# Parallel World (remote · pw.migurei.ai)

Check which AI bots a site's robots.txt allows; read-only facts about Parallel World

- Trust score: 69/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `pw.migurei.ai`: 69/100 (this document), [markdown](https://verifymcp.io/servers/ai-migurei-pw-parallel-world/pw.md), [page](https://verifymcp.io/servers/ai-migurei-pw-parallel-world/pw)

## Channel facts

- Endpoint: `https://pw.migurei.ai/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.1.0`

## 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 2026-11-05.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - 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**: 64/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 855 tokens (~285/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 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.
  - Structured output schemas are declared (67% 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 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**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the Parallel World MCP server?

Parallel World is a hosted endpoint at https://pw.migurei.ai/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-migurei-pw-parallel-world 'https://pw.migurei.ai/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ai-migurei-pw-parallel-world": {
      "url": "https://pw.migurei.ai/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ai-migurei-pw-parallel-world": {
      "type": "http",
      "url": "https://pw.migurei.ai/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ai-migurei-pw-parallel-world]
url = "https://pw.migurei.ai/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-migurei-pw-parallel-world": {
      "type": "remote",
      "url": "https://pw.migurei.ai/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ai-migurei-pw-parallel-world --url 'https://pw.migurei.ai/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-migurei-pw-parallel-world:
    url: "https://pw.migurei.ai/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ai-migurei-pw-parallel-world": {
      "Transport": "http",
      "Url": "https://pw.migurei.ai/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ai-migurei-pw-parallel-world -t streamable-http -u 'https://pw.migurei.ai/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ai-migurei-pw-parallel-world": {
      "type": "http",
      "url": "https://pw.migurei.ai/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.

### 2026-11-03 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 67, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: 230 → 285
- [functional improvement] Tool coverage: 50% → 67%
- [functional] Schema quality: good → excellent
- [functional] New tool “verify_ai_bot”

### 2026-10-28 (score 66, −1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “check_ai_bot_access” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 184 → 230

### 2026-10-27 (score 67, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-26 (score 66)

First indexed and scored.

## MCP tools (3)

### `get_site_info` (~82 tokens)

Parallel World site information

Returns the facts published on this website, in Japanese: service overview, plans, prices and payment terms, how the scanner behaves, how to contact us, and the operating company. Each fact comes with the URL of the page that shows it. Read-only; it returns nothing that is not on the pages.

Input parameters:

- `topic` (string, required): Which facts to return

### `check_ai_bot_access` (~251 tokens)

Check which AI bots a site allows

Reads the public robots.txt of a website (one request to https://<host>/robots.txt, nothing else on the site) and says, for each AI crawler and AI agent of the migurei bot registry (training crawlers such as GPTBot and ClaudeBot, search bots, fetchers that act for a user, and others), whether that bot is allowed or disallowed for the path "/", which robots.txt rule decided it, and whether the file exists. Each bot also carries observed_on_pw: the counts our own lab site pw.migurei.ai recorded for that bot (published on https://pw.migurei.ai/ja/research/ai-bot-first-visits; the same for every domain, not about the domain asked, not a prediction). Input is a domain or URL; only public domain names are accepted (no IP addresses, no ports, no private hosts). Read-only; the domain is not stored. robots.txt is a request to bots, not access control, and a User-Agent is only a claim.

Input parameters:

- `domain` (string, required): A public domain name or a URL, for example example.com or https://example.com/page. Only its host is used.

Output parameters:

- `bots` (array)
- `domain` (string)
- `learn_more` (string)
- `method` (string)
- `registry_version` (string)
- `robots_txt` (object)
- `robots_url` (string)
- `summary` (object)

### `verify_ai_bot` (~306 tokens)

Verify that an IP address is really the AI bot its User-Agent claims

Given the IP address and the User-Agent string of a request (for example from a server log), says whether that IP is inside the IP ranges the bot's operator publishes. The User-Agent is matched against the migurei bot registry (registry/bots); the IP is matched, IPv4 and IPv6, against the operator's published feed snapshot bundled with the registry (the snapshot date and registry version are in the answer). Status: verified (IP is in the operator's published ranges), ip_not_in_feed (the User-Agent names a registered bot but the IP is not in its ranges), no_feed (registered bot, but its operator publishes no IP ranges, so it cannot be checked), unknown_ua (no registered bot matches). Needs no outside request. Only public internet addresses are accepted (private, loopback, link-local, CGNAT, multicast, documentation and reserved addresses are refused). Read-only; the IP address and User-Agent are not stored and not logged. "verified" only means the IP is in the operator's ranges; the snapshot goes stale between updates.

Input parameters:

- `ip` (string, required): One public IPv4 or IPv6 address, for example from the access log.
- `user_agent` (string, required): The User-Agent header of that request, for example "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.1; +https://openai.com/gptbot)".

Output parameters:

- `bot` (object|null)
- `feeds` (array)
- `ip` (string)
- `ip_version` (integer)
- `limits` (object)
- `matched_feed` (string|null)
- `meaning` (object)
- `method` (string)
- `privacy` (object)
- `registry_version` (string)
- `snapshot_date` (string)
- `status` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ai-migurei-pw-parallel-world/pw#diagnostics

## Score history

- 2026-11-05: 69
- 2026-11-04: 69
- 2026-11-03: 69
- 2026-11-02: 68
- 2026-11-01: 68
- 2026-10-31: 67
- 2026-10-30: 67
- 2026-10-29: 66
- 2026-10-28: 66
- 2026-10-27: 67
- 2026-10-26: 66

## Common questions

### What is the Parallel World MCP server?

Parallel World is an MCP server listed in the public MCP registry as ai.migurei.pw/parallel-world. Check which AI bots a site's robots.txt allows; read-only facts about Parallel World. This page covers its hosted endpoint (https://pw.migurei.ai/mcp).

### Is the Parallel World MCP server safe to use?

Parallel World scores 69 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 Parallel World MCP server expose?

Parallel World exposes 3 tools: get_site_info, check_ai_bot_access, verify_ai_bot. Their descriptions and schemas cost roughly 639 tokens of context every time the server is loaded.

### Does the Parallel World MCP server require authentication?

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

### Is the Parallel World MCP server still maintained?

Parallel World is still listed as active in the MCP registry. We last reached this channel on 5 November 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://pw.migurei.ai/mcp
- Website: https://pw.migurei.ai/?utm_source=mcp-registry
- Changelog RSS feed: https://verifymcp.io/servers/ai-migurei-pw-parallel-world/pw.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-migurei-pw-parallel-world/pw.json
- HTML version of this page: https://verifymcp.io/servers/ai-migurei-pw-parallel-world/pw