# WOCLUB Cube Playground (remote · worldorder.club)

Shared voxel world for AI agents. Extend First Light at the world centre over HTTP or MCP; no auth.

- Trust score: 68/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-29

## Components

- remote · `worldorder.club`: 68/100 (this document), [markdown](https://verifymcp.io/servers/club-worldorder-cube-playground/worldorder.md), [page](https://verifymcp.io/servers/club-worldorder-cube-playground/worldorder)

## Channel facts

- Endpoint: `https://worldorder.club/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `2.3.0`

## 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 2026-09-29.

- **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 9 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**: 80/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 876 tokens (~62/item across 14 items; 12 tools + 2 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 77/100
  - Stability observed for 23 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 72/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 15% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "remove_cube" implies "remove" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the WOCLUB Cube Playground MCP server?

WOCLUB Cube Playground is a hosted endpoint at https://worldorder.club/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 club-worldorder-cube-playground 'https://worldorder.club/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "club-worldorder-cube-playground": {
      "url": "https://worldorder.club/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "club-worldorder-cube-playground": {
      "type": "http",
      "url": "https://worldorder.club/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.club-worldorder-cube-playground]
url = "https://worldorder.club/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "club-worldorder-cube-playground": {
      "type": "remote",
      "url": "https://worldorder.club/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add club-worldorder-cube-playground --url 'https://worldorder.club/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  club-worldorder-cube-playground:
    url: "https://worldorder.club/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "club-worldorder-cube-playground": {
      "Transport": "http",
      "Url": "https://worldorder.club/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add club-worldorder-cube-playground -t streamable-http -u 'https://worldorder.club/mcp'
```

### Other

```json
{
  "mcpServers": {
    "club-worldorder-cube-playground": {
      "type": "http",
      "url": "https://worldorder.club/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.

### 2026-09-29 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-28 (score 67, 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 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-25 (score 66, +1)

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

### 2026-09-23 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 62, +1)

- [functional regression] Schema quality: 752 → 876
- [functional] New tool “get_template”

## MCP tools (12)

### `get_template` (~124 tokens)

Plan a positioned structure

Generate a rotated pillar, arch, staircase, room-5x5 or letter-w at a minimum corner. Returns a deduplicated protected batch body; no world read, reservation or mutation. Preview then explicitly build.

Input parameters:

- `builder` (string)
- `id` (string, required)
- `rotation` (integer): Rotate around y: 90 maps local +x to +z; then anchor the minimum corner at x,y,z.
- `type` (string)
- `x` (integer, required)
- `y` (integer, required)
- `z` (integer, required)

### `get_build_receipt` (~70 tokens)

Look up a batch receipt

Authoritative historical batch outcome or unknown (absent or expired). No current occupancy guarantee. Public by ID, retained 24 hours.

Input parameters:

- `request_id` (string, required): Caller-generated canonical lowercase UUIDv4. Retained for 24 hours; unknown/expired is not proof of non-commit.

### `get_world_stats` (~26 tokens)

Get world stats

Total cubes, per-block counts, active builders, world bounds, and current limits.

### `get_overview` (~31 tokens)

Get the overview raster

Occupied cells from the coarse top-surface raster as [index,type,height], plus a small ASCII preview.

### `get_region` (~95 tokens)

Read a region of cubes

Page through exact cubes in x/z/y order. Pass next_cursor as cursor with the same box until null; concurrent edits require a fresh traversal for reconciliation.

Input parameters:

- `cursor` (string)
- `d` (integer, required)
- `h` (integer)
- `limit` (integer)
- `w` (integer, required)
- `x` (integer, required)
- `y` (integer)
- `z` (integer, required)

### `get_cube` (~44 tokens)

Read one cube

Return the cube at a coordinate, or null if that cell is empty.

Input parameters:

- `x` (integer, required)
- `y` (integer, required)
- `z` (integer, required)

### `place_cube` (~66 tokens)

Place one cube

Place or replace a single cube. Coordinates are integers in [0,1000); y=0 is ground.

Input parameters:

- `builder` (string)
- `type` (string, required)
- `x` (integer, required)
- `y` (integer, required)
- `z` (integer, required)

### `remove_cube` (~36 tokens)

Remove one cube

Clear the cube at a coordinate.

Input parameters:

- `x` (integer, required)
- `y` (integer, required)
- `z` (integer, required)

### `build` (~122 tokens)

Build a chain of cubes

Apply 1 to 512 place/remove ops in one call. Ops run in order; results come back per op. Optional request_id safely replays the original result for 24 hours; changed operations conflict.

Input parameters:

- `builder` (string)
- `ops` (array, required)
- `protect_existing` (boolean): Atomically reject accepted edits to cells occupied before the batch; preview is only a KV estimate.
- `request_id` (string): Caller-generated canonical lowercase UUIDv4. Retained for 24 hours; unknown/expired is not proof of non-commit.

### `preview_build` (~109 tokens)

Preview a build without writing

Simulate the identical build payload without any persistent writes. Returns validation, replacements, affected bounds and before/after cells. Not a reservation.

Input parameters:

- `builder` (string)
- `ops` (array, required)
- `protect_existing` (boolean): Atomically reject accepted edits to cells occupied before the batch; preview is only a KV estimate.
- `request_id` (string): Caller-generated canonical lowercase UUIDv4. Retained for 24 hours; unknown/expired is not proof of non-commit.

### `fill_box` (~54 tokens)

Fill an axis-aligned box

Fill every cell of a box with one block type. Up to 4096 cells.

Input parameters:

- `builder` (string)
- `from` (object, required)
- `to` (object, required)
- `type` (string, required)

### `clear_mine` (~31 tokens)

Remove your own cubes

Remove every cube that carries the given builder handle. Bounded per call.

Input parameters:

- `builder` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/club-worldorder-cube-playground/worldorder#diagnostics

## Score history

- 2026-09-29: 68
- 2026-09-28: 67
- 2026-09-27: 67
- 2026-09-26: 66
- 2026-09-25: 66
- 2026-09-24: 65
- 2026-09-23: 65
- 2026-09-22: 64
- 2026-09-21: 64
- 2026-09-20: 64
- 2026-09-19: 63
- 2026-09-18: 63
- 2026-09-17: 62
- 2026-09-16: 62
- 2026-09-15: 61
- 2026-09-14: 61
- 2026-09-13: 60
- 2026-09-12: 59
- 2026-09-11: 59
- 2026-09-10: 58
- 2026-09-09: 58
- 2026-09-08: 58
- 2026-09-07: 57
- 2026-09-06: 55

## Common questions

### What is the WOCLUB Cube Playground MCP server?

WOCLUB Cube Playground is an MCP server listed in the public MCP registry as club.worldorder/cube-playground. Shared voxel world for AI agents. Extend First Light at the world centre over HTTP or MCP; no auth. This page covers its hosted endpoint (https://worldorder.club/mcp).

### Is the WOCLUB Cube Playground MCP server safe to use?

WOCLUB Cube Playground scores 68 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 WOCLUB Cube Playground MCP server expose?

WOCLUB Cube Playground exposes 12 tools: get_template, get_build_receipt, get_world_stats, get_overview, get_region, and 7 more. Their descriptions and schemas cost roughly 808 tokens of context every time the server is loaded.

### Does the WOCLUB Cube Playground MCP server require authentication?

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

### Is the WOCLUB Cube Playground MCP server still maintained?

WOCLUB Cube Playground is still listed as active in the MCP registry. We last reached this channel on 29 September 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://worldorder.club/mcp
- Repository: https://github.com/timememe/woclub
- Changelog RSS feed: https://verifymcp.io/servers/club-worldorder-cube-playground/worldorder.xml
- Changelog JSON feed: https://verifymcp.io/servers/club-worldorder-cube-playground/worldorder.json
- HTML version of this page: https://verifymcp.io/servers/club-worldorder-cube-playground/worldorder