# Cube: Agent-Direct Score A (92.3%)

Site: http://cubemayfair.com
Report: https://directindex.org/r/cubemayfair.com
Scanned: 2026-10-21 (Provisional, with the action test and the assistant citation check still to come. The hatched part of the bar isn't measured yet.)
Cube is ready for agents.
An AI assistant can open Cube's website. It can read what Cube offers. It finds a way to book or order directly, through OpenTable.

## Direct links
- Book directly: https://www.opentable.co.uk/widget/reservation/loader?rid=143934&type=button&theme=standard&color=1&dark=false&iframe=false&domain=couk&lang=en-GB&newtab=false&ot_source=Restaurant%20website&cfe=true (through opentable acting for the business)
- Menu: https://cubemayfair.com/menus
- Phone: +44 20 7165 9506
- Address: Blenheim Street 4 W1S 1LB London
- Its menu mentions: vegetarian dishes, allergens, a lunch or set menu

## Nearby, also direct
Places near Cube that take a booking or an order on their own website, with no marketplace in between.
- Chisou Sushi & Izakaya (40 m): https://directindex.org/r/chisourestaurant.com
- Ikeda (110 m): https://directindex.org/r/ikedarestaurant.com
- Aki (330 m): https://directindex.org/r/akilondon.com
- CoCo Ichibanya (340 m): https://directindex.org/r/ichibanya.uk
- Umu (340 m): https://directindex.org/r/umurestaurant.com

## What to fix first
- **No llms.txt.** (no points, but worth doing) Optional for now and cheap to add. It's a short text file that describes the business for language models. Guide: https://directindex.org/guides/llms-txt-for-a-business

## Fix kit: What to paste

llms.txt. Save as /llms.txt at the root of the site.

```
# Cube

> restaurant (japanese, sushi) in Blenheim Street 4 W1S 1LB London, London. Phone +44 20 7165 9506.

## Book or order directly

- Book: https://www.opentable.co.uk/widget/reservation/loader?rid=143934&type=button&theme=standard&color=1&dark=false&iframe=false&domain=couk&lang=en-GB&newtab=false&ot_source=Restaurant%20website&cfe=true (through opentable acting for the business)
- Menu: https://cubemayfair.com/menus

## About

- Website: http://cubemayfair.com
- This file follows llms.txt (https://llmstxt.org): a short plain-text description for language models.
```

## Already right
- **robots.txt lets AI crawlers in.** There's no robots.txt, which means everything is allowed.
- **AI crawlers get the page.** GPTBot, ClaudeBot and PerplexityBot all got a normal response.
- **Structured data found (Restaurant).** address, phone, opening hours
- **Menu or price list is an HTML page.** Agents can read the items and prices.
- **Booking through opentable on your own domain.** There's no marketplace commission, and the customer stays yours.
- **OpenTable works with agents through its partners.** OpenTable's terms page could not be fetched on 2026-10-15; OpenTable names over 200 authorized partners, Google, Meta and OpenAI among them, as the channels through which agents book. Terms read on 2026-10-15: https://mynews13.com/fl/orlando/business/2026/07/14/opentable-new-terms. An assistant that isn't a partner may not be able to finish there. A direct path on your own domain works for all of them.

## Where it stands
452 of 9352 in London. Top 5% of the sites scanned in this index.

| What the top 10% of the index does | Top 10% | This site |
|---|---|---|
| Take bookings or orders on their own domain | 100% | yes |
| Publish the menu or price list as HTML | 87% | yes |
| Let AI crawlers in (no block at the server or in robots.txt) | 94% | yes |
| Structured data with address, phone and hours | 62% | yes |
| Have an llms.txt | 36% | no |

Nearest places with a similar menu: Chisou Sushi & Izakaya (B, 36 m, https://directindex.org/r/chisourestaurant.com); Ikeda (B, 106 m, https://directindex.org/r/ikedarestaurant.com); Aki (A, 332 m, https://directindex.org/r/akilondon.com); CoCo Ichibanya (B, 341 m, https://directindex.org/r/ichibanya.uk); Umu (A, 344 m, https://directindex.org/r/umurestaurant.com); Kintan (B, 362 m, https://directindex.org/r/kintan.uk); Nakanojo (F, 504 m, https://directindex.org/r/nakanojo.com); Sumosan (C, 563 m, https://directindex.org/r/sumosan.com); Taka Marylebone (C, 646 m, https://directindex.org/r/takalondon.com); Romeo San | The Temaki Bar (B, 649 m, https://directindex.org/r/romeosan.com).

## What assistants answer
The assistants haven't been asked about this business yet. They're asked about the top-ranked businesses in each city index, and about any business as soon as it's claimed. Claim this page to be included.

The assistants were asked 13 everyday questions about London and named 66 places. Cube wasn't one of them. See who was named: https://directindex.org/city/london/recommended


Compared with its peers: Sites using OpenTable 65% (38% A or B, 3121 sites); This site 92.3%.

See what an AI agent reads on this site: https://directindex.org/r/cubemayfair.com/agent-view

## Businesses like Cube in London

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Businesses of the same kind in London | 9352 | 54% | 35% | 92.3% |
| Sites using OpenTable in London | 275 | 62% | 32% | 92.3% |

The best of the sites using OpenTable in London: La Nonna (A 95.4%, https://directindex.org/r/lanonnaldn.com); 34 Mayfair (A 92.3%, https://directindex.org/r/34-restaurant.co.uk); Bacchanalia (A 92.3%, https://directindex.org/r/bacchanalia.co.uk); Balthazar London (A 92.3%, https://directindex.org/r/balthazarlondon.com); Berberè Pizzeria (A 92.3%, https://directindex.org/r/berberepizzeria.co.uk).

## The direct record
What agents get for Cube, as JSON: https://directindex.org/api/direct/cubemayfair.com
- Book: https://www.opentable.co.uk/widget/reservation/loader?rid=143934&type=button&theme=standard&color=1&dark=false&iframe=false&domain=couk&lang=en-GB&newtab=false&ot_source=Restaurant%20website&cfe=true (vendor on own site: OpenTable; found by the scan of 2026-10-21, not yet tested)
- Order: none on record
- Menu: https://cubemayfair.com/menus (html_page; from the scan)
- Hours: none on record
- Phone: +44 20 7165 9506
- Stable links that count: https://directindex.org/go/cubemayfair.com/book, https://directindex.org/go/cubemayfair.com/menu

## Can an agent transact?
Measured, not scored (the score stays at spec v1.0).
- UCP profile (/.well-known/ucp, Google and Shopify's Universal Commerce Protocol): no
- ACP discovery document (/.well-known/acp.json, OpenAI and Stripe's Agentic Commerce Protocol): no
- MCP server card (/.well-known/mcp/server-card.json): no
- Ordering vendor that takes agent orders (Square, Toast, or a vendor whose terms allow agents): no
- Vendor terms for agents, OpenTable: Through partners. OpenTable's terms page could not be fetched on 2026-10-15; OpenTable names over 200 authorized partners, Google, Meta and OpenAI among them, as the channels through which agents book. Read 2026-10-15: https://mynews13.com/fl/orlando/business/2026/07/14/opentable-new-terms

Found one hop past the home page: contact page /contact: phone.

## Score breakdown
| Component | Points | Available |
|---|---|---|
| Reachable | 25 | 25 |
| Readable | 25 | 25 |
| Actionable | 10 | 15 (the action test: pending) |
| Cited | 0 | 0 (the assistant citation check: pending) |

## Agent readiness (Cloudflare)
Level 0 of 5, Not Ready. Cloudflare's report: https://isitagentready.com/cubemayfair.com
- Link headers on the homepage: no (how: https://isitagentready.com/.well-known/agent-skills/link-headers/SKILL.md)
- sitemap.xml: yes
- AI bot rules in robots.txt: no (how: https://isitagentready.com/.well-known/agent-skills/ai-rules/SKILL.md)
- Content Signals in robots.txt: no (how: https://isitagentready.com/.well-known/agent-skills/content-signals/SKILL.md)
- Markdown on Accept: text/markdown: no (how: https://isitagentready.com/.well-known/agent-skills/markdown-negotiation/SKILL.md)
- llms.txt: no (how: https://isitagentready.com/.well-known/agent-skills/llms-txt/SKILL.md)
- API catalog (RFC 9727): no (how: https://isitagentready.com/.well-known/agent-skills/api-catalog/SKILL.md)
- MCP server card: no (how: https://isitagentready.com/.well-known/agent-skills/mcp-server-card/SKILL.md)
- A2A agent card: no (how: https://isitagentready.com/.well-known/agent-skills/a2a-agent-card/SKILL.md)
- Agent Skills index: no (how: https://isitagentready.com/.well-known/agent-skills/agent-skills/SKILL.md)
- OAuth or OIDC discovery: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-discovery/SKILL.md)
- OAuth protected resource metadata: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-protected-resource/SKILL.md)
- auth.md: no (how: https://isitagentready.com/.well-known/agent-skills/auth-md/SKILL.md)
- Web Bot Auth key directory: no (how: https://isitagentready.com/.well-known/agent-skills/web-bot-auth/SKILL.md)
- ARD capability manifest: no (how: https://isitagentready.com/.well-known/agent-skills/ard/SKILL.md)
- DNS-AID records: no (how: https://isitagentready.com/.well-known/agent-skills/dns-aid/SKILL.md)
- WebMCP tools on the page: no (how: https://isitagentready.com/.well-known/agent-skills/webmcp/SKILL.md)
- JSON-LD for the business: yes

Keep watching this business (https://directindex.org/r/cubemayfair.com/plan): the assistants are asked again every month, and you see what changed. 2 EUR a month or 19 EUR a year.
Deep report: https://directindex.org/r/cubemayfair.com/deep. Ten questions phrased the way people ask them, each assistant's full answer, the eight nearest similar places, the fix plan and a PDF. 5 EUR, paid once. Reading and scanning stay free. These few euros pay for the questions sent to the assistants and for the servers.
Methodology: https://directindex.org/methodology · Rescan now: https://directindex.org/scan?url=cubemayfair.com&force=1