Terms of Service

These Terms of Service ("Terms") constitute a legally binding agreement between you ("Customer", "you", "your") and NAHNOVA, operated by Noa Heutz, registered with the Dutch Chamber of Commerce under KVK number 82385874 ("NAHNOVA", "we", "us", "our"), governing your access to and use of the Corthex platform ("Service") available at www.corthex.app.

1. Acceptance of Terms

By creating an account, accessing, or using the Service, you acknowledge that you have read, understood, and agree to be bound by these Terms and our Privacy Policy. If you are accepting these Terms on behalf of a company or other legal entity, you represent that you have the authority to bind that entity.

If you do not agree with any part of these Terms, you must not access or use the Service.

2. Definitions

• "Service" means the Corthex platform, including the web application, APIs, embeddable widget, and all related documentation.
• "Customer Content" means any data, documents, text, files, or other materials you upload, submit, or transmit to the Service, including knowledge base documents and bot configurations.
• "End Users" means any individuals who interact with your AI assistants through the embeddable widget or other integrations.
• "AI Output"means any text, responses, or content generated by the Service's AI models in response to user queries.
• "Organization" means the entity, company, or team under which you operate within the Service.
• "Subscription Plan" means the specific tier of service (Free, Pro, Business, or Enterprise) you have selected.

3. Service Description

Corthex is a multi-tenant B2B SaaS platform that enables you to deploy custom-branded AI assistants grounded in your proprietary knowledge bases. The Service includes:

• Multi-format document ingestion (PDF, DOCX, URL, plain text)
• AI-powered chat with Retrieval-Augmented Generation (RAG)
• Embeddable chat widget for third-party websites
• RESTful developer API with streaming support
• Usage analytics and conversation history
• Multi-tenant organization management

The specific features available to you depend on your Subscription Plan.

4. Account & Registration

4.1. You must provide accurate, current, and complete information during registration and keep your account information updated.

4.2. You are responsible for maintaining the confidentiality of your account credentials, API keys, and any activity that occurs under your account. You must notify us immediately at info@nahnova.com of any unauthorized access.

4.3. You may not share, transfer, or sell your account to another party without our prior written consent.

4.4. We reserve the right to suspend or terminate accounts that violate these Terms, at our sole discretion.

5. Subscriptions & Payment

5.1. Plans. The Service is offered in multiple tiers: Free, Pro, Business, and Enterprise. Current pricing and feature comparisons are available on our Pricing page.

5.2. Billing cycle. Paid subscriptions are billed monthly or annually in advance. All fees are stated in US Dollars (USD) unless otherwise specified.

5.3. Payment processing.All payments are processed by Stripe. By providing payment information, you agree to Stripe's Terms of Service. We do not store your full payment card details.

5.4. Usage limits.Each plan includes a message quota per billing cycle. Usage exceeding your plan's limits will result in message delivery being paused until the next billing cycle or until you upgrade.

5.5. Price changes.We reserve the right to modify pricing with 30 days' notice. Price changes take effect at the start of your next billing cycle.

5.6. Refunds. Payments are non-refundable except where required by applicable Dutch or EU consumer law, or at our sole discretion. Partial-month refunds are not provided for mid-cycle cancellations.

5.7. Taxes. All fees are exclusive of taxes. You are responsible for all applicable taxes, duties, and levies (excluding taxes based on our net income). If we are required to collect or remit VAT, it will be added to your invoice.

5.8. Late payment.Invoices are due upon receipt. Accounts with overdue payments may be suspended after 14 days' notice. We reserve the right to charge statutory interest on late payments in accordance with Dutch law (Art. 6:119a BW).

6. Acceptable Use Policy

You agree not to use the Service to:

• Violate any applicable law, regulation, or third-party rights
• Upload content that is unlawful, defamatory, obscene, or infringes intellectual property rights
• Distribute malware, viruses, or any code designed to disrupt the Service
• Attempt to gain unauthorized access to other users' data, accounts, or systems
• Circumvent, disable, or interfere with rate limits, usage quotas, or security features
• Use the Service for competitive benchmarking or to build a competing product
• Resell, sublicense, or redistribute access to the Service without our written consent
• Use the Service to generate content that impersonates real individuals without their consent
• Scrape, crawl, or extract data from the Service through automated means beyond the provided API
• Deploy bots that provide medical, legal, or financial advice without appropriate disclaimers and professional oversight

We reserve the right to investigate violations, remove content, and suspend or terminate accounts at our sole discretion without prior notice.

7. Your Content & Data

7.1. Ownership. You retain all rights, title, and interest in your Customer Content. These Terms do not grant us any ownership rights in your content.

7.2. License to us. By uploading Customer Content, you grant NAHNOVA a non-exclusive, worldwide, royalty-free license to host, store, process, and display your content solely as necessary to provide the Service. This includes creating vector embeddings, retrieving relevant context for AI responses, and displaying content within your dashboard and widget.

7.3. Your responsibility. You are solely responsible for the legality, accuracy, and appropriateness of all Customer Content. You represent and warrant that you have all necessary rights and permissions to upload and use your content with the Service.

7.4. Data isolation. Customer Content is stored in tenant-isolated database partitions with Row-Level Security (RLS) policies. Your data is never accessible to other organizations on the platform.

7.5. Data portability. Upon request, we will provide an export of your data in a standard format within 30 days, subject to technical feasibility.

7.6. Deletion. Upon termination, we will delete your Customer Content within 30 days, except where retention is required by law or for legitimate business purposes (such as billing records).

8. Intellectual Property

8.1. Our IP.The Service, including its source code, design, user interface, documentation, branding, trademarks, trade names ("Corthex", "NAHNOVA"), logos, and all related intellectual property, are and remain the exclusive property of NAHNOVA. Nothing in these Terms transfers any intellectual property rights to you.

8.2. Feedback. If you provide suggestions, ideas, or feedback about the Service, you grant us an irrevocable, perpetual, royalty-free, worldwide license to use, modify, and incorporate such feedback without any obligation to you.

8.3. Restrictions. You may not copy, modify, reverse engineer, decompile, disassemble, or create derivative works of the Service, except to the extent that such restriction is prohibited by applicable law (including Art. 6 of the EU Software Directive 2009/24/EC).

9. AI Output Disclaimer

9.1. AI Output is generated by third-party large language models and is provided "as is". While the Service uses Retrieval-Augmented Generation (RAG) to ground responses in your knowledge base, AI Output may contain inaccuracies, errors, or incomplete information.

9.2. You acknowledge and agree that:

• AI Output does not constitute professional advice (legal, medical, financial, or otherwise)
• You are solely responsible for reviewing, validating, and approving all AI Output before presenting it to End Users or relying on it for any purpose
• NAHNOVA is not liable for any decisions made or actions taken based on AI Output
• AI models may occasionally produce unexpected, inaccurate, or biased responses despite RAG grounding

9.3. You are responsible for implementing appropriate disclaimers for your End Users regarding the AI-generated nature of responses.

10. Service Availability

10.1. We aim to provide a reliable and high-quality Service but do not guarantee uninterrupted or error-free operation. The Service is provided on an "as available" basis.

10.2. We may perform scheduled maintenance with reasonable advance notice. Emergency maintenance may be performed without prior notice.

10.3. The availability and performance of the Service depend in part on third-party providers (Supabase, Stripe, Clerk, AI model providers, Vercel). We are not responsible for outages or degradation caused by these third parties.

10.4. Free plan accounts may experience lower priority during periods of high demand.

11. Limitation of Liability

11.1. Cap.To the maximum extent permitted by Dutch law, NAHNOVA's total aggregate liability arising out of or in connection with the Service, these Terms, or any related claim (whether in contract, tort, or otherwise) shall not exceed the total fees paid by you to NAHNOVA in the twelve (12) months preceding the event giving rise to the claim, or EUR 500, whichever is greater.

11.2. Exclusions. To the maximum extent permitted by law, NAHNOVA shall not be liable for any:

• Indirect, incidental, special, or consequential damages
• Loss of profits, revenue, data, or business opportunities
• Cost of substitute goods or services
• Damages resulting from unauthorized access to or alteration of your data
• Damages resulting from AI Output inaccuracies
• Damages arising from third-party service outages or failures

11.3. Exceptions.Nothing in these Terms limits NAHNOVA's liability for (a) death or personal injury caused by our negligence, (b) fraud or fraudulent misrepresentation, (c) willful misconduct or gross negligence (opzet of bewuste roekeloosheid), or (d) any liability that cannot be limited under mandatory Dutch law.

12. Indemnification

You agree to indemnify, defend, and hold harmless NAHNOVA, its owner, and affiliates from any claims, damages, losses, costs, and expenses (including reasonable legal fees) arising from:

• Your use of the Service or violation of these Terms
• Your Customer Content, including any claim that it infringes third-party rights
• Your End Users' use of AI assistants deployed through your account
• Any claim related to the accuracy or appropriateness of AI Output generated using your knowledge base
• Your failure to comply with applicable laws or regulations

13. Termination

13.1. By you. You may cancel your subscription at any time through the billing settings or by contacting us. Your access continues until the end of your current billing period.

13.2. By us. We may suspend or terminate your access immediately, without prior notice, if:

• You breach any provision of these Terms
• Your payment is overdue by more than 14 days
• Your use poses a security risk or may cause harm to other users
• We are required to do so by law or a governmental authority
• We discontinue the Service (with 90 days' notice for paid plans)

13.3. Effect of termination. Upon termination: (a) your right to access the Service ceases immediately; (b) we will delete your Customer Content within 30 days (except as required by law); (c) outstanding fees remain due; (d) Sections 7.1, 8, 9, 11, 12, 14, and 16 survive termination.

13.4. Free plan accounts.We reserve the right to delete Free plan accounts that have been inactive for more than 90 consecutive days, with 14 days' prior notice via email.

14. Confidentiality

14.1. Each party agrees to keep confidential any non-public information disclosed by the other party ("Confidential Information"), including business plans, technical data, and customer lists.

14.2. Confidential Information does not include information that is (a) publicly available, (b) already known to the receiving party, (c) independently developed, or (d) lawfully obtained from a third party.

14.3. This obligation survives termination for a period of three (3) years.

15. Modifications to Terms

15.1. We reserve the right to modify these Terms at any time. We will provide at least 30 days' notice of material changes via email or a prominent notice on the Service.

15.2. Your continued use of the Service after the effective date of any modification constitutes acceptance of the revised Terms. If you disagree with the changes, your sole remedy is to terminate your account before the effective date.

15.3. Non-material changes (such as typographical corrections or formatting updates) may be made without notice.

16. Governing Law & Dispute Resolution

16.1. These Terms are governed by and construed in accordance with the laws of the Netherlands, without regard to its conflict of law provisions.

16.2. The United Nations Convention on Contracts for the International Sale of Goods (CISG) is expressly excluded.

16.3. Any disputes arising from or in connection with these Terms shall be submitted to the exclusive jurisdiction of the competent court in Amsterdam, the Netherlands.

16.4. Before initiating formal proceedings, both parties agree to attempt to resolve disputes through good-faith negotiation for a period of at least 30 days.

17. Miscellaneous

17.1. Entire agreement. These Terms, together with the Privacy Policy, constitute the entire agreement between you and NAHNOVA regarding the Service and supersede all prior agreements and understandings.

17.2. Severability. If any provision of these Terms is held to be invalid or unenforceable by a court of competent jurisdiction, the remaining provisions shall remain in full force and effect. The invalid provision shall be replaced by a valid provision that most closely achieves the intended economic effect.

17.3. No waiver. Our failure to enforce any right or provision of these Terms shall not constitute a waiver of that right or provision.

17.4. Assignment. You may not assign or transfer your rights or obligations under these Terms without our prior written consent. We may assign our rights and obligations without restriction.

17.5. Force majeure. NAHNOVA shall not be liable for any failure or delay in performance due to circumstances beyond its reasonable control, including natural disasters, pandemics, government actions, internet outages, third-party service failures, or cyberattacks.

17.6. Notices. All notices under these Terms shall be sent to the email address associated with your account. Notices to us should be directed to info@nahnova.com.

17.7. Language. These Terms are drafted in English. In the event of a conflict between translations, the English version prevails.

18. Contact