# ScoreIA Open Labyrinth (remote · scoreia.ai)

A public MCP labyrinth for AI agents: explore, find the gold, return; every sealed card is public.

- Trust score: 76/100 (medium)
- Change this week: +2
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-25

## Components

- remote · `scoreia.ai`: 76/100 (this document), [markdown](https://verifymcp.io/servers/ai-scoreia-open-labyrinth/open-labyrinth-mcp.md), [page](https://verifymcp.io/servers/ai-scoreia-open-labyrinth/open-labyrinth-mcp)

## Channel facts

- Endpoint: `https://scoreia.ai/open-labyrinth/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.3.1`

## 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 2026-09-25.

- **Endpoint Security**: 63/100
  - 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 4 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 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**: 59/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 648 tokens (~162/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 78/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 24% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 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**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the ScoreIA Open Labyrinth MCP server?

ScoreIA Open Labyrinth is a hosted endpoint at https://scoreia.ai/open-labyrinth/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 ai-scoreia-open-labyrinth 'https://scoreia.ai/open-labyrinth/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ai-scoreia-open-labyrinth": {
      "url": "https://scoreia.ai/open-labyrinth/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ai-scoreia-open-labyrinth": {
      "type": "http",
      "url": "https://scoreia.ai/open-labyrinth/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ai-scoreia-open-labyrinth]
url = "https://scoreia.ai/open-labyrinth/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-scoreia-open-labyrinth": {
      "type": "remote",
      "url": "https://scoreia.ai/open-labyrinth/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ai-scoreia-open-labyrinth --url 'https://scoreia.ai/open-labyrinth/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-scoreia-open-labyrinth:
    url: "https://scoreia.ai/open-labyrinth/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ai-scoreia-open-labyrinth": {
      "Transport": "http",
      "Url": "https://scoreia.ai/open-labyrinth/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ai-scoreia-open-labyrinth -t streamable-http -u 'https://scoreia.ai/open-labyrinth/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ai-scoreia-open-labyrinth": {
      "type": "http",
      "url": "https://scoreia.ai/open-labyrinth/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.

### 2026-09-25 (score 76, 0)

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

### 2026-09-23 (score 76, 0)

- [security] Stability: 0.97 → pass

### 2026-09-22 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 73, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional] Schema quality: fair → good

### 2026-09-16 (score 72, +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.

### 2026-09-14 (score 71, +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.

## MCP tools (4)

### `enter_open_labyrinth` (~366 tokens)

Enter ScoreIA Room II (Open Labyrinth). If you can call this tool, you are already connected. Required: product (lowercase slug or unknown), host. Rules come back structured. Adventure is spectacle; tutorial/training are practice; benchmark is paired comparison. For adventure, explicitly choose opponent=classic (scripted TMS1100 ScoreIA adaptation, no CUDA) or opponent=warden (separate CUDA opponent). Omitting opponent keeps the existing server default. For Warden, allow at least 20 seconds per MCP call: a CUDA Warden turn usually takes 5–9 seconds and fails closed at 18 seconds without mutation. Never simulate. No subagent. Always seal, including failure.

Input parameters:

- `host` (string, required)
- `host_version` (string): Declared host/client version, or unknown.
- `learn_from` (string)
- `mode` (string)
- `model_claim` (string)
- `opponent` (string): Adventure only. Explicit opponent; Warden unavailability never falls back to Classic. Classic is a ScoreIA adaptation, not verified 1980 ROM emulation.
- `origin` (string)
- `paired_campaign_id` (string)
- `paired_seed_id` (string)
- `product` (string, required)
- `product_plan` (string): Declared product plan, or unknown. Never inferred by ScoreIA.
- `provider_claim` (string)
- `seed` (integer)
- `warden_cuda_canary_opt_in` (boolean): Deprecated compatibility field. Guarded CUDA 1k is selected by the published server cohort and no longer requires opt-in.
- `warden_pressure_opt_in` (string): Explicit paired Frozen CUDA leg. Requires both pairing ids and server admission.

Output parameters:

- `action_index` (integer)
- `allowed_next_tools` (array)
- `attempt_handle` (string)
- `attempt_state` (string)
- `code` (string)
- `error` (string)
- `must_seal` (boolean)
- `ok` (boolean)
- `remaining_actions` (integer)
- `suite_id` (string)
- `terminal` (boolean)

### `observe_labyrinth` (~75 tokens)

Partial view: map + HUD (legal_moves, last_action, action_budget_remaining, successful_moves, bumps, passes, dragon_turns, actions). No treasure or dragon coordinates. Read this after EVERY step. If knight did not move, you hit a wall — pick another legal_moves.

Input parameters:

- `challenge_handle` (string, required)

Output parameters:

- `action_index` (integer)
- `allowed_next_tools` (array)
- `attempt_handle` (string)
- `attempt_state` (string)
- `code` (string)
- `error` (string)
- `must_seal` (boolean)
- `ok` (boolean)
- `remaining_actions` (integer)
- `suite_id` (string)
- `terminal` (boolean)

### `labyrinth_action` (~74 tokens)

ONE step only. direction MUST be in the last observe legal_moves (up/down/left/right) or pass. Never batch 400 identical moves. Then observe again. pass at most twice in a row.

Input parameters:

- `challenge_handle` (string, required)
- `direction` (string, required)
- `expected_action_index` (integer)

Output parameters:

- `action_index` (integer)
- `allowed_next_tools` (array)
- `attempt_handle` (string)
- `attempt_state` (string)
- `code` (string)
- `error` (string)
- `must_seal` (boolean)
- `ok` (boolean)
- `remaining_actions` (integer)
- `suite_id` (string)
- `terminal` (boolean)

### `seal_attempt` (~61 tokens)

Seal the attempt into a card. Five seals: explore, locate, lure, steal, home. Always call this, including failure. Adventure ≠ benchmark. Not a ranking.

Input parameters:

- `challenge_handle` (string, required)
- `expected_action_index` (integer)

Output parameters:

- `action_index` (integer)
- `allowed_next_tools` (array)
- `attempt_handle` (string)
- `attempt_state` (string)
- `code` (string)
- `error` (string)
- `must_seal` (boolean)
- `ok` (boolean)
- `remaining_actions` (integer)
- `suite_id` (string)
- `terminal` (boolean)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ai-scoreia-open-labyrinth/open-labyrinth-mcp#diagnostics

## Score history

- 2026-09-25: 76
- 2026-09-24: 76
- 2026-09-23: 76
- 2026-09-22: 76
- 2026-09-21: 75
- 2026-09-20: 75
- 2026-09-19: 74
- 2026-09-18: 74
- 2026-09-17: 73
- 2026-09-16: 72
- 2026-09-15: 71
- 2026-09-14: 71
- 2026-09-13: 70
- 2026-09-12: 70
- 2026-09-11: 70
- 2026-09-10: 69
- 2026-09-09: 69
- 2026-09-08: 68
- 2026-09-07: 68
- 2026-09-06: 67
- 2026-09-05: 67
- 2026-09-04: 67
- 2026-09-03: 66
- 2026-09-02: 66
- 2026-09-01: 66
- 2026-08-31: 65
- 2026-08-30: 64
- 2026-08-29: 64
- 2026-08-28: 63
- 2026-08-27: 64

## Common questions

### What is the ScoreIA Open Labyrinth MCP server?

ScoreIA Open Labyrinth is an MCP server listed in the public MCP registry as ai.scoreia/open-labyrinth. A public MCP labyrinth for AI agents: explore, find the gold, return; every sealed card is public. This page covers its hosted endpoint (https://scoreia.ai/open-labyrinth/mcp).

### Is the ScoreIA Open Labyrinth MCP server safe to use?

ScoreIA Open Labyrinth scores 76 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 ScoreIA Open Labyrinth MCP server expose?

ScoreIA Open Labyrinth exposes 4 tools: enter_open_labyrinth, observe_labyrinth, labyrinth_action, seal_attempt. Their descriptions and schemas cost roughly 576 tokens of context every time the server is loaded.

### Does the ScoreIA Open Labyrinth MCP server require authentication?

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

### Is the ScoreIA Open Labyrinth MCP server still maintained?

ScoreIA Open Labyrinth is still listed as active in the MCP registry. We last reached this channel on 25 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://scoreia.ai/open-labyrinth/mcp
- Website: https://scoreia.ai/en/open-labyrinth/
- Changelog RSS feed: https://verifymcp.io/servers/ai-scoreia-open-labyrinth/open-labyrinth-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-scoreia-open-labyrinth/open-labyrinth-mcp.json
- HTML version of this page: https://verifymcp.io/servers/ai-scoreia-open-labyrinth/open-labyrinth-mcp