lumen

Terms of Service

Effective date: 19 April 2026

These Terms of Service (“Terms”) form a binding agreement between you and Robert Watkiss, a sole trader established in the United Kingdom (“Lumen”, “we”, “us”, or “our”), governing your access to and use of the Lumen service (the “Service”). By accessing or using the Service you agree to these Terms. If you are using the Service on behalf of an organisation, you represent that you have authority to bind that organisation to these Terms.

1. Eligibility and access

The Service is provided to business users by invitation only. To use the Service you must be at least 18 years old, have received an invitation from a workspace administrator, and be authorised to act on behalf of the organisation that engaged Lumen.

Commercial access is granted under a separate written contract between your organisation and Lumen (an “Order”). Where these Terms conflict with an Order, the Order prevails.

2. The Service

Lumen is an AI assistant that helps users query, analyse, and act on data through integrations with third-party systems. The Service relies on third-party providers (including Anthropic, Cloudflare, and Google; see our Privacy Policy for the full list) and will continue to evolve. We may add, change, or remove features at any time, though we will not materially reduce the Service’s functionality during the term of an Order without notice.

3. Accounts and credentials

You are responsible for maintaining the confidentiality of your login credentials and for all activity conducted under your account. Notify us without delay at support@asklumen.ai if you suspect any unauthorised access.

4. Acceptable use

You agree not to:

  • use the Service to process personal data unlawfully, or in breach of any applicable law or third-party right;
  • upload, generate, or transmit content that is illegal, defamatory, infringing, malicious, or harmful;
  • attempt to bypass rate limits, authentication, or any other technical control, or probe, scan, or test the vulnerability of the Service without our prior written consent;
  • reverse engineer, resell, or make the Service available to parties outside your organisation without our written consent;
  • use the Service to generate content designed to mislead, harass, or impersonate others, or to produce material that infringes the rights of others;
  • interfere with the operation of the Service or the underlying infrastructure, or introduce malicious code.

You must also comply with the acceptable use policies of any third-party model provider we route your requests to, including Anthropic’s usage policies.

5. Your content and data

As between you and Lumen, your organisation retains all rights in the conversations, prompts, files, and other data it submits or that Lumen generates on its behalf (“Customer Content”).

You grant Lumen a non-exclusive, worldwide, royalty-free licence to host, process, transmit, and display Customer Content solely to provide and operate the Service, to keep it secure, and to comply with applicable law.

You are responsible for ensuring that you have the rights and lawful bases necessary to submit Customer Content to the Service and to connect any third-party systems. We do not use Customer Content to train foundation models.

6. Third-party services and integrations

The Service connects to third-party services at your direction (for example, Slack, GitHub, Shopify, BigQuery, Amplitude, Axiom, Vercel, and Cursor). Your use of those services is governed by their own terms and privacy policies. Lumen is not responsible for third-party services, their availability, or the content they return. You are responsible for the credentials, permissions, and authorisations you grant and for any charges incurred with those providers.

7. AI output

Output produced by the Service is generated by large language models and may be inaccurate, incomplete, or otherwise unsuitable for a given purpose. You are solely responsible for reviewing output before relying on it, and for any decisions or actions you take based on it. The Service is not a substitute for professional advice (legal, medical, financial, or otherwise).

8. Fees

Fees, invoicing, taxes, and payment terms are set out in the Order between your organisation and Lumen. Unless the Order says otherwise, fees are non-refundable.

9. Confidentiality

Each party will protect the other’s confidential information with at least the same degree of care it uses to protect its own, and no less than reasonable care. Customer Content is treated as your organisation’s confidential information. This section does not apply to information that is (a) publicly known without breach of these Terms, (b) lawfully received from a third party without restriction, or (c) required to be disclosed by law, provided the recipient gives reasonable notice where permitted.

10. Intellectual property

Lumen and its licensors own all right, title, and interest in the Service, including the underlying software, models, designs, and trade marks. These Terms do not transfer any ownership rights except the limited licence expressly granted.

11. Feedback

If you send us feedback or suggestions, you grant us a perpetual, irrevocable, worldwide, royalty-free licence to use them without restriction. We are not obliged to keep feedback confidential.

12. Disclaimers

The Service is provided on an “as is” and “as available” basis. To the maximum extent permitted by law, Lumen disclaims all warranties, express or implied, including warranties of merchantability, fitness for a particular purpose, non-infringement, and any warranties arising from course of dealing or usage of trade. We do not warrant that the Service will be uninterrupted, error-free, or secure.

13. Limitation of liability

To the maximum extent permitted by law:

  • neither party is liable for any indirect, incidental, special, consequential, or punitive damages, or for loss of profits, revenue, data, or goodwill;
  • Lumen’s total aggregate liability in connection with the Service will not exceed the greater of £100 or the fees paid by your organisation to Lumen in the 12 months preceding the event giving rise to the claim.

Nothing in these Terms excludes or limits liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot be excluded under the laws of England and Wales.

14. Indemnity

You will indemnify and hold Lumen harmless from any claim, loss, or cost (including reasonable legal fees) arising from your breach of these Terms, your misuse of the Service, or Customer Content or third-party credentials you provide.

15. Term and termination

These Terms apply from the time you first use the Service and continue until terminated under the applicable Order or this section. We may suspend or terminate your access immediately if we reasonably believe you have breached these Terms or present a risk to the Service or its users. On termination, your right to access the Service ends and Customer Content is deleted in accordance with our Privacy Policy.

16. Changes to these Terms

We may update these Terms from time to time. Material changes will be communicated to your organisation’s administrator. Continued use of the Service after changes take effect constitutes acceptance.

17. Governing law and jurisdiction

These Terms and any dispute arising out of or in connection with them are governed by the laws of England and Wales. The parties submit to the exclusive jurisdiction of the courts of England and Wales, except that Lumen may seek injunctive or other equitable relief in any court of competent jurisdiction.

18. Miscellaneous

If any provision of these Terms is held unenforceable, the remainder will remain in effect. No waiver is effective unless in writing. You may not assign these Terms without our prior written consent; we may assign them to an affiliate or in connection with a merger, acquisition, or sale of assets. These Terms, together with any applicable Order and our Privacy Policy, form the entire agreement between the parties in respect of the Service.

19. Contact

Questions about these Terms: support@asklumen.ai.