Terms of Service

Last updated: 12 August 2026

1. Agreement

These Terms govern your access to and use of commonspecs — the website commonspecs.com, the API, the reference skill, the MCP server, and related services (the “Service”). The Service is operated by YNOTS sp. z o.o. (registered seat: ul. Rakowicka 10B, 31-511 Kraków, Poland; KRS 0001191921, NIP 6751818253, REGON 542604468; contact@ynots.ai; +48 690 354 418) (“YNOTS”, “we”, “us”). By creating an account or using the Service, you agree to these Terms. If you use the Service on behalf of an organisation, you confirm you are authorised to bind it.

2. Definitions

• Specifications — structured, engineering-grade product data served by the Service, each carrying a confidence and quality score.
• API — our authenticated REST endpoints. Skill / MCP server — our reference client integrations that call the API.
• Contribution — product data, sources, corrections, or observations you submit via submit_contribution.
• API Token — your secret credential (cs_live_…) authenticating API calls.

3. Accounts

You need an account with a verified email address. Free accounts require no payment card. You are responsible for the accuracy of your details, for keeping your password and API Tokens secret, and for all activity under your account or Tokens. You can issue and revoke your own Tokens at any time from your account page, so a leaked Token is something you can shut off yourself in seconds — and please tell us as well, at contact@ynots.ai. The Service is intended for businesses and professionals and is not directed to children under 16.

4. Your plan is your choice

We offer tiered plans as described on our pricing page, and which one you are on is always your decision. You can move up, move down, or cancel at any time from your account, or by writing to contact@ynots.ai if anything about the self-service path does not work for you.

• Nothing upgrades you automatically. Going over a plan limit does not silently move you to a more expensive plan — we either hold you at the limit or ask you first.
• You keep what you paid for. Cancelling takes effect at the end of the period you have already paid for, and you keep full access until then.
• Price changes are announced before they apply to you, with reasonable notice and never mid-period. If you do not want the new price, cancel before it takes effect.
• Downgrading, including going back to Free, does not delete your account or your contribution history.

Paid plans are billed through Stripe, and by subscribing you authorise the recurring or usage-based charges for the plan you picked. Fees are exclusive of VAT and other applicable taxes, which we add where required (EU VAT-OSS, reverse charge for eligible B2B customers in the EU). Enterprise and bulk arrangements are governed by a separate written contract, which prevails over these Terms to the extent of any conflict.

5. Refunds and disputes

• If you are a consumer, your statutory withdrawal right applies — nothing here takes it away, and where the law gives you 14 days to change your mind, you have them.
• Cancelled early and barely used it? Write to us. If you cancel within 14 days of a payment and have made little or no use of the plan in that period, we will refund it. Beyond that, self-service fees are not refunded once your Token has been activated, because access is delivered immediately.
• If the fault is ours, we fix it at our cost — a billing error, a double charge, or an outage long enough to make the plan pointless is refunded or credited, whichever you prefer.
• Enterprise: invoices may be disputed in good faith within 14 days of the invoice date, and undisputed amounts remain payable.
• Service levels: any agreed availability target is remedied by service credits rather than cash refunds.
• Chargebacks: please talk to us before reversing a charge — we would rather refund you directly. Reversing a charge for a service you used and kept is a breach of these Terms, and we may suspend the account and recover what is due.

6. Acceptable use

You agree not to:

• exceed the rate limits or quotas of your plan, or circumvent metering, authentication, or security,
• scrape, bulk-export, or systematically harvest the API beyond normal documented use,
• resell, redistribute, or re-serve a substantial part of the Specifications to third parties (bulk redistribution rights exist only under a separate Enterprise or bulk contract, and only for the internal “terminal” use defined there). This limits what you may do with the database we built, not what anyone may do with an individual fact — quoting a single specification, with or without crediting us, is fine,
• share or expose API Tokens, or use the Service to build a competing dataset for redistribution,
• submit unlawful content, infringe third-party rights, or use the Service for any illegal purpose.

7. Contributions and licence

Facts are not owned, and we do not ask you to license them to us. Almost everything you contribute is factual information — a fabric weight, a material, a certification number, a price on a given day. Factual information is not protected by copyright, so no licence over it is needed, and we take the position that claiming one would be asserting a right neither you nor we hold.

Where rights do exist in what you send, you keep them. Some Contributions carry copyright — an observation written in your own words, a photograph, any original material. For those, and only those, you grant YNOTS a worldwide, non-exclusive, royalty-free, perpetual, irrevocable, sublicensable, and transferable licence to host, use, reproduce, modify, aggregate, derive from, and redistribute the material — through the API on all tiers, and in bulk datasets — as part of the Service. Non-exclusive means you can go on using and licensing it anywhere else. Perpetual and irrevocable are there for one practical reason: material already published to every other user, and already relied on by them, cannot be withdrawn from the shared database afterwards.

What protects the shared database is not any claim over the individual facts in it, but the sui generis database right in the collection as a whole, described in Section 10.

Closing your account does not leave your name attached to anything. The facts you contributed stay in the shared database, and the link between those facts and your personal account data is removed when you close your account, as described in the Privacy Policy.

You undertake to contribute only material you are entitled to submit — facts you have read, measured, or observed, and original material you hold the rights to reproduce. Copying a substantial part of someone else's database is not a Contribution you may make, whatever the status of the individual facts in it. You also confirm that the Contribution is, to your knowledge, accurate and not unlawful. We record your acceptance of these Terms, including date and version, when you contribute.

8. Extraction and your environment

Our reference skill and MCP integrations run on your machine, not ours. When your LLM fetches or extracts a third-party page, that happens in your environment, under your control, on your own LLM subscription and tokens — we never see the contents of your conversation with your LLM, only the lookups your tools make to our API and the Contributions you choose to submit.

The other side of that same coin: because it is your environment, you are responsible for complying with the terms and robots policies of any website you direct your tools to access, and we do not control your LLM provider or actions taken on your machine.

9. Data accuracy — what the scores mean

Every value we serve carries a confidence and a quality score, and wherever we have one, the source you can check for yourself. We never invent values — a fact we do not have is returned as missing, not guessed.

Specifications are community- and machine-sourced and provided “as is”. We do not guarantee that any individual value is accurate, complete, or current, and the scores are guidance rather than a guarantee. For safety-, health-, legal-, or financially critical decisions, verify independently before you act.

10. Intellectual property

What the API returns, you may use in your own products, research, and workflows under a limited, non-exclusive, non-transferable right of internal use, for as long as your plan is active. What that does not include is reselling or redistributing the data onward — that needs a separate Enterprise or bulk contract.

As between you and us, YNOTS owns the Service and the commonspecs database as a collection — its structure, schemas, scoring, and rankings, and our investment in verifying and organising it — protected, among other things, by the sui generis database right under Directive 96/9/EC and the Polish Database Protection Act of 27 July 2001. That right attaches to the collection, not to the individual facts inside it: a single specification is a fact, and we make no ownership claim over it. What the right does cover, and what these Terms restrict, is the extraction or re-use of a substantial part of the database. The database itself is not published under any open or public licence, and nothing here places it in the public domain. “commonspecs” and our logos are our trademarks.

11. Availability and changes

The Service is provided on an “as available” basis. We do not provide an uptime service level except where expressly agreed in an Enterprise contract. We may modify, suspend, or discontinue features, and may introduce or change limits. Where a change would meaningfully reduce what your paid plan gives you, we tell you first and you can cancel — see Section 5 for what happens to the money.

12. Suspension and termination

You can stop using the Service and close your account at any time, and we stop charging you from that moment. On our side, we may suspend or terminate access for breach of these Terms, abuse, non-payment, chargeback, or legal or security reasons. Except where the law or an immediate security risk makes that impossible, we tell you why and give you a chance to fix it first. Provisions that by their nature should survive termination, including Sections 7, 9, 10, 13, 14, and 16, will survive.

13. Disclaimers and limitation of liability

To the maximum extent permitted by law, the Service is provided without warranties of any kind. We are not liable for indirect, incidental, or consequential damages, or for lost profits or data. Our total aggregate liability for any claim is limited to the fees you paid for the Service in the 12 months before the event giving rise to the claim. Nothing in these Terms limits liability that cannot be limited under applicable law, including liability for death, personal injury, or intentional fault.

14. Indemnification

You will indemnify YNOTS against third-party claims arising from your Contributions, your use of the Service in breach of these Terms, or your infringement of any third-party right.

15. Changes to these Terms

We may update these Terms. We will post the new version with a new “Last updated” date and, for material changes, give reasonable notice. If you do not accept a material change, you can cancel before it takes effect, and continued use after that means you accept it.

16. Governing law and jurisdiction

These Terms are governed by the laws of Poland, excluding its conflict-of-laws rules and the UN Convention on Contracts for the International Sale of Goods (CISG). Disputes are subject to the jurisdiction of the courts competent for the registered seat of YNOTS. If you are a consumer, this does not move your case away from the courts of your own country — mandatory law decides that, and it wins over this section.

17. Contact

A real person reads contact@ynots.ai. YNOTS sp. z o.o. — contact@ynots.ai · +48 690 354 418 · KRS 0001191921.