Terms of Service

Last updated 2 September 2026. These Terms form a binding agreement between you and the Provider of Fervio. Please read sections 13, 14 and 15 with care: they disclaim warranties, cap the Provider's liability, and require you to indemnify the Provider in defined circumstances.

1. Agreement to these Terms

1.1 These Terms of Service (the "Terms") govern your access to and use of Fervio, the story mapping service for GitHub Projects and Linear made available at fervio.co and its subdomains, together with its application programming interfaces and related documentation (collectively, the "Service").

1.2 By creating an account, connecting a source provider, or otherwise accessing or using the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.

1.3 If you accept these Terms on behalf of an organisation, you represent that you have authority to bind that organisation, and "you" refers to both you and that organisation.

2. Definitions

• Provider means the independent individual developer, resident in Japan, who operates the Service. There is no company behind the Service and no support organisation.
• Source Provider means GitHub, Inc. and Linear Orbit, Inc., whose products supply the issues, projects, milestones and teams that the Service displays.
• Source Data means the issues, projects, milestones, teams, labels and other records that reside with a Source Provider and that the Service reads or writes on your instruction.
• Service Data means the data the Service stores in its own systems, as enumerated on the Privacy page — principally map layout, the board ledger, membership records, share snapshots, and account and plan records.
• Board or map means a story map created in the Service over one or more scopes belonging to a Source Provider.
• Share Link means an unauthenticated, secret URL that renders a read-only snapshot of a map, as described in section 9.

3. The Service, and its dependence on Source Providers

3.1 The Service renders Source Data as a two-dimensional story map and writes changes back to the Source Provider on your instruction. It is a presentation and editing layer. It is not a system of record, a repository, or a backup.

3.2 The Service acts only within the permissions you have granted it at the Source Provider. Authorisation is determined by the Source Provider on every request: anything you cannot do at GitHub or Linear, you cannot do through the Service. The Provider does not grant, extend or override access.

3.3 The Service depends entirely on the continued availability, functionality and terms of the Source Providers and of the other third parties listed in section 6. The Provider does not control any of them. Changes to, degradation of, or discontinuation of any third-party service may impair or terminate all or part of the Service, and the Provider is not liable for that impairment or termination.

3.4 Features may be added, altered, restricted or removed at any time.

4. Eligibility and your account

4.1 You must be at least 18 years of age, or the age of majority in your jurisdiction if higher, and must have full capacity to enter into a binding contract. If you are between 13 and that age, you may use the Service only with the consent and supervision of a parent or legal guardian who accepts these Terms on your behalf.

4.2 You must hold a valid GitHub or Linear account, or a working email address, and you must hold the rights necessary to use the Source Data you open in the Service.

4.3 You are responsible for all activity under your account, including activity by anyone you invite to a map and by any automated client to which you issue an API key. Keep your credentials confidential and notify the Provider promptly at [email protected] of any suspected compromise.

4.4 An account must be registered by a person. Accounts created by bots or other automated means are not permitted. One person may hold one account; programmatic access belongs in an API key issued under section 10, not in a second account.

5. Your data, and the licence you grant

5.1 Source Data remains yours. Issues, projects, milestones and teams reside with the Source Provider and remain governed by your agreement with that Source Provider. The Provider claims no ownership of them.

5.2 Service Data remains yours. You grant the Provider a worldwide, non-exclusive, royalty-free licence to host, store, reproduce, transmit, adapt and display Source Data and Service Data solely to the extent necessary to operate, secure, support and maintain the Service for you and for the people with whom you share a map. This licence exists only to make the Service work; it ends when the relevant data is deleted.

5.3 No training, no sale. The Provider does not use your data to train machine-learning models, and does not sell, rent or otherwise disclose it beyond the processors named on the Privacy page.

5.4 Writes are real and irreversible. Moving a card, editing an issue description, and (on GitHub) changing a card's state, assignee, estimate or labels are genuine changes made at the Source Provider under your identity. The Provider cannot undo them for you, and maintains no undo history.

5.5 You may export Service Data at any time from Settings. The Provider gives no undertaking to retain data after deletion.

5.6 No pre-screening. The Provider does not review what you put into the Service before it appears. The Provider reserves the right, but accepts no obligation, to refuse or remove any content that reaches its systems, including a published share snapshot, where it appears unlawful, infringing or in breach of section 7.

6. Third-party services

6.1 The Service is delivered with, and depends on, the third parties enumerated on the Privacy page, currently GitHub, Linear, Cloudflare, Polar, Anthropic and Resend.

6.2 Your use of a Source Provider is governed by your agreement with that Source Provider. You must not use the Service in a way that breaches those agreements.

6.3 The Provider makes no representation or warranty regarding any third party, and is not responsible or liable for the acts, omissions, outages, security incidents, pricing, policy changes or discontinuation of any of them.

7. Acceptable use

7.1 You must not, and must not permit any other person to:

• use the Service in breach of any applicable law or regulation;
• use the Service in breach of the terms of any Source Provider;
• access, or attempt to access, any data, account, project or team that you are not authorised to access;
• probe, scan, overload, disrupt or circumvent any part of the Service or its rate limits, quotas, plan limits or authorisation checks;
• resell, sublicense, white-label or otherwise make the Service available to third parties as your own product or as a competing service;
• reverse engineer, decompile or disassemble any part of the Service, except to the extent that restriction is prohibited by applicable law;
• upload or transmit malicious code, or use the Service to store or distribute unlawful, infringing or harmful material; or
• run automated access that materially degrades the Service for other users.

7.2 Abuse of the Provider — whether verbal, written or otherwise, including threats of abuse, harassment or retribution — will result in immediate termination of your account.

7.3 The Provider may investigate suspected breaches and may suspend or terminate access under section 12.

8. AI features

8.1 The Service offers optional features that send text you supply to Anthropic, PBC in order to generate a draft map skeleton. Text is transmitted only when you invoke the feature. Your issues are not transmitted automatically.

8.2 Generated output is not verified. It may be inaccurate, incomplete, misleading or unsuitable for your purpose. You are solely responsible for reviewing it before you apply it to a map or to Source Data, and for any consequence of applying it.

8.3 The Provider makes no representation that generated output is original or free of third-party rights, and gives no warranty of non-infringement in respect of it.

8.4 AI usage is metered per plan. The Provider may change, restrict or withdraw AI features, including the applicable quotas, at any time.

9. Share Links

9.1 A Share Link publishes a read-only snapshot of a map at the moment of publication. Anyone who holds the URL can open it without signing in. The URL is the only control.

9.2 You are solely responsible for deciding what to publish and to whom you disclose the URL, and for any disclosure that follows from it, including onward forwarding by recipients.

9.3 A Share Link expires 90 days after publication, and is also subject to a view limit. It can be revoked earlier by the person who issued it, and by any person who holds write permission on the underlying scope at the Source Provider. A Share Link is folded when the Service learns that its issuer no longer has access to that scope, and when the map is deleted.

9.4 Revocation prevents future access. It cannot retrieve, delete or otherwise affect anything a recipient has already seen, copied or stored.

10. API keys and programmatic access

10.1 The Service can issue keys that allow an external client, including an AI client, to read and optionally write maps on your behalf through the Model Context Protocol endpoint.

10.2 A key is a credential and is shown once. You are responsible for storing it securely, for the acts of every client that holds it, and for revoking it in Settings if it is exposed. The Provider stores only a hash and cannot recover a key for you.

10.3 Keys carry an expiry and a scope, and never grant more than the underlying permissions at the Source Provider. The Provider may impose limits on the number of keys, their lifetime and their rate of use.

10.4 The Provider is not liable for any loss arising from your use of a key, from any third-party client that holds one, or from anything such a client does with your Source Data — including an AI client acting on your behalf. Automated access that degrades the Service for others may have its key suspended without prior notice.

11. Plans, fees and payment

11.1 The free plan limits how many maps you may keep editable. Exceeding the limit deletes nothing: maps beyond the limit become read-only until you choose which remain editable or move to a paid plan.

11.2 Payment is processed by Polar Software Inc., which acts as merchant of record and issues the receipt. Your payment card details are handled by Polar and are never received by the Provider. Polar's terms apply to the payment transaction.

11.3 Subscriptions renew automatically for successive periods until cancelled. Cancelling stops the next renewal; the plan remains active until the end of the period already paid for. Fees are stated exclusive of taxes unless indicated otherwise, and you are responsible for any applicable taxes other than taxes on the Provider's income.

11.4 Refunds. If the Service materially failed to do what this site says it does, contact [email protected] and the fee for the affected period will be refunded. Beyond that, fees are non-refundable except where refund is required by applicable law.

11.5 Price changes. The Provider may change fees. A change to the fee for an existing subscription takes effect at the start of the next renewal period and will be notified by email, or on this page, at least 30 days beforehand. Cancelling before that renewal avoids the new fee.

11.6 If a payment fails or a chargeback is raised, the Provider may downgrade or suspend the account until the amount is settled.

12. Term, suspension and termination

12.1 These Terms apply from your first use of the Service until terminated.

12.2 By you. You may stop at any time. In Settings you may disconnect a Source Provider or delete your account outright; in either case the Service also revokes its own authorisation at that Source Provider. Deleting a map removes its layout, its membership record and any share snapshot. You may also revoke access yourself at GitHub (Settings → Applications) or Linear (Settings → API).

12.3 By the Provider. The Provider may suspend or terminate your access, in whole or in part, with immediate effect and without notice, if you breach section 7, if required by law or by a Source Provider, if your account presents a security or abuse risk, or if fees are unpaid. Where circumstances allow, the Provider will give notice and an opportunity to cure.

12.4 Discontinuation. The Provider may discontinue the Service in whole or in part. Where the Service is discontinued in its entirety, the Provider will give at least 30 days' notice by email or on this site, and will refund the unused portion of any prepaid fee. No other compensation is payable.

12.5 Effect of termination. On termination your right to use the Service ends immediately, and Service Data becomes inaccessible at once. It is permanently deleted within 30 days and cannot be recovered thereafter. Source Data at the Source Provider is not affected. Export before you terminate.

12.6 Sections 5.1, 5.4, 5.6, 7, 10.4, 11.6, 12.5, 13, 14, 15, 16, 17 and 18 survive termination.

13. Disclaimer of warranties

13.1 THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE PROVIDER DISCLAIMS ALL WARRANTIES AND CONDITIONS, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, ACCURACY, AND NON-INFRINGEMENT.

13.2 THE PROVIDER DOES NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, TIMELY, SECURE, ERROR-FREE, OR FREE OF DATA LOSS, OR THAT DEFECTS WILL BE CORRECTED, OR THAT ANY DATA WRITTEN TO A SOURCE PROVIDER WILL BE COMPLETE OR CORRECT.

13.3 The Service is not a backup. Treat the Source Provider as the record. You are responsible for maintaining your own backups.

13.4 Nothing in these Terms excludes any warranty or liability that cannot lawfully be excluded, including liability for death or personal injury caused by negligence, for fraud, or for wilful misconduct or gross negligence.

14. Limitation of liability

14.1 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE PROVIDER SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUE, GOODWILL, BUSINESS OPPORTUNITY, ANTICIPATED SAVINGS, OR FOR ANY LOSS OR CORRUPTION OF DATA, IN EACH CASE HOWEVER ARISING AND WHETHER OR NOT THE PROVIDER WAS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

14.2 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE PROVIDER'S TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS, WHETHER IN CONTRACT, TORT (INCLUDING NEGLIGENCE), STATUTE OR OTHERWISE, SHALL NOT EXCEED THE GREATER OF (A) THE TOTAL FEES YOU ACTUALLY PAID TO THE PROVIDER FOR THE SERVICE IN THE TWELVE MONTHS IMMEDIATELY PRECEDING THE EVENT GIVING RISE TO THE CLAIM, AND (B) TEN THOUSAND JAPANESE YEN (JPY 10,000).

14.3 The limitations in this section apply even if a limited remedy fails of its essential purpose, and reflect an agreed allocation of risk that is a basis of the bargain between you and the Provider. Where applicable law does not permit a particular limitation, that limitation applies only to the extent permitted, and the remainder of this section continues in force.

14.4 Section 13.4 applies to this section.

15. Indemnification

15.1 You shall defend, indemnify and hold harmless the Provider from and against any third-party claim, demand, action or proceeding, and any resulting loss, liability, damage, fine, cost and expense (including reasonable legal fees), arising out of or relating to:

• your use of the Service, or use under your account or under a key you issued;
• Source Data or Service Data you supplied, published, wrote back to a Source Provider, or disclosed through a Share Link;
• your breach of these Terms, including section 7;
• your breach of any agreement with a Source Provider or other third party; or
• your infringement or misappropriation of the intellectual property, privacy or other rights of any person.

15.2 The Provider will notify you of any such claim without undue delay, and may participate in the defence with counsel of its own choosing at its own cost. You shall not settle any claim in a way that imposes an obligation or admission on the Provider without the Provider's prior written consent.

16. Intellectual property

16.1 The Service, including its software, interface, design, documentation, and the Fervio name and marks, is and remains the property of the Provider and its licensors. No rights are granted except those expressly stated in these Terms.

16.2 Subject to these Terms, the Provider grants you a limited, revocable, non-exclusive, non-transferable, non-sublicensable right to access and use the Service for your internal business or personal purposes for the duration of these Terms.

16.3 If you send the Provider suggestions or feedback, the Provider may use them without restriction or obligation to you.

16.4 Claims of infringement. If you believe material reachable through the Service infringes your copyright or other right, write to [email protected] identifying the material, the right you hold, and how to reach you. The Provider will review it and may remove the material under section 5.6. Almost all material shown by the Service resides at a Source Provider; the durable route for it is that provider's own notice process.

17. Changes to these Terms

17.1 The Provider may amend these Terms as the Service changes or as law requires. The date at the top of this page records the current version.

17.2 For a material change that is unfavourable to you, the Provider will give at least 30 days' notice on this page or by email before it takes effect. Continuing to use the Service after the effective date constitutes acceptance. If you do not accept, stop using the Service and, if you hold a paid plan, cancel; the unused portion of the prepaid period will be refunded.

18. Governing law and jurisdiction

18.1 These Terms and any dispute arising out of or in connection with them, including non-contractual disputes, are governed by the laws of Japan, without regard to conflict of law rules.

18.2 The Tokyo District Court shall have jurisdiction as the court of first instance for any dispute arising out of or in connection with these Terms. Where you are a consumer, this does not deprive you of any right to bring proceedings in the courts of your place of residence where mandatory law so provides.

19. General

19.1 Entire agreement. These Terms, together with the Privacy page and the Permissions page, constitute the entire agreement between you and the Provider concerning the Service, and supersede all prior understandings on that subject.

19.2 Severability. If a provision is held unenforceable, it shall be modified to the minimum extent necessary to make it enforceable, and the remaining provisions continue in full force.

19.3 No waiver. A failure to enforce a provision is not a waiver of it.

19.4 Assignment. You may not assign or transfer these Terms without the Provider's prior written consent. The Provider may assign these Terms in connection with a transfer of the Service, on notice to you.

19.5 Force majeure. The Provider is not liable for any failure or delay caused by circumstances beyond its reasonable control, including the acts, outages or discontinuation of any third party named in section 6.

19.6 No agency. These Terms create no partnership, agency, employment or joint venture between you and the Provider.

19.7 Language. These Terms are made in the English language. The English text is the sole authentic version and prevails over any translation, whether machine-generated or otherwise.

20. Contact

Fervio is built and operated by an independent developer in Japan. Write to [email protected]; the person who built it reads it. Full contact details are provided on request and to any authority entitled to them.