Terms of Service

What DeadGraph is

DeadGraph is a knowledge base for the Grateful Dead's live concert history (1965-1995). It allows you to query information about shows, setlists, songs, recordings, and musicians via a conversational chat interface. DeadGraph uses artificial intelligence (AI) to answer questions. Answers can be wrong; check the show record.

The service offers a free tier and an optional paid Pro subscription (see "Subscriptions and billing" below). It is operated by an individual developer and carries no service level guarantees on any tier.

Acceptable use

You may use DeadGraph for personal, non-commercial purposes. You agree not to:

• Use automated scripts or bots to query the service at scale
• Scrape or systematically extract data from the service
• Attempt to circumvent rate limits, geographic restrictions, or authentication
• Use the service in any way that degrades performance or availability for other users
• Attempt to access the service from outside the United States (the service is US-only)
• Share or resell access to the service
• Use the service for any unlawful purpose

The service is intended for individual Dead fans and researchers. Bulk data access or API integration for commercial purposes is not permitted without explicit written permission.

AI-generated content and accuracy

DeadGraph uses AI to interpret queries and generate responses. While we take care to ground responses in verified data from the Internet Archive and public records, AI responses can contain errors, omissions, or inaccuracies.

• Do not rely on DeadGraph for authoritative or legally consequential information
• Setlist data, dates, and personnel information should be verified against primary sources
• The AI may occasionally misattribute songs, dates, or venues

Content and intellectual property

The knowledge base is built from public sources, primarily the Internet Archive, under licenses compatible with non-commercial use (Creative Commons CC0, CC-BY, CC-BY-NC, and Public Domain works).

• Concert data - dates, setlists, venues, and track listings are factual information in the public domain
• Audio - DeadGraph does not host, stream, or redistribute audio recordings
• Lyrics - song lyrics are not reproduced without permission
• DeadGraph branding - the DeadGraph name, logo, and site design are owned by the operator

The Grateful Dead name and related trademarks belong to their respective owners. DeadGraph is an independent fan project and is not affiliated with, endorsed by, or sponsored by the Grateful Dead or their management.

Rate limits and access restrictions

To ensure fair access for all users, the service applies rate limits on a per-user and per-IP basis. Free-tier and anonymous use carries a small daily question allowance; Pro subscriptions carry a substantially higher one. Current limits are published on the site and may change as the service scales. Attempts to circumvent these limits are grounds for suspension.

Access is currently restricted to users in the United States. This may change in the future.

Subscriptions and billing

DeadGraph Pro is an optional paid subscription ($8/month at the time of writing) that raises your daily question limit and includes the benefits described at the point of purchase.

• Payment processing - payments are processed by Polar (polar.sh) acting as merchant of record. Your purchase is completed with Polar, and your payment details (card numbers, billing address) are collected and processed by Polar under its own terms and privacy policy. DeadGraph never receives or stores your payment details.
• Renewal and cancellation - subscriptions renew automatically each month until canceled. You can cancel at any time via the billing portal; cancellation takes effect at the end of the current billing period, and your Pro access continues until then.
• Refunds - refund requests are handled through Polar in accordance with its refund policy. If you have a billing problem, contact support@deadgraph.com and we will help resolve it.
• Price changes - we may change subscription pricing with at least 30 days' notice; changes take effect at your next renewal, and you may cancel before they apply.

Service availability

DeadGraph is provided with no uptime guarantee, on both the free tier and Pro subscriptions. The service may be:

• Unavailable during maintenance or deployments
• Slow or degraded under high load
• Shut down or modified at any time without notice

We do not guarantee continuous availability and accept no liability for downtime or service interruptions.

Account suspension and termination

We reserve the right to suspend or terminate access for any account that:

• Violates these terms of service
• Abuses the service or degrades it for others
• Attempts unauthorized access or circumvents security measures

If a Pro subscription is terminated for a violation of these terms, no refund is owed for the remainder of the billing period. If we discontinue the service entirely, active subscribers will receive a pro-rata refund of any prepaid, unused period, processed through Polar.

Limitation of liability

DeadGraph is provided "as is" without warranties of any kind, express or implied. To the fullest extent permitted by law:

• We make no warranties about the accuracy, completeness, or fitness for purpose of the service
• We are not liable for any direct, indirect, incidental, or consequential damages arising from your use of the service
• Our total liability to you for any claim is limited to the amount you paid for the service in the twelve (12) months preceding the claim (zero for free-tier use)

Some jurisdictions do not allow exclusion of implied warranties or limitations of liability. In those jurisdictions, the above limitations apply to the maximum extent permitted by law.

Changes to these terms

We may update these terms as the service evolves. Changes will be reflected in the "Last updated" date at the top of this page. Continued use of the service after changes constitutes your acceptance of the updated terms.

Governing law

These terms are governed by the laws of the United States. Any disputes will be resolved in accordance with applicable US federal and state law.

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