Terms of Service

1. Who we are and these terms

Shuriken is provided by Enkova s. r. o. ("we", "us"), a limited liability company registered in Slovakia.

Name

Enkova s. r. o.

Registered office

Lehotská 370/22, 972 71 Nováky, Slovakia

IČO (company ID)

57610657

DIČ (tax ID)

2122847859

IČ DPH (VAT ID)

SK2122847859

Register

Obchodný register Okresného súdu Trenčín, oddiel Sro, vložka č. 57998/R

Share capital

5 000 €, fully paid up

Email

office@shuriken.sh

Phone

+43 688 64676078

Post

Enkova s. r. o., Lehotská 370/22, 972 71 Nováky, Slovakia

Consumer protection authority

Slovenská obchodná inšpekcia, Inšpektorát SOI pre Trenčiansky kraj, Hurbanova 59, 911 01 Trenčín, Slovakia

Data protection authority

Úrad na ochranu osobných údajov Slovenskej republiky, Galvaniho 7/B, 821 04 Bratislava, Slovakia, dataprotection.gov.sk

Write to us by email or post with questions, complaints and data protection requests. Our email address is also our single point of contact for authorities, the European Commission and the European Board for Digital Services, and for users of Shuriken (Articles 11 and 12 of Regulation (EU) 2022/2065); you can write to us in English or Slovak. How to report illegal content is in section 6, and how to resolve a dispute, including alternative dispute resolution, is in section 18.

These terms apply when you create an account or use the Shuriken apps, website or cloud. You accept them when you sign up, when you choose your first password, when you accept a new version in the app, or when you order Pro. Our Privacy policy explains how we handle personal data; it is information for you, not something you agree to.

A consumer is a person using Shuriken outside their trade, business or profession; a business customer is anyone else. Some sections apply only to one of them, and say so.

2. The service

Shuriken is a cockpit for coding agents. It consists of the apps (desktop, web and phone), the software that runs agents on your computers and servers, and our cloud at shuriken.sh, which keeps your account, syncs your devices and relays your devices' encrypted connections to each other.

Shuriken does not include any AI model. The agents you run (such as Claude Code or Codex) come from their providers and work with your own accounts with those providers (section 10). The features of each plan, the supported systems and the minimum requirements are described where you choose a plan and in the app.

3. Plans: Free, Pro and Founding

• Free is kept by accounts created before version 1.5 of these terms was published (9 November 2026); an account created after that cannot choose it. It costs nothing and needs no card. It includes up to 2 sources (the AI provider sign-ins and API keys you add) and up to 2 linked computers or phones. Web browsers and the web app do not count as devices, one machine counts once, and sources other people share with you never count. Automations and sharing your sources are not included. Everything else is included, subject to fair use (section 5a).
• Pro has no limit on sources or devices and includes automations and source sharing. It costs €49 a month or €490 a year (section 7). An account created after version 1.5 was published uses Shuriken with Pro: it starts the free trial of Pro, or orders Pro without it. Until it does, it can sign in but holds no sources.
• Founding members are the accounts we have made Founding members: for example accounts (and waitlist sign-ups) from before Shuriken's public launch, friends of Shuriken, and accounts we gave Pro for good. A Founding member gets Pro at no charge for as long as their account exists and Shuriken runs. We will never charge a Founding member for Pro, price changes (section 8) do not apply to them, and if Pro is ever replaced, they get the plan that replaces it on the same terms. Founding membership belongs to the account and cannot be transferred.
• Free trial of Pro: while we offer free trials, an order of Pro starts with 30 days free. You give your card when you order; we charge it for your first period of Pro when the 30 days end, unless you cancel before then (section 9), in which case nothing is charged and Pro ends when the trial ends (When Pro ends, below). We email you 3 days before the first charge. There is one free trial per person: an account that has had Pro or a free trial before, or whose email address already had one on another account, orders Pro without free days, and the order page says so before you pay. A card that already had a free trial on another account gets no free days either: if you order Pro with it, Pro is billed when you order. Free trials started before 28 October 2026, which came with new accounts without a card, run to their end; to keep them fair we check the signals listed in our Privacy Policy (section 4, Free trial of Pro).
• Nothing turns into a paid plan by itself: you only pay for Pro if you order it yourself (section 7). Some features may be marked as previews; previews may change or be removed, and are never what you pay for.

4. Your account

• You must be at least 16 to use Shuriken.
• To buy a paid plan, you must be able to enter into a contract under the law that applies to you. If you subscribe for a business, you confirm you may bind it.
• An account is for one person. Give a correct email address and keep it current: we send sign-in details, important notices and, later, invoices there.
• Keep your password, your email and any Google or Apple account you sign in with safe. Every sign-in opens your vault: our cloud keeps a key to it for that, stored encrypted (see the Privacy policy). Tell us at once if you think someone else has used your account.
• You are responsible for what happens in your account.

5. Acceptable use

You must not use Shuriken to:

• break the law or infringe anyone's rights;
• write, store or spread malware, or attack, probe or overload any system, including ours;
• get around Shuriken's limits or security, or reach other accounts' data;
• break the terms of the AI providers whose accounts you use, including their rules on sharing accounts;
• resell or rent out access to Shuriken without our written agreement;
• create accounts by automated means, or several accounts to get around a limit.

Agents you run act on your computers with the permissions you give them. Review what they do and what they produce before you rely on it.

5a. Fair use

"Unlimited" means we set no fixed cap for normal personal or team use of Shuriken. To protect the service for everyone, we may slow down or pause activity that goes far beyond that: for example relay traffic or storage many times higher than a typical account's, automated account creation, or using Shuriken to provide a service to third parties.

Before we do, we warn you and explain what to change, unless there is an urgent need to prevent harm to our systems or other people. We limit only what is needed and only for as long as needed, and you can contest it (section 6). Automatic limits that protect our systems, such as limits on failed sign-ins or on requests per minute, apply to every account in the same way.

6. Reporting illegal content

Shuriken keeps your content private to your account and those you share with. If you believe something stored with us is illegal, write to office@shuriken.sh with: why you think it is illegal, where it is (a link or enough to find it), your name and email, and a statement that you believe in good faith that your notice is correct and complete. A notice about child sexual abuse material does not need your name or email. We decide on notices carefully, without undue delay, and tell you what we decided.

If we restrict your account or content because of a notice, a breach of these terms or fair use (section 5a), we send you a statement of reasons: what we restricted and for how long, the facts and the ground (the law or the section of these terms), whether automated means were used to detect or decide it, and how you can seek redress. You can contest it by replying to us, and we look at it again by hand; you can also go to an out-of-court dispute body (section 18) or to court. Decisions on notices and on accounts are taken by a person; only the automatic limits in section 5a work without one.

7. Ordering Pro, prices and payment

How ordering works

1. Signed in on shuriken.sh, you choose Pro and a billing period (a month or a year). The order page shows the plan, its price, the billing period, that it renews automatically until you cancel, how to cancel, and your withdrawal right.
2. You tick that you agree to these terms. If you are a consumer, a separate box lets you ask, if you want, for Pro to start at once during the withdrawal period (section 9). Ticking it is up to you: Pro starts when you pay either way. If you buy for a business, you give its name, country and address, and its VAT ID if it has one.
3. You press Subscribe and pay, which shows the amount, and pay on our payment provider's page. Until you pay, you can go back and correct anything, or leave without ordering.
4. The contract is concluded when the payment is complete and we show the order confirmation on screen. We also email you the confirmation with these terms attached, so you keep a copy.

The contract is concluded in the language you choose on the order page: English or Slovak (section 20).

Prices and payment

• Pro costs €49 a month or €490 a year. These are final prices: nothing is added to them. We are a VAT payer in Slovakia (IČ DPH SK2122847859). For consumers in the EU and for businesses in Slovakia, the price includes Slovak VAT at 23%. Consumers outside the EU, businesses outside the EU, and businesses in other EU countries that give a valid VAT ID pay the same price with no VAT added; for those businesses in the EU, the VAT is due from them under the reverse charge.
• You pay in advance for each billing period through Stripe (Stripe Payments Europe, Ltd.), by card or another method shown on the payment page. We never see or store your full card details.
• If a payment fails, we email you and try again for up to 14 days; Pro stays on meanwhile. If it still fails, Pro ends (When Pro ends, below).
• We send invoices electronically to your account's email. Each shows the VAT charged, or the reason none is.

When Pro ends

When Pro ends (you cancel, withdraw, a payment fails for good, or a payment is refunded or taken back through your bank), an account that has the Free plan moves to Free, and any other account has no plan until it orders Pro again. Nothing is deleted. While a payment is disputed with your bank, Pro is paused, and it comes back if the dispute is closed in our favour. Sources and devices beyond the Free limits are paused, not deleted: you choose which ones stay active. An account without the Free plan has all its sources paused until it orders Pro again. Sources you share are paused for the people you shared them with, who are told by email, and are kept for 90 days. Ordering Pro again within that time restores everything.

8. Renewal, cancellation and price changes

• Pro renews automatically for the same period until you cancel it. There is no minimum term. For a yearly plan, we email you a reminder with the date and the amount at least 30 days before each renewal.
• You can cancel at any time: on the Cancel subscription here page (shuriken.sh/cancel, which works without signing in), or by writing to office@shuriken.sh. On that page you give your name and your account's email (and, if you like, the order number), choose an ordinary or, with a reason, an extraordinary cancellation and when it should take effect, and press Cancel now. Your cancellation counts from that moment, and we confirm it by email at once with its content and the date and time we received it.
• A monthly plan, and a yearly plan in its first year, then ends at the end of the period you paid for and is not renewed. After the first year, a yearly plan ends when you cancel, and we refund the whole months left in the period you paid for.
• Otherwise we do not refund the rest of a period, except where the law or these terms require it: after a withdrawal (section 9), a defect we cannot fix (section 14), a change you end the contract over (sections 13 and 19), or the end of the service (section 16).
• Price changes. We may change the price of a paid plan only for future billing periods, never for a period you have already paid for, and only for objective reasons: changes in our costs of providing Shuriken (hosting, payment processing, taxes and charges, staff), or new features added to your plan. Any increase is proportionate to those reasons. We tell you by email at least 30 days before the renewal it would apply to, giving the current price, the new price, the reason and the date. Business customers: the new price applies from that renewal unless you cancel before it. Consumers: we ask you to accept the new price in the app or on the web. If you do not accept it before the renewal, your subscription ends at the end of the current period and you are not charged, with no other consequence. A change in VAT rate is passed on only to the extent the law requires. Founding members are never charged (section 3).

9. Your 14-day right of withdrawal

This section applies to consumers.

Right of withdrawal

You have the right to withdraw from this contract within 14 days without giving any reason. The withdrawal period ends 14 days after the day the contract is concluded (section 7).

To withdraw, inform us (Enkova s. r. o., Lehotská 370/22, 972 71 Nováky, Slovakia, office@shuriken.sh, phone +43 688 64676078) of your decision by a clear statement. The easiest way is the Withdraw from contract here function at shuriken.sh/withdraw, for the whole withdrawal period: you check your details, then press Confirm withdrawal. If you send it without being signed in, we also email a link to the address you ordered with, to make sure it was you; your withdrawal counts from when you sent it either way. You can also send us an email or a letter. You may use the model withdrawal form below, but you do not have to. We confirm your withdrawal by email without delay, quoting your statement with the date and time we received it. It is enough that you send your withdrawal before the period ends.

Effects of withdrawal

If you withdraw, we refund all payments received from you without undue delay and at the latest within 14 days of the day we receive your withdrawal. We use the same means of payment you used, unless you expressly agree otherwise; you will not pay any fees for the refund.

Starting at once

Pro starts as soon as you pay. When you order, a separate box lets you expressly ask for it to start during the withdrawal period and confirm that you know you lose the right of withdrawal once the service has been fully provided. Ticking it is your choice. If you ticked it and then withdraw, you pay an amount proportionate to what we provided until you told us you were withdrawing, compared with the full contract. If you did not tick it, you owe nothing and we refund every payment.

The right of withdrawal is a consumer right. An order placed for a business has no right of withdrawal; it can be cancelled as section 8 describes.

10. Third-party AI providers

• Shuriken is independent. It is a third-party tool (a harness) that runs the AI providers' own apps and tools for you. We are not affiliated with, endorsed by or sponsored by Anthropic, OpenAI, Google or any other provider. Their names and trademarks (such as Claude, ChatGPT, Codex and Gemini) belong to their owners and are used here only to say which services Shuriken works with.
• You must follow the terms, usage policies and limits of each provider whose account you use with Shuriken, and you are responsible for doing so. Whether a provider allows a third-party tool, several devices or several accounts is set by that provider; read its terms before you connect an account.
• Installing or enabling a provider's agent through Shuriken means you accept that provider's terms and licence, including when Shuriken accepts them for you during the install.
• What a provider does with your account is its decision, not ours: its usage and rate limits, changes to its plans, prices or terms, and any warning, suspension or closure of your account. We are not responsible for those actions or their consequences, unless we caused them (for example, through a fault in Shuriken or a breach of these terms). This does not limit any right you have as a consumer, or any liability that the law does not allow us to exclude (section 15).
• Shuriken works with accounts you hold with AI providers such as Anthropic, OpenAI or Google, and with voice providers if you choose them. Those accounts are yours. Your contract with each provider, its terms, its usage limits and its fees apply, and you are responsible for following them.
• Your requests go from your devices to those providers directly, or, on a source someone lends you, through that person's computer. We do not control the providers, their availability or what their models produce, and we are not responsible for them.
• With Pro you can lend your sources (a provider sign-in or an API key, of the kinds the app offers to lend) to people you choose. In the app this is called sharing: you use Share by email in the source's settings, and they accept it. They then see it under Shared with you, marked Shared by and your name, and can use it until you stop sharing or the end you set; when it runs out, is paused or is stopped, Shuriken moves them to their next available source. The people you lend to use it through your computer, and your sign-in or key is not sent to them: it works only while that computer is on, and you can stop it at once.
• You choose how much they can use (a share of the source's week, a weekly spending cap, or Unlimited, meaning the source's own limits), and also how many chats at once, a daily spending cap, the models and until when. Your computer holds them to these limits before a request reaches the provider. You can change the limits, pause and resume sharing with one person, pause it for everyone at once (Pause all sharing) or stop it, at any time. They can stop using it at any time (Leave).
• That computer handles what they send: their requests pass through it to the provider, and it does not store them. It reads them in full to do so, so it sees what they send and receive in those chats: their messages, the code and files their agent sends, and the model's answers. Because it relays them, it could also change their requests and the answers they get back, so accept a source someone shares with you only if you trust them. The app tells them this before they accept. Our relay carries this traffic end-to-end encrypted and cannot read it.
• What they use is used on your account with that provider, as if you had used it yourself: it counts against your subscription's usage limits, and on an API key the provider charges its cost to you. Each request also sends the whole chat through your computer's internet connection. Your computer keeps a record of what each person used, per day (the number of requests, the tokens, an estimate of the cost and the models), and shows it to you in the app; they see how much of their limit they have used.
• Before you lend, you confirm that the provider's terms allow it for that kind of account; the app asks, and we record when you did. Many providers' personal plans do not allow it, and lending can put your account at risk. You stay responsible for your account with that provider.
• If two Shuriken users sign in to the same provider account, and both of their apps confirm that each of them holds it, each is told once in the app, with who the other is, and can turn it off there at any time. Neither of you receives the other's sign-in: each keeps their own and signs in again when it runs out. Shuriken shows who else holds the account and the limits you share. Each of you stays responsible for following that provider's terms.
• AI output can be wrong, insecure or infringe others' rights. Check it before you use it.

11. Your content and code

Your code, files, chats, prompts and everything you or your agents create remain yours. We claim no rights in them. You give us only the permission we need to store and transmit, for you, the data our cloud handles (most of it encrypted so we cannot read it), for as long as you use Shuriken. We do not use your content to train AI models.

If you send us ideas or feedback, we may use them freely, without owing you anything.

12. Our software

While your account exists, we give you a personal, non-exclusive, non-transferable right to install and use the Shuriken apps and software on your own devices, for your own work or your business's. Parts of Shuriken are open-source software; those parts are governed by their own licences, listed in the app, which these terms do not restrict. Apart from that, Shuriken, its name and its logo belong to us.

13. Availability and changes

We work to keep Shuriken available, but we do not promise it will never be interrupted: maintenance, updates and problems at our hosting provider can make it unavailable for a while. The agents on your own computers keep working without our cloud.

We improve Shuriken all the time and supply updates you need to keep it working and secure. We may change features for good reasons, such as security, new systems, the law or a provider's change. If a change harms a consumer's use of a paid plan more than slightly, we tell you in advance, on a durable medium, and you can end the contract free of charge within 30 days of the change; we then refund the part of the price for the remaining period within 14 days, to your original payment method.

13a. Changes to the Free plan

The Free plan's limits and features may change for objective reasons: the cost of running the service, security, abuse, the law, or a provider's change. We tell you in the app and by email at least 30 days before a change that reduces what Free includes. Nothing you created is deleted because of a change: anything above a new limit is paused until you remove it or move to Pro, and you can export your data at any time. If you do not agree, you can delete your account free of charge. Ending the Free plan entirely follows section 16.

14. Defects and complaints

Consumers: you have the statutory rights for digital services that do not conform to the contract. We are responsible for any lack of conformity that appears while your subscription runs. You can ask us to bring the service into conformity, and if we do not, cannot, or the defect is serious, you can ask for a price reduction or end the contract.

To complain, write to office@shuriken.sh describing the problem. We confirm your complaint, decide on it without undue delay and at the latest within 30 days, and tell you the result.

Business customers: to the extent the law allows, Shuriken is provided as it is, without any warranty beyond these terms.

15. Liability

Consumers: we are liable to you as the law provides. Nothing in these terms limits your statutory rights.

Business customers: we are not liable for lost profits, lost data you did not back up, or indirect damage, and our total liability in any 12 months is limited to the fees you paid us in those 12 months. These limits do not apply to damage caused intentionally or through gross negligence, to injury to life or health, or where the law does not allow them.

For everyone: we are not responsible for third-party AI providers or for what agents do on your devices with the permissions you gave them, except where that damage is caused by our breach of these terms.

16. Ending the contract and deleting your account

• You can stop using Shuriken and delete your account at any time in Settings › Account › Delete account. You can export your data there first. Deleting your account ends a Pro subscription at once, without a refund for the rest of the period you paid for; within 14 days of ordering, withdraw from the contract first (section 9) to get your money back. Data on your own computers stays there. How to delete without the app is on the Delete account page.
• We may limit, suspend or close an account that seriously or repeatedly breaks these terms or fair use (section 5a), or where the law requires. We tell you why in advance with a statement of reasons, unless there is an urgent need to prevent harm, and you can contest it (section 6).
• We may end the service for everyone with at least 60 days' notice, so you can export your data. If we end a paid plan without any fault of yours, we refund the unused part of the period you paid for.

17. Governing law and courts

These terms are governed by the law of the Slovak Republic. If you are a consumer living in another country, you also keep the protection of the mandatory rules of the law of your country, and you may bring a claim in its courts.

For business customers, the courts of the Slovak Republic have exclusive jurisdiction. The UN Convention on Contracts for the International Sale of Goods does not apply.

18. Resolving disputes

If something goes wrong, write to office@shuriken.sh first; we want to put it right.

Consumers: if you are not satisfied with how we handled a complaint, or you believe we have breached your rights, you may send us a request for redress. If we reject it or do not answer within 30 days of when you sent it, you may file a proposal for alternative dispute resolution with the Slovenská obchodná inšpekcia (Slovak Trade Inspection), Ústredný inšpektorát, Bajkalská 21/A, P.O. BOX 29, 827 99 Bratislava 27, Slovakia, soi.sk, ars@soi.sk, within one year. The procedure is free of charge. You may also go to court.

Our supervisory authority for consumer protection is the Inšpektorát Slovenskej obchodnej inšpekcie pre Trenčiansky kraj, Hurbanova 59, 911 01 Trenčín, Slovakia. The European Commission's online dispute resolution platform closed on 20 July 2025, so we do not link to it.

19. Changes to these terms

We may change these terms for these reasons: new or changed features, legal or regulatory changes, a court or authority decision, security, or to make them clearer. Changes to prices follow section 8, and changes to the Free plan follow section 13a. We give each version a number and date, and give 30 days' notice in the app and by email (paid and free accounts alike), with the changes highlighted. If you do not agree, you can cancel or delete your account before the date at no cost, and for a paid plan we refund the unused part of a prepaid period. The old terms apply until then; if you keep using Shuriken after the change takes effect, the new terms apply. A new version takes effect for an existing account 30 days after we email it the notice, and the app shows that date. A new account, and every new order, takes the version current at that moment.

20. Final provisions

• These terms are published in English and Slovak, and each language version is binding. You choose the language of your contract when you order, and we attach these terms in that language to your order confirmation. If the language versions differ, the version more favourable to you as a consumer prevails. We keep each version and send it to you again on request.
• If a provision is invalid, the rest stays in force, and the invalid provision is replaced by the valid one closest to its purpose.
• You may not transfer this contract without our consent. We may transfer it to a company that takes over Shuriken, if your rights are not reduced; we tell you first.
• If we do not enforce a right at once, we have not given it up.

Model withdrawal form

Complete and send this form only if you wish to withdraw from the contract.