Last updated: March 17, 2026
By accessing or using OpusMax ("the Service"), you agree to be bound by these Terms of Use. If you do not agree to these terms, do not use the Service. The Service is operated by OpusMax ("we", "us", "our").
OpusMax is an API gateway that provides managed access to AI language models through an Anthropic-compatible API interface. The Service includes API proxying, key management, usage tracking, rate limiting, and related tools.
You agree not to use the Service to:
The Service enforces per-key usage limits including token budgets (5-hour rolling windows) and rate limits (requests per minute). These limits are configured by your administrator and may change at any time. When limits are reached, requests will be rejected until the window resets. We are not liable for any disruption caused by hitting usage limits.
The Service operates as a transparent proxy. We do not store, log, or retain the content of your API requests or responses. Prompt text, messages, images, file contents, and model outputs pass through our servers and are not persisted. We only store minimal operational metadata necessary to enforce usage limits: token counts, timestamps, model names, and HTTP status codes. See our Privacy Policy for details.
We strive to maintain high availability but do not guarantee uninterrupted or error-free operation. The Service is provided on an "as-is" and "as-available" basis. We may perform maintenance, updates, or modifications that temporarily affect availability. We are not liable for any downtime, latency, or service interruptions.
The Service routes requests to third-party AI model providers. We do not control these upstream services and are not responsible for their availability, accuracy, content policies, or any changes to their APIs. Your use of the Service is also subject to the terms and policies of the upstream model providers.
You retain ownership of all content you send through the Service. We claim no ownership or license over your prompts, messages, or the AI-generated outputs you receive. The OpusMax brand, logo, and website content are our property and may not be reproduced without permission.
To the maximum extent permitted by law, OpusMax and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of profits, data, or business opportunities, arising from your use of the Service. Our total liability for any claim arising from these terms shall not exceed the amount you paid for the Service in the 30 days preceding the claim, or $50 USD, whichever is less.
The Service is provided "as is" without warranties of any kind, whether express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will meet your requirements, be available without interruption, or be free of errors.
We may terminate or suspend your access to the Service at any time, without notice, for conduct that we believe violates these Terms or is harmful to other users, us, or third parties. Upon termination, your right to use the Service ceases immediately. Provisions that by their nature should survive termination shall survive.
We reserve the right to modify these Terms at any time. Changes take effect when posted on this page. Continued use of the Service after changes constitutes acceptance of the new Terms. We encourage you to review this page periodically.
These Terms shall be governed by and construed in accordance with applicable laws, without regard to conflict of law principles. Any disputes arising from these Terms shall be resolved through good-faith negotiation before pursuing other remedies.
If you have questions about these Terms, please contact your administrator or the OpusMax team through the appropriate support channels.