdown](https://verifymcp.io/servers/app-rowb-ladder-board/ladder.md), [page](https://verifymcp.io/servers/app-rowb-ladder-board/ladder)

## Channel facts

- Endpoint: `https://ladder.rowb.app/mcp`
- Transports: `streamable-http`
- Auth: `required`
- 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 2026-10-02.

- **Endpoint Security**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 62/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 297 tokens (~59/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 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 Ladderboard — round-robin ladders and match scores for… MCP server?

Ladderboard — round-robin ladders and match scores for… is a hosted endpoint at https://ladder.rowb.app/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-rowb-ladder-board 'https://ladder.rowb.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "app-rowb-ladder-board": {
      "url": "https://ladder.rowb.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "app-rowb-ladder-board": {
      "type": "http",
      "url": "https://ladder.rowb.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.app-rowb-ladder-board]
url = "https://ladder.rowb.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "app-rowb-ladder-board": {
      "type": "remote",
      "url": "https://ladder.rowb.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add app-rowb-ladder-board --url 'https://ladder.rowb.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  app-rowb-ladder-board:
    url: "https://ladder.rowb.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "app-rowb-ladder-board": {
      "Transport": "http",
      "Url": "https://ladder.rowb.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add app-rowb-ladder-board -t streamable-http -u 'https://ladder.rowb.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "app-rowb-ladder-board": {
      "type": "http",
      "url": "https://ladder.rowb.app/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.

### 2026-10-01 (score 56, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-29 (score 55, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-28 (score 54, 0)

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

### 2026-09-27 (score 54, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-26 (score 53)

First indexed and scored.

## MCP tools (5)

### `create_ladder` (~48 tokens)

Create or update the club ladder: club name and sport. Returns the join URL (the poster target) that players scan.

Input parameters:

- `club` (string, required)
- `sport` (string)

### `add_player` (~44 tokens)

Register one player by name. Returns a 6-character code and a personal URL so the player can be identified at the courts without an account.

Input parameters:

- `name` (string, required)

### `record_match` (~99 tokens)

Record a finished match result. Identify players by name, numeric id, or 6-character code. Give the set score (sets_a, sets_b) and optionally the games.

Input parameters:

- `games_a` (integer)
- `games_b` (integer)
- `player_a` (string, required)
- `player_b` (string, required)
- `round` (integer)
- `sets_a` (integer, required)
- `sets_b` (integer, required)

### `schedule_match` (~53 tokens)

Put a match on the calendar before it is played. It appears as a pending card in the standings output.

Input parameters:

- `player_a` (string, required)
- `player_b` (string, required)
- `round` (integer)

### `get_standings` (~53 tokens)

The current table (rank, wins, losses, set percentage) plus the single most useful match to play next. Standings are computed with a fixed rule order, so the same results always give the same table.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/app-rowb-ladder-board/ladder#diagnostics

## Score history

- 2026-10-02: 56
- 2026-10-01: 56
- 2026-09-30: 55
- 2026-09-29: 55
- 2026-09-28: 54
- 2026-09-27: 54
- 2026-09-26: 53

## Common questions

### What is the Ladderboard — round-robin ladders and match scores for… MCP server?

Ladderboard — round-robin ladders and match scores for… is an MCP server listed in the public MCP registry as app.rowb.ladder/board. Round-robin ladders and match scores for small clubs. Players join by QR poster; no app, no account. This page covers its hosted endpoint (https://ladder.rowb.app/mcp).

### Is the Ladderboard — round-robin ladders and match scores for… MCP server safe to use?

Ladderboard — round-robin ladders and match scores for… scores 56 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 Ladderboard — round-robin ladders and match scores for… MCP server expose?

Ladderboard — round-robin ladders and match scores for… exposes 5 tools: create_ladder, add_player, record_match, schedule_match, get_standings. Their descriptions and schemas cost roughly 297 tokens of context every time the server is loaded.

### Does the Ladderboard — round-robin ladders and match scores for… MCP server require authentication?

No. We connected to Ladderboard — round-robin ladders and match scores for… without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Ladderboard — round-robin ladders and match scores for… MCP server still maintained?

Ladderboard — round-robin ladders and match scores for… is still listed as active in the MCP registry. We last reached this channel on 2 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://ladder.rowb.app/mcp
- Authorisation metadata: https://ladder.rowb.app/.well-known/oauth-protected-resource/mcp
- Website: https://ladder.rowb.app/
- Changelog RSS feed: https://verifymcp.io/servers/app-rowb-ladder-board/ladder.xml
- Changelog JSON feed: https://verifymcp.io/servers/app-rowb-ladder-board/ladder.json
- HTML version of this page: https://verifymcp.io/servers/app-rowb-ladder-board/ladder