Terms of Service
Effective Date: October 13, 2025
Welcome to ChunkBack! These Terms of Service ("Terms") govern your access to and use of ChunkBack's services, including our website, API, and related services (collectively, the "Service"). By accessing or using the Service, you agree to be bound by these Terms.
1. About the Service
ChunkBack is a mock API provider for LLM (Large Language Model) providers, operated by Nob Hill Labs. Our Service is located at 946 Stockton Street and provides API testing and development tools for developers working with AI language models.
2. Eligibility
You must be at least 13 years old to use the Service. By agreeing to these Terms, you represent and warrant that you are at least 13 years of age. If you are under 18, you represent that you have your parent or guardian's permission to use the Service.
3. Account Registration
To access certain features of the Service, you must register for an account. You agree to provide accurate, current, and complete information during registration and to update such information to keep it accurate, current, and complete. You are responsible for safeguarding your account credentials and for any activities or actions under your account.
4. Service Plans and Pricing
ChunkBack offers the following service tiers:
• Free Tier: 1,000 requests per month, 60 requests per minute, no credit card required
• Paid Tier ($20/month): Unlimited requests, 120 requests per minute, priority support
Usage limits and pricing are subject to change. We will provide notice of any material changes to pricing or usage limits. Paid subscriptions are billed monthly and will automatically renew unless cancelled before the renewal date.
5. Payment and Refunds
Paid subscriptions are charged in advance on a monthly basis. All fees are non-refundable except as required by law or as otherwise stated in our refund policy. You are responsible for providing current, complete, and accurate billing information.
6. Acceptable Use
You agree to use the Service only for lawful purposes and in accordance with these Terms. You agree not to:
• Use the Service in any way that violates any applicable federal, state, local, or international law or regulation
• Attempt to interfere with, compromise the system integrity or security, or decipher any transmissions to or from the servers running the Service
• Take any action that imposes an unreasonable or disproportionately large load on our infrastructure
• Use the Service to transmit, or procure the sending of, any advertising or promotional material without our prior written consent
• Impersonate or attempt to impersonate ChunkBack, a ChunkBack employee, another user, or any other person or entity
7. API Keys and Security
You are responsible for maintaining the confidentiality of your API keys and for all activities that occur using your API keys. You agree to notify us immediately of any unauthorized use of your API keys or any other breach of security.
8. Service Availability
We strive to provide reliable service, but we do not guarantee that the Service will be uninterrupted, timely, secure, or error-free. We do not currently provide a service level agreement (SLA) or uptime guarantee. We reserve the right to modify, suspend, or discontinue the Service at any time without notice.
9. Intellectual Property
The Service and its original content, features, and functionality are owned by Nob Hill Labs and are protected by international copyright, trademark, patent, trade secret, and other intellectual property laws. You may not use our trademarks or branding without our prior written permission.
10. Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL NOB HILL LABS, ITS AFFILIATES, AGENTS, DIRECTORS, EMPLOYEES, SUPPLIERS, OR LICENSORS BE LIABLE FOR ANY INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES ARISING OUT OF OR IN CONNECTION WITH YOUR USE OF THE SERVICE.
11. Indemnification
You agree to defend, indemnify, and hold harmless Nob Hill Labs and its licensee and licensors, and their employees, contractors, agents, officers, and directors, from and against any and all claims, damages, obligations, losses, liabilities, costs, or debt, and expenses arising from your use of the Service or violation of these Terms.
12. Termination
We may terminate or suspend your account and access to the Service immediately, without prior notice or liability, for any reason, including if you breach these Terms. Upon termination, your right to use the Service will immediately cease.
13. Governing Law
These Terms shall be governed by and construed in accordance with the laws of the United States and the State of California, without regard to its conflict of law provisions. Any disputes arising from these Terms or the Service shall be resolved in the state or federal courts located in San Francisco County, California.
14. Changes to Terms
We reserve the right to modify or replace these Terms at any time. If a revision is material, we will provide at least 30 days' notice prior to any new terms taking effect. Your continued use of the Service after the effective date of revised Terms constitutes acceptance of those changes.
15. Contact Us
If you have any questions about these Terms, please contact us at: