Terms of Service

Last updated: May 9, 2026

These Terms of Service ("Terms") form a legally binding agreement between you (the "User", "you") and Esan Neural Computing (Eneco), operating as an individual sole proprietor under the laws of Spain, based in Donostia – San Sebastián, Spain ("Esan", "we", "us"). They govern your access to and use of the Esan website at esan.ai and the Esan AI agent product (together, the "Service"). The tax identification number (NIF) and any further registration details are available on written request to hey@esan.ai.

By creating an account, signing in, or otherwise using the Service, you confirm that you have read, understood and accept these Terms. If you do not accept them, do not use the Service.

1. Description of the Service

Esan is an AI agent that, on your instruction, performs tasks such as searching the web, reading files you upload, executing code in isolated sandbox environments, and connecting to third-party services (Gmail, Google Drive, Google Calendar, GitHub, Slack, Notion and others) when you authorise such connection via OAuth. The Service is based on large language models hosted by third-party providers (currently Anthropic and OpenAI).

The Service is provided as software-as-a-service. You access it via a web browser; we manage updates centrally and may modify features at any time consistent with Section 11.

2. Eligibility and account

You must be at least 14 years old (the digital consent age in Spain) to create an account. By signing up you represent that you meet this age requirement and that the information you provide is accurate.

You are responsible for keeping your credentials confidential and for all activity under your account. Notify us immediately at hey@esan.ai if you suspect unauthorised access.

We may decline to provide the Service, or suspend an account, if we believe a user is in material breach of these Terms or applicable law, in accordance with Section 9.

3. Acceptable use

You agree not to use the Service to:

• Violate any applicable law or third-party right.
• Generate or distribute content that is unlawful (including child sexual abuse material, terrorist content, or content that infringes intellectual property), defamatory, harassing, or that incites violence.
• Attempt to bypass any safety, security or access controls, including the filters and confirmation gates built into the Service.
• Reverse-engineer, decompile or otherwise attempt to derive the source code, models or weights of the Service or its underlying providers, except to the extent expressly permitted by applicable law (e.g. Art. 100ter of the Spanish Intellectual Property Law for interoperability).
• Use the Service to develop a competing AI agent product, or to scrape or extract Esan's outputs in bulk for the purpose of training another AI system.
• Send requests at a volume that disrupts or attempts to disrupt the Service or its infrastructure.
• Engage in any AI practice prohibited by Art. 5 of the EU AI Act, including subliminal manipulation, exploitation of vulnerabilities, social scoring or untargeted scraping of biometric data.

4. Your content

You retain all rights in the messages, files and other material you submit to the Service ("User Content"). You grant us a limited, non-exclusive, royalty-free licence to process User Content solely as necessary to operate the Service for your benefit (e.g. forwarding it to LLM providers for inference, storing it in your chat history, generating outputs you request).

You represent that you have all rights necessary to upload or submit User Content to the Service. You are solely responsible for ensuring that User Content does not infringe third-party rights or applicable law.

5. AI-generated outputs

Outputs generated by Esan in response to your prompts ("Outputs") are made available to you. Subject to your compliance with these Terms and the rights of third parties, you may use Outputs for any lawful purpose. We do not claim ownership of Outputs you receive.

Outputs are produced probabilistically and may be inaccurate, incomplete, biased or out of date. Outputs do not constitute professional advice (legal, medical, financial, tax, engineering or otherwise). You are responsible for independently verifying any Output before relying on it.

Different users may receive identical or substantially similar Outputs in response to similar prompts. You may not rely on the uniqueness of any Output and you may not represent Outputs as having been created by a human if they were not.

Outputs may be subject to third-party rights (e.g. trademark, copyright). You are responsible for assessing whether the use of an Output infringes such rights.

6. Third-party connectors

The Service can connect to third-party services (Gmail, Google Drive, Google Calendar, GitHub, Slack, Notion and others) that you authorise. When you authorise a connection, you grant us the OAuth permissions necessary to perform the actions you request. We process the data we receive from these third parties in accordance with our Privacy Policy and the providers' own terms.

Third-party services are governed by their own terms; we are not responsible for the availability, accuracy or security of third-party services. You may revoke our access at any time from your provider's account settings or from the Esan Connectors page (Settings → Connectors → Disconnect).

7. Subscriptions, billing and refunds

The Service may be offered free of charge with usage limits and as paid subscription plans. Plan features, pricing and usage limits are described on the Pricing page and may be updated; existing subscriptions continue under their original terms until renewal.

Paid plans renew automatically at the end of each billing cycle until cancelled. You can cancel at any time from the Settings page; cancellation takes effect at the end of the current cycle.

Consumers in the European Economic Area have the right to withdraw from a contract within 14 days under Art. 102 of the Spanish TRLGDCU. By starting to use a paid plan immediately after subscribing, you expressly request the immediate provision of digital services and acknowledge that your right of withdrawal is lost once execution has begun, in accordance with Art. 103(m) TRLGDCU.

We do not provide refunds for partially used billing cycles except where required by applicable law.

8. Intellectual property

The Service, including its software, design, brand and documentation, is owned by Esan or its licensors and is protected by intellectual property law. We grant you a limited, non-exclusive, non-transferable licence to use the Service for its intended purpose subject to these Terms.

"Esan" and the Esan logo are our trademarks. You may not use them without our prior written consent.

9. Suspension and termination

You may close your account at any time from the Settings page; deletion takes effect immediately for the active row, with backup purge within 30 days as described in our Privacy Policy.

We may suspend or terminate your account, with notice where practicable, if you materially breach these Terms, if your use threatens the security or integrity of the Service or other users, or if we are required to do so by law. Where the breach is curable we will give you a reasonable opportunity to cure it before terminating.

10. Disclaimers

To the maximum extent permitted by applicable law, the Service is provided "as is" and "as available". We do not warrant that the Service will be uninterrupted, error-free, or that Outputs will meet your specific requirements. Nothing in these Terms excludes or limits any liability that cannot be excluded or limited under applicable law (including, for consumers, the warranties on conformity of digital services under Art. 115ter TRLGDCU).

11. Limitation of liability

To the maximum extent permitted by law, Esan's total aggregate liability arising out of or in connection with these Terms or the Service, whether in contract, tort (including negligence) or otherwise, shall not exceed the greater of: (a) the amount you paid us in the twelve months preceding the event giving rise to the claim, or (b) one hundred euros (€100).

Neither party shall be liable for indirect, incidental, special or consequential damages, or for loss of profits, revenue, data or goodwill. This limitation does not apply to: (i) liability for fraud, gross negligence or wilful misconduct; (ii) personal injury or death; (iii) any other liability that cannot be limited under applicable law.

12. Indemnification

You agree to indemnify and hold Esan, its officers, employees and agents harmless from any third-party claim arising out of (a) your User Content, (b) your use of the Service in violation of these Terms or applicable law, or (c) your violation of any third-party right. We will notify you promptly of any such claim and cooperate reasonably with your defence.

13. Modifications to the Service and these Terms

We may modify the Service and these Terms from time to time. Material changes to the Terms will be communicated via email and an in-product notice at least 14 days before they take effect, except where a change is required by law or for urgent security reasons (in which case we will notify you as soon as possible). Your continued use of the Service after the change becomes effective constitutes acceptance of the modified Terms.

14. Governing law and jurisdiction

These Terms are governed by the laws of Spain, excluding its conflict-of-law rules and excluding the United Nations Convention on Contracts for the International Sale of Goods.

For consumers domiciled in the European Economic Area, nothing in this Section deprives you of the protection afforded by the mandatory provisions of the law of your country of habitual residence (Art. 6 Reg. (EC) 593/2008, Rome I).

Subject to the above, any dispute arising under these Terms will be submitted to the exclusive jurisdiction of the courts of Donostia – San Sebastián, Spain. Consumers may alternatively bring proceedings before the courts of their country of residence. Consumers may also use the European Online Dispute Resolution platform at ec.europa.eu/consumers/odr.

15. Notices

Notices to us must be sent to hey@esan.ai with copy to the postal address above. Notices to you will be delivered to the email associated with your account.

16. Miscellaneous

• Entire agreement. These Terms together with our Privacy Policy constitute the entire agreement between you and Esan regarding the Service.
• Severability. If any provision is held unenforceable, the remaining provisions remain in full effect, and the unenforceable provision will be replaced by an enforceable one that most closely reflects the original intent.
• Assignment. You may not assign these Terms. We may assign them to an affiliate or successor in connection with a merger, acquisition or sale of assets, subject to applicable consumer-protection law.
• No waiver. Failure to enforce any right is not a waiver of that right.
• Force majeure. Neither party is liable for delay or failure to perform due to causes beyond its reasonable control.
• Language. These Terms are provided in English. A Spanish translation may be made available; in case of conflict, the English version prevails for interpretation, except where Spanish law mandates the Spanish version for consumers.

17. Contact

Esan Neural Computing (Eneco)
Donostia – San Sebastián, Spain
Email: hey@esan.ai

Tax identification number (NIF) is available on written request to the contact address above for any data subject exercising their rights or any supervisory authority.