Terms of Service

Last updated: 2026-03-28

1. Overview

derouter.ai provides access to AI language models (including Claude, GPT and others) through a prepaid credit-based system. By accessing or using our service you agree to be bound by these Terms of Service. If you do not agree, please do not use the service.

2. Account Registration

Users register with an email address and one-time password (OTP) verification. Each individual may maintain only one account. You are solely responsible for maintaining the confidentiality and security of your account credentials. Any activity conducted through your account is your responsibility.

3. Credits & Billing

  • Credits are purchased in advance ("prepaid") and may be paid via credit card, Cryptomus, or cryptocurrency. Payment processing fees, if any, are disclosed at checkout.
  • Credits are denominated in USD and deducted per API call based on token usage at the model's published per-million-token rates.
  • Pricing is displayed on our Pricing page and may change with 7 days' prior notice.
  • Credits do not expire.
  • The amount actually credited to your account is determined by the final settled amount received from the payment provider, which may differ from the originally requested amount in cases of overpayment, underpayment, or third-party processing adjustments.
  • Please refer to our Refund Policy for applicable refund terms.

4. Acceptable Use

You agree NOT to:

  • Use the service for any illegal activities;
  • Generate content that exploits minors;
  • Attempt to reverse engineer, attack, or disrupt the service or its infrastructure;
  • Resell access to the service without prior written authorization;
  • Circumvent rate limits or otherwise abuse the API;
  • Use the service to develop competing products using our infrastructure.

Violation of these terms may result in immediate account suspension or termination without refund.

5. Service Availability

The service is provided on an "as is" and "as available" basis. While we strive for high availability, we do not guarantee uninterrupted or error-free service. We reserve the right to modify, suspend, or discontinue any feature of the service with reasonable notice.

6. Technical Limitations & Request Handling

Concurrency limits

Certain models enforce per-key concurrent request limits. Requests exceeding the limit return HTTP 429 and should be retried with exponential backoff. Specific thresholds are not contractual and may change without notice.

Claude Code system prompt

derouter.ai is intended primarily to support the Claude Code client use case. Accordingly, requests routed to Claude models will have the Claude Code system prompt prepended to any system prompt you provide before the request is forwarded upstream. If your integration requires an unmodified system prompt, or you are using Claude through a non-Claude-Code client, derouter.ai may not be the right service for your workload.

7. Intellectual Property

Content generated through the service belongs to you, the user, subject to the terms and conditions of the underlying AI model providers (such as Anthropic and OpenAI). derouter.ai does not claim ownership of any user-generated content.

8. Limitation of Liability

To the maximum extent permitted by law, derouter.ai shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the service. Our total aggregate liability is limited to the amount of unused credits remaining in your account at the time of the claim.

9. Privacy

Your use of the service is also governed by our Privacy Policy, which describes how we collect, use, and protect your information.

10. Cookies

We use essential cookies only: a locale preference cookie (NEXT_LOCALE) and authentication session cookies. We do not use any tracking, analytics, or advertising cookies.

11. Changes to Terms

We may update these Terms of Service from time to time. We will notify users of material changes by posting the updated terms on this page. Continued use of the service after such changes constitutes your acceptance of the revised terms.

12. Contact

If you have any questions about these terms, please contact us at support@derouter.ai.