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Terms of Service

The terms that govern your use of the chat.cx browser extension and website.

Updated on August 9, 2026

These terms govern your use of the chat.cx browser extension and its Pro license (“chat.cx”, “we”, “us”). By installing or using the extension, you agree to them. If you do not agree, do not use the extension.

1. What chat.cx is

chat.cx is a browser utility that puts AI chat services in one panel. It does two things:

  • Opens supported third-party AI websites (such as ChatGPT, Claude, or Gemini) inside a side panel, popup, or tab, where you use your own accounts with those services.
  • Provides a built-in chat interface for OpenAI-compatible API endpoints that you configure yourself.

chat.cx is an independent product. It is not affiliated with, endorsed by, or sponsored by OpenAI, Anthropic, Google, or any other AI provider. All product names and trademarks belong to their respective owners.

2. What chat.cx is not

chat.cx does not provide AI models, AI accounts, API access, or subscriptions to any third-party service. Access to a chatbot through the extension requires whatever account, subscription, or API key that provider requires from you directly. If a provider limits or blocks your account, changes its pricing, or discontinues a service, that is between you and the provider.

3. Third-party services

When you use an embedded chatbot, you are using that provider’s website under that provider’s own terms of service and acceptable use policies, and you are responsible for complying with them. Providers may change their sites, login flows, availability, rate limits, or compatibility at any time without notice, and such changes can affect or break how a site behaves inside the extension. We work to keep the catalog functional but cannot guarantee that any particular site will remain usable in a panel.

The same applies to optional web tool providers (such as DuckDuckGo, Tavily, Brave, Firecrawl, or Jina) and to any API endpoint you configure: your use of them is governed by their terms, not ours.

4. Your API keys and costs

API keys and endpoints you add to the extension are yours. You are responsible for keeping them valid, for the security of the device they are stored on, and for all charges your usage incurs with the key’s provider. Some features, such as image generation, call paid APIs; the extension asks for confirmation before image generation requests, but the costs are always yours.

5. Pro license

Some features are unlocked by a one-time purchase of a lifetime license (“Pro”).

  • Purchase: payment is processed by Creem, our merchant of record, in a normal browser tab. Your license key is delivered by email. Keep that email; it is your proof of purchase and your way to re-activate after a reinstall.
  • Scope: a license is for your personal use on a reasonable number of your own devices. Activations are limited to a fixed number of concurrent devices; activating on a new device beyond the limit may deactivate your oldest activation. A license may not be shared, resold, or published.
  • “Lifetime” means the lifetime of the product: no recurring fees for the features the license covers. It is not a promise that the product, or any third-party service it connects to, will exist or remain compatible forever.
  • Refunds and revocation: refunds are handled through Creem. A refunded, charged-back, or revoked key stops working. We may revoke keys that are leaked, resold, or obtained fraudulently.

6. Acceptable use

You agree to use chat.cx only for lawful purposes, and not to:

  • Violate the terms or abuse the services of any third-party provider you access through the extension.
  • Abuse, disrupt, overload, or attempt to defraud the license service.
  • Copy, modify, adapt, translate, or create derivative works from the extension or any part of it.
  • Reverse engineer, decompile, or disassemble the extension, or otherwise attempt to derive or reconstruct its source code, design, or underlying ideas.
  • Redistribute, publish, sublicense, rent, sell, or otherwise make the extension available to others, whether in original or modified form.
  • Circumvent, disable, or interfere with the license check or any feature gating, or use a license key you did not purchase.
  • Remove, obscure, or alter any copyright, trademark, or attribution notice in the extension.

Two limits on the list above, stated so the rest of it stands. It does not restrict anything applicable law expressly permits despite a contract term to the contrary, such as a statutory right to decompile for interoperability. And it does not apply to the third-party open-source components included in the extension, which are governed by their own licenses (section 7).

7. Intellectual property

The extension, its name, and its branding are ours, and are protected by copyright and trademark law. These terms give you a personal, non-exclusive, non-transferable, revocable right to install and use the extension as distributed; they do not transfer any ownership, and no rights are granted beyond those stated here.

The extension includes third-party open-source components, which remain the property of their respective authors and are licensed to you under their own terms, not these. Where such a license grants you rights that section 6 would otherwise restrict, that license governs for that component.

Content you create in conversations belongs to you or is governed by the relevant AI provider’s terms; we claim no rights over it and, as described in the Privacy Policy, we never see it.

8. Disclaimers

The extension is provided “as is” and “as available”, without warranties of any kind, express or implied, including fitness for a particular purpose and non-infringement. In particular:

  • AI-generated content can be wrong. Output from any chatbot or model you use through the extension is not our content and not advice; verify anything that matters.
  • We do not warrant that any third-party site will remain embeddable, that any provider will remain available, or that the extension will be uninterrupted or error-free.

9. Limitation of liability

To the maximum extent permitted by law, we are not liable for indirect, incidental, special, or consequential damages, loss of data, loss of profits, third-party service outages or account actions, API charges you incur, or payment processing issues. Our total liability for any claim relating to the extension is limited to the amount you paid us for your license, or zero if you use the free version. Nothing in these terms limits liability that cannot be limited under applicable law, and nothing affects consumer rights that applicable law grants you and does not allow to be waived.

10. Termination

You can stop using the extension at any time by uninstalling it; local data is removed with it. We may suspend a license that violates section 5 or 6. Sections that by their nature should survive (intellectual property, disclaimers, limitation of liability) survive termination.

11. Changes to these terms

We may update these terms as the product evolves. The “Last updated” date reflects the current version, and material changes will be called out in the extension’s release notes. Continuing to use the extension after a change means you accept the updated terms.

12. Contact

Questions about these terms: anan@chat.cx