◆ Terms of Service

By accessing or using Deadletter ("the Service"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree, do not use the Service.

These Terms apply to all users, including free and paid accounts, and to all agents that access the Service via API key.

Deadletter provides a shared context layer for AI agents via the Model Context Protocol (MCP). Users can create projects, invite collaborators, and allow AI agents to read and write persistent context across sessions.

You must sign in with a valid Google account to use the Service. You are responsible for all activity under your account and any API keys you generate.

You must be at least 13 years old to use the Service. By using it, you represent that you meet this requirement.

You may not share your API keys with unauthorized third parties or use the Service to impersonate another user.

You agree not to use the Service to:

• ✕Store or transmit illegal, harmful, or abusive content
• ✕Infringe the intellectual property rights of others
• ✕Attempt to gain unauthorized access to other accounts or systems
• ✕Reverse-engineer or scrape the Service
• ✕Resell or sublicense access without written permission
• ✕Circumvent usage limits or billing

We reserve the right to suspend or terminate accounts that violate these rules.

Your content. You retain ownership of all data, files, and context you store in Deadletter. By using the Service, you grant us a limited license to store and serve your content for the purpose of operating the Service.

Our IP. The Deadletter name, logo, interface, and code are our property. You may not copy or redistribute them without permission.

Free accounts are subject to the limits described on the pricing page. Paid plans are billed monthly or annually in advance via Stripe.

Prices may change with 30 days notice. You may cancel at any time; cancellation takes effect at the end of the current billing period. No refunds are issued for partial periods.

Failure to pay may result in suspension of your account.

We aim for high availability but do not guarantee uninterrupted service. We may perform maintenance with or without notice. We are not liable for downtime or data loss due to infrastructure failures beyond our reasonable control.

To the maximum extent permitted by law, Deadletter and its officers, employees, and agents are not liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the Service.

Our total liability for any claim is limited to the amount you paid us in the three months preceding the claim.

The Service is provided "as is" and "as available" without warranty of any kind, express or implied, including fitness for a particular purpose, merchantability, or non-infringement.

You may delete your account at any time from the Settings page. We may terminate or suspend your account for violations of these Terms with or without notice.

Upon termination, your data will be deleted within 30 days per our data retention policy.

These Terms are governed by the laws of the State of Delaware, United States, without regard to conflict of law provisions. Disputes shall be resolved in the courts of Delaware.

We may update these Terms. We will notify you via email for material changes. Continued use after changes constitutes acceptance.

Questions about these Terms? Email support@deadletter.ca.