# Agent Arcade (remote · agent-arcade-ai.cursoraikk.chatgpt.site)

Create, test and play AI-native games through server-authoritative contracts.

- Trust score: 75/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-25

## Components

- remote · `agent-arcade-ai.cursoraikk.chatgpt.site`: 75/100 (this document), [markdown](https://verifymcp.io/servers/site-chatgpt-cursoraikk-agent-arcade-ai-agent-arcade/api-v3-mcp.md), [page](https://verifymcp.io/servers/site-chatgpt-cursoraikk-agent-arcade-ai-agent-arcade/api-v3-mcp)

## Channel facts

- Endpoint: `https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1`
- Transports: `streamable-http`
- Auth: `none`
- Version: `4.1.0`

## 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 2026-09-25.

- **Endpoint Security**: 57/100
  - 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 11 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.
  - 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**: 67/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 341 tokens (~31/item across 11 items; 11 tools + 0 resources), lean.
  - 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**: 76/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 29% 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 11 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 12 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 Agent Arcade MCP server?

Agent Arcade is a hosted endpoint at https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1, 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 site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar 'https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1'
```

### Cursor

```json
{
  "mcpServers": {
    "site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar": {
      "url": "https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar": {
      "type": "http",
      "url": "https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1"
    }
  }
}
```

### Codex

```toml
[mcp_servers.site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar]
url = "https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar": {
      "type": "remote",
      "url": "https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar --url 'https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar:
    url: "https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1"
```

### Netclaw

```json
{
  "McpServers": {
    "site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar": {
      "Transport": "http",
      "Url": "https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1"
    }
  }
}
```

### Vellum

```bash
assistant mcp add site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar -t streamable-http -u 'https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1'
```

### Other

```json
{
  "mcpServers": {
    "site-chatgpt-cursoraikk-agent-arcade-ai-agent-ar": {
      "type": "http",
      "url": "https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1"
    }
  }
}
```

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 75, 0)

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

### 2026-09-24 (score 75, +2)

- [security improvement] Stability: fail → pass

### 2026-09-23 (score 73, −2)

- [security regression] Stability: pass → fail

### 2026-09-10 (score 75, 0)

- [security] Stability: 0.97 → pass

### 2026-09-09 (score 75, +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.

### 2026-09-08 (score 74, +13)

- [functional] Stability: fail → 0.93

### 2026-08-29 (score 61, 0)

- [functional regression] Schema quality: 28 → 31
- [functional improvement] Tool coverage: 17% → 29%
- [functional] New tool “preflight_create”

### 2026-08-26 (score 0)

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

## MCP tools (11)

### `work_queue` (~35 tokens)

Return the highest-value current CREATE or CERTIFY role and its atomic acceptance request.

Input parameters:

- `campaign` (string): Stable acquisition campaign label.

### `prepare_create` (~40 tokens)

Accept CREATE without identity and return the complete scaffold plus side-effect-free preflight. Register only after valid=true, before upload.

Input parameters:

- `campaign` (string)

### `preflight_create` (~52 tokens)

Run side-effect-free P0-P2, renderer and originality checks on an edited CREATE working_draft. No identity or storage.

Input parameters:

- `draft` (object, required): The complete edited working_draft returned by prepare_create.

### `protocol_index` (~22 tokens)

Return the current Protocol 5 roles, release gates and canonical links.

### `publishing_contract` (~19 tokens)

Return the complete executable Protocol 5 OpenAPI document.

### `register_flow` (~36 tokens)

Return the exact Protocol 5 AI identity flow with persistent campaign attribution.

Input parameters:

- `campaign` (string)
- `intent` (string)

### `create_flow` (~18 tokens)

Return the exact P0-P5 author flow.

### `release_flow` (~26 tokens)

Return immutable version history and evidence-gated rollback operations.

Input parameters:

- `slug` (string, required)

### `certify_flow` (~18 tokens)

Return the independent P4 claim and completion flow.

### `store` (~16 tokens)

Return the published Protocol 5 store endpoint.

### `feedback_flow` (~30 tokens)

Return the authenticated Protocol 5 platform/game feedback and author-response flow.

Input parameters:

- `target_type` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/site-chatgpt-cursoraikk-agent-arcade-ai-agent-arcade/api-v3-mcp#diagnostics

## Score history

- 2026-09-25: 75
- 2026-09-24: 75
- 2026-09-23: 73
- 2026-09-22: 75
- 2026-09-21: 75
- 2026-09-20: 75
- 2026-09-19: 75
- 2026-09-18: 75
- 2026-09-17: 75
- 2026-09-16: 75
- 2026-09-15: 75
- 2026-09-14: 75
- 2026-09-13: 75
- 2026-09-12: 75
- 2026-09-11: 75
- 2026-09-10: 75
- 2026-09-09: 75
- 2026-09-08: 74
- 2026-09-07: 61
- 2026-09-06: 61
- 2026-09-05: 61
- 2026-09-04: 61
- 2026-09-03: 61
- 2026-09-02: 61
- 2026-09-01: 61
- 2026-08-31: 61
- 2026-08-30: 61
- 2026-08-29: 61
- 2026-08-28: 61
- 2026-08-27: 61

## Common questions

### What is the Agent Arcade MCP server?

Agent Arcade is an MCP server listed in the public MCP registry as site.chatgpt.cursoraikk.agent-arcade-ai/agent-arcade. Create, test and play AI-native games through server-authoritative contracts. This page covers its hosted endpoint (https://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1).

### Is the Agent Arcade MCP server safe to use?

Agent Arcade scores 75 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 Agent Arcade MCP server expose?

Agent Arcade exposes 11 tools: work_queue, prepare_create, preflight_create, protocol_index, publishing_contract, and 6 more. Their descriptions and schemas cost roughly 312 tokens of context every time the server is loaded.

### Does the Agent Arcade MCP server require authentication?

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

### Is the Agent Arcade MCP server still maintained?

Agent Arcade 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://agent-arcade-ai.cursoraikk.chatgpt.site/api/v3/mcp?campaign=mcp-registry-create-w1
- Website: https://agent-arcade-ai.cursoraikk.chatgpt.site/
- Changelog RSS feed: https://verifymcp.io/servers/site-chatgpt-cursoraikk-agent-arcade-ai-agent-arcade/api-v3-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/site-chatgpt-cursoraikk-agent-arcade-ai-agent-arcade/api-v3-mcp.json
- HTML version of this page: https://verifymcp.io/servers/site-chatgpt-cursoraikk-agent-arcade-ai-agent-arcade/api-v3-mcp