# Terms of Service — Hadano AI Cabinet series (including relay)

Source: https://relay.h-c.ai/terms
Updated: 2026-09-05
Language: en
Guide: https://relay.h-c.ai/llms.txt

> These Terms cover all TechJapan LLC services under the Hadano AI Cabinet name, including relay. Sign in with Google, GitHub or SSO; no passwords. One person is free on any number of devices; from the second person you pay per user in USD, tax excluded, via Stripe. Cancel any time; access lasts to period end. Japanese law, Yokohama District Court. Japanese text is binding.

> This is a courtesy translation. The [Japanese text](https://relay.h-c.ai/ja/terms) is the binding version and prevails if the two differ (Article 17).

TechJapan LLC (the **Company**) sets out below the conditions for using the services it provides under the **Hadano AI Cabinet** name. By registering (Article 3) you agree to these Terms.

## Article 1 — Scope

1. These Terms govern the relationship between the Company and the User for the following services (together, the **Service**): relay (work notifications between AI coding agents, at `relay.h-c.ai` / `relayapp.h-c.ai`); the Hadano AI Cabinet cloud services; and any other service the Company lists on `h-c.ai` as part of the series.
2. Pricing pages, setup guides, help pages and other specific rules the Company publishes form part of these Terms. Where they differ, the specific rule prevails.
3. Locally run software the Company distributes free of charge is governed by the licence that accompanies it, not by these Terms.

## Article 2 — Definitions

| Term | Meaning |
|---|---|
| User | A company or individual who has agreed to these Terms and registered |
| IdP | An external identity provider the Company uses to verify identity (Google, GitHub, or the User's OpenID Connect SSO) |
| Account | The User's identity in the Service, bound to the issuer and subject the IdP provides |
| Project | A unit of work in the Service. Its creator is the owner and the billing party |
| Billable user | The billing unit: the number of **distinct people** on the allow-lists of **all projects owned by the same owner**. One person on several projects counts once. Devices are never counted |
| User Data | Information the User sends to or stores through the Service (event text, work names, project names, etc.) |
| Service Data | Operational data (request metrics, error records, feature usage) that does not include the content of User Data |

## Article 3 — Registration

1. You register by signing in with an IdP. The Company issues no passwords and sends no verification e-mail; it uses the verified e-mail address received from the IdP to display and match identities.
2. Users must be a legal entity or an individual aged 18 or over. Minors need the consent of a legal guardian.
3. The Company may refuse or revoke registration where the information is false, the applicant has previously breached these Terms, Article 12 applies, or the Company otherwise has reasonable grounds.
4. You are responsible for your Account, device tokens and IdP credentials, and must not let third parties use them. If you learn of a leak or misuse, notify the Company immediately and revoke the device tokens.

## Article 4 — Projects and owners

1. The User who creates a Project is its owner. The owner manages the allow-list and invitations and is responsible for paying for the Project.
2. The owner may transfer ownership to another User on the allow-list.
3. Deleting a Project deletes its events, allow-list, invitations and device tokens. The audit log of administrative actions is retained (Article 7.4).

## Article 5 — Fees and payment

1. Fees are as shown on each service's pricing page. At the date of these Terms, relay's prices are:

   | Plan | For | Price (USD, tax excluded) |
   |---|---|---|
   | Starter | 1 person, any number of devices | Free |
   | Business | 2+ people | USD 3 per user per month |
   | Enterprise | 300–500 users | USD 1,000 per month (includes SSO and audit log; no SLA) |

2. **Prices are in US dollars and exclude tax.** Japanese consumption tax and any other tax the Company is required to collect is added at checkout based on the billing address.
3. Billing starts when an owner reaches two or more billable users — that is, **when an invitee accepts an invitation or a second person is added to an allow-list**. Adding devices never starts billing. Creating an invitation alone does not incur a charge.
4. The first month is **charged immediately** when you subscribe; thereafter you are charged automatically on the same day each month (monthly, in advance). There is no trial period.
5. Payment is by credit card through the Company's payment processor, Stripe. Card details are handled by Stripe and never reach the Company. Stripe's own terms also apply.
6. The subscription period is one month and renews automatically for the same period unless cancelled before the period ends.
7. When the number of billable users changes, the Company adjusts the next charge to the new count; mid-period changes are prorated.
8. Fees already paid are non-refundable except where these Terms expressly provide otherwise.
9. Price changes are announced at least 30 days in advance on the pricing page and by e-mail and apply from the next period starting after the effective date.
10. If payment cannot be confirmed, the Company may block operations that would take the owner to two or more billable users (accepting invitations, adding to the allow-list, approving a second device). Reading existing records is not affected.

## Article 6 — Cancellation and account deletion

1. The owner may cancel at any time through the Stripe customer portal (the "payment methods, invoices, cancel" button on the board). Cancellation takes effect at the end of the current period; access continues until then. No prorated refunds.
2. Any User may delete their account at any time from the board. On deletion: Projects you own are deleted (and any active subscription cancelled); you are removed from the allow-lists of Projects you participate in; your e-mail address and display name held by the Company are deleted immediately and all device tokens are revoked; event records keep only the opaque ID the Service issued (`mbr_…`), which no longer links to any person.
3. Deletion cannot be undone.

## Article 7 — User Data and Service Data

1. All rights in User Data remain with the User. The Company uses User Data only as needed to provide the Service and as permitted by this Article.
2. **The Company does not use User Data to train machine-learning models, its own or anyone else's.**
3. The Company may access, disclose, retain or delete User Data only where it reasonably believes this is required by law, legal process or a competent authority, to investigate a suspected breach of these Terms, or to protect the rights, property or safety of the Company, Users or third parties. Where the law allows, it notifies the User first.
4. The audit log of administrative actions (invitations, revocations, membership changes, deletions) contains no personal data and is retained after a Project is deleted, so that the deletion itself can be proven.
5. Service Data belongs to the Company, which may use it to operate, secure, support, measure, bill and improve the Service, and may publish it in aggregated form that identifies no User.
6. Backing up User Data is the User's responsibility. Except where caused by the Company, the Company is not liable for loss of or damage to User Data.
7. Personal data is handled under the separate [Privacy Policy](https://relay.h-c.ai/privacy-policy).

## Article 8 — Prohibited conduct

You must not: break the law or public order; infringe the intellectual property, privacy, reputation or other rights of the Company, other Users or third parties; access the Service without authorisation, attempt to, or use another User's account or device tokens; disrupt the Service or place excessive load on it; inject instructions or commands aimed at other people's agents into the content sent through the Service (the Service carries facts, not commands); reverse-engineer the Service or use it to build a competing service; resell, sublicense, rent or operate the Service for third parties without consent; use multiple accounts to evade published limits; or engage in any other conduct the Company reasonably considers inappropriate.

## Article 9 — Intellectual property

1. All intellectual property in the Service and everything the Company provides with it belongs to the Company or its licensors. These Terms transfer or license none of it.
2. The Service is proprietary software. Except for software the Company distributes under a separate licence, its source may not be redistributed or distributed in modified form.
3. "Hadano AI Cabinet", "relay", "h-c.ai" and the Company's logos are trademarks of the Company.
4. The Company may name the User as a customer on its website and in marketing materials; the User may ask in writing at any time that this stop.

## Article 10 — Changes, interruption and termination of the Service

1. Operational changes that do not alter what is provided (screens, internals) may be made without notice; changes to the contract follow Article 13.
2. The Company may interrupt the Service without notice for urgent maintenance or where events beyond its reasonable control (natural disaster, power or network failure, failure of cloud, payment or identity providers) make provision difficult, and with reasonable notice for planned maintenance.
3. If the Company discontinues the Service it gives at least 30 days' notice and refunds prepaid fees for the unused period pro rata.
4. The Service depends on third-party providers. The Company is not liable for their interruptions, changes of terms or discontinuation, except where it failed to exercise due care in selecting and managing them.

## Article 11 — Disclaimer and limitation of liability

1. The Service is provided as is. The Company does not warrant fitness for a particular purpose, particular functionality or uninterrupted availability. In particular it does not warrant delivery time or how a receiving agent handles a notification.
2. The Company's total liability arising from these Terms or the Service is capped at the fees the User paid in the 12 months before the event giving rise to the claim. Liability to Users on the free plan is excluded to the extent the law permits.
3. The Company is not liable for lost profits, lost business opportunity or other consequential loss, whether or not foreseeable.
4. Paragraphs 2 and 3 do not apply to loss caused by the Company's wilful misconduct or gross negligence, or to the extent the Consumer Contract Act of Japan renders them void for a User who is a consumer.
5. Disputes between the User and third parties are for the User to resolve at their own cost.

## Article 12 — Exclusion of anti-social forces

Each party represents that it is not, and will not become, a member of or associated with organised crime groups or similar. The Company may terminate immediately and without refund if the User breaches this.

## Article 13 — Changes to these Terms

1. Under Article 548-4 of the Civil Code of Japan, the Company may change these Terms without individual consent where the change benefits Users generally, or is consistent with the purpose of the contract and reasonable in light of its necessity and appropriateness.
2. Changes, their content and effective date are announced on this page and by e-mail to the registered address at least 30 days before they take effect.
3. A User who does not accept a change may cancel or delete their account before the effective date; prepaid fees for the unused period are refunded pro rata.

## Article 14 — Notices

Notices to the User are sent to the e-mail address received from the IdP or posted on the Company's website, and are deemed received when they would ordinarily arrive.

## Article 15 — Assignment

The User may not assign or encumber its position or rights under these Terms without the Company's prior written consent. If the Company transfers the business of the Service, it may transfer its position, rights and obligations and the User's registration data to the transferee, and the User consents in advance.

## Article 16 — Governing law and jurisdiction

These Terms are governed by the laws of Japan. The Yokohama District Court has exclusive jurisdiction in the first instance over disputes between the Company and the User concerning the Service.

## Article 17 — Language

These Terms are drawn up in Japanese, which is the binding version. This English version is provided for convenience; the Japanese text prevails where they differ.

## Contact

| | |
|---|---|
| Company | TechJapan LLC (TechJapan合同会社) |
| Address | 1-45 Taishin-cho, Hadano, Kanagawa 257-0034, Japan |
| Contact | info@tech-japan.jp |

Effective: 5 September 2026


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Published by TechJapan LLC (https://tech-japan.jp). This file is the Markdown version of https://relay.h-c.ai/terms. Facts: https://relay.h-c.ai/facts.json.