This summary is for orientation only. You keep ownership of private work you create. We receive the limited rights needed to operate the Service. If you deliberately publish a snapshot to the public gallery, you dedicate the defined Published Snapshot to the public domain under CC0. That dedication is intended to be irrevocable.
1. Agreement to these Terms
These Terms of Service (the “Terms”) are an agreement between you and Dustin Byrne, doing business as KilnCat (“KilnCat,” “we,” “us,” or “our”), governing your access to KilnCat's websites, software, creative tools, browser studio, cloud document and collaboration features, generation and rendering systems, application programming interfaces, Model Context Protocol (“MCP”) tools, public galleries, and any related features, content, products, or services we make available (collectively, the “Service”).
By accessing or using the Service, creating an account, or purchasing a plan, you agree to these Terms and our Privacy Policy. If you use the Service for an organization, you represent that you are authorized to bind that organization, and “you” includes the organization. If you do not agree, do not use the Service.
2. The Service
KilnCat is an evolving creative-software platform for creating, editing, generating, previewing, rendering, managing, collaborating on, automating, publishing, and exporting digital content and assets. The Service may include procedural materials and textures, meshes and geometry, node-based documents, and other visual, creative, or technical workflows, together with related cloud, multiplayer, gallery, rendering, API, MCP, and agent-assisted features.
Features, limits, supported formats, and plan availability may change as the Service develops. Some features may be marked preview, beta, experimental, or early access and may be incomplete or change without the notice normally provided for mature features. We do not promise that a particular feature, integration, or file format will remain available forever. We will not materially reduce mature paid-plan benefits during a current paid period without an appropriate remedy; reductions normally take effect no earlier than the next renewal after notice.
3. Eligibility and accounts
You must be at least 18 years old and legally able to enter into a contract to use the Service. You may not use the Service if applicable law prohibits you from doing so.
You must provide accurate account information, including a valid email address and an appropriate public handle. You are responsible for activity under your account, for protecting passwords, OAuth authorizations, share links, API credentials, and MCP tokens, and for promptly telling us about suspected unauthorized access. Public handles are visible in places such as the gallery and may not impersonate others, violate their rights, or mislead people about affiliation.
You may not sell, lease, or transfer an account without our written permission. We may reclaim or require changes to handles that infringe rights, impersonate another person, are reserved for operational use, or violate these Terms.
4. Plans, billing, and cancellation
Free and paid plans may have different storage, collaboration, publication, rendering, usage, and automation limits. Current prices and included features are shown before checkout. Paid subscriptions renew automatically for the billing period disclosed at checkout until canceled.
- Polar processes checkout and payment credentials and acts as merchant of record where identified at checkout. You also agree to the terms presented by Polar during checkout.
- You authorize recurring charges, including applicable taxes, at the price and interval shown at checkout. We do not receive your full payment-card number.
- You can cancel through the customer portal linked from your KilnCat account. Cancellation takes effect at the end of the current paid period unless checkout terms or applicable law say otherwise.
- Fees already paid are nonrefundable except where required by law or expressly stated at checkout. Removing an account or stopping use does not itself cancel a subscription.
- We may change prices for a future renewal period after providing legally required notice. You can cancel before the new price takes effect.
Failed or reversed payments may result in loss of paid features. We will provide any grace period required by law or shown in your account. Export work you need before paid access ends.
5. Permission to use KilnCat
Subject to these Terms, we grant you a limited, nonexclusive, nontransferable, revocable right to access and use the Service for lawful personal or commercial creative work. This permission does not transfer ownership of KilnCat software, branding, documentation, templates, or other materials we provide.
Components distributed under an open-source license remain governed by that license. If an open-source license conflicts with these Terms for that component, the open-source license controls.
6. Your content and creative output
As between you and KilnCat, you retain your rights in the documents, graphs, document or asset names and titles, parameters, uploaded inputs, materials, textures, meshes, geometry, generated assets, renders, exports, and other material you submit to or create with the Service (“User Content”), except for material owned by someone else or already subject to another license.
You grant us a worldwide, nonexclusive, royalty-free license to host, copy, process, transmit, cache, render, resize, back up, and display User Content only as reasonably necessary to provide, secure, maintain, troubleshoot, improve, and support the Service and to follow your sharing and publication choices. We may sublicense those limited rights to service providers and recipients you authorize only as needed for those purposes, subject to the provider-processing practices disclosed below. Except for the provider handling expressly authorized in the next paragraph, this license lasts while the content is stored with us and for a reasonable backup, security, or legal-retention period afterward.
You represent that you have the rights needed to submit User Content and grant this license, and that using the content as you direct will not violate law or another person’s rights. You are responsible for reviewing exports and renders before using them in production. We do not claim ownership of your private documents merely because KilnCat processed them. User Content may be processed by service providers, including third-party LLM providers, only for the operational, support, security, development, and improvement purposes allowed by the limited license above and described in the Privacy Policy. You authorize us to submit User Content to those providers for those purposes subject to their applicable terms and settings, which may permit retention and service or model improvement. That additional authorization is limited to User Content actually submitted to a provider in connection with those purposes and to the provider handling disclosed in the Privacy Policy; provider copies may remain after the corresponding content is removed from KilnCat. It does not transfer ownership to KilnCat or authorize KilnCat to sell private User Content, use it for advertising, or disclose it publicly except at your direction.
Collaboration and share links
When you invite collaborators or create a share link, you direct us to make the relevant content available to those recipients. Anyone who receives a bearer-style public link may be able to use it until it is revoked, so share it carefully. Collaboration changes can affect the same cloud document and may be attributable to participating accounts.
7. Public gallery and CC0
Publishing is an explicit action separate from sharing private User Content. A “Published Snapshot” consists of the content and assets identified in the applicable publication flow, which may include documents, graphs, parameters, titles, materials, textures, meshes, geometry, generated files, renders, previews, and descriptive asset metadata. The confirmation shown before publication controls which of that creative content is included. Artist notes added or edited separately from that confirmation are mutable listing metadata, not part of the Published Snapshot, unless a publication confirmation expressly says otherwise. A Published Snapshot never includes your email address, account, public handle, account or social activity, KilnCat software or trademarks, or rights in third-party material.
When you publish, you represent that you have the right to do so and deliberately dedicate the Published Snapshot to the public domain under CC0 1.0 Universal. Other people may copy, modify, distribute, sell, and use it without copyright restriction to the extent of the rights you can dedicate under CC0. CC0 does not clear patent, trademark, privacy, publicity, or other rights held by you or third parties.
The CC0 dedication is intended to be irrevocable. Unpublishing hides the KilnCat listing but does not revoke the dedication or require anyone to delete a copy.
A publication is an immutable snapshot rather than access to your live private User Content. Republishing may add a new public revision while preserving publication history. We may remove or limit gallery visibility for legal, safety, operational, or moderation reasons without changing the rights already granted to recipients.
8. Acceptable use
You may not use the Service to:
- break the law, violate another person’s rights, or facilitate harmful conduct;
- upload, publish, or distribute infringing, deceptive, defamatory, abusive, or malicious material, including child sexual abuse material, nonconsensual intimate imagery, doxxing, credible threats, scams, or spam;
- compromise accounts, probe for vulnerabilities without authorization, spread malware, or interfere with the Service or another user;
- bypass access controls, billing entitlements, rate limits, rendering limits, or other technical restrictions;
- scrape, bulk-download, or automate the Service except through interfaces we make available for that purpose and within their documented limits;
- misrepresent generated output as another person’s work or use the Service in a way that infringes privacy, publicity, copyright, trademark, or other rights;
- evade moderation or enforcement, or encourage another person to do so; or
- resell access to the Service or use it to build a substantially competing hosted service unless we agree in writing.
Lawful security research, interoperability, and uses protected by applicable law are not prohibited merely because they involve technical investigation. Contact us before testing systems you do not own.
9. MCP, APIs, and automated actions
KilnCat may let MCP clients, scripts, and software agents inspect, modify, or render documents using permissions you grant. You are responsible for choosing clients, reviewing requested scopes, protecting tokens, and supervising automated activity. An agent action authorized through your account is treated as your action.
Automated output can be unexpected, destructive, incomplete, or unsuitable for production. Keep exports or backups when appropriate and review changes before relying on them. We may enforce rate, concurrency, storage, mutation, and rendering limits; reject unsafe or malformed requests; or revoke credentials used in violation of these Terms.
10. KilnCat materials and feedback
KilnCat and its licensors retain all rights in the Service, including software, site design, branding, documentation, and original templates, excluding your User Content and third-party material. “KilnCat” and associated marks may not be used in a way that suggests endorsement without permission.
If you voluntarily send feedback or suggestions, you grant us a perpetual, worldwide, royalty-free right to use them without restriction or compensation. Do not send feedback you consider confidential.
11. Copyright and rights complaints
If you believe content on KilnCat infringes your copyright or other rights, email [email protected] with identification of the work, the allegedly infringing material and its URL, your contact information, a good-faith statement explaining the claim, and any legally required signature and declarations. We may remove content, restrict access, or contact the uploader while reviewing a report. False or abusive reports may have legal consequences.
This process does not represent that KilnCat has designated an agent under any particular statutory safe-harbor program. We may adopt a more specific notice and counter-notice process if required.
12. Privacy
Our Privacy Policy explains how we collect, use, disclose, and retain information, including PostHog analytics, feature delivery and experiments, surveys, diagnostics and logs, data tools, AI-assisted analysis, support, and session replay. Please read it before using the Service.
13. Suspension, termination, and account closure
You may stop using KilnCat at any time and may request account deletion by emailing us. Subscription cancellation and account deletion are separate actions, and a deletion request does not by itself stop recurring charges. Cancel through the customer portal when possible, or email us for cancellation help if you cannot access it.
We may suspend or terminate access if you materially or repeatedly violate these Terms, create risk or legal exposure, fail to pay, abuse the Service, or if we must do so for legal or security reasons. When reasonable, we will provide notice and an opportunity to export private content, but urgent cases may require immediate action.
On termination, your permission to use the Service ends. Provisions that by their nature should survive do survive, including ownership, CC0 dedications already made, payment obligations, disclaimers, liability limits, dispute terms, and licenses needed for backups or legal compliance.
14. Third-party services
The Service may interoperate with services such as Google sign-in, Polar payments, PostHog product, reliability, feedback, data, support, and AI-assisted services, third-party LLM providers, email delivery providers, hosting and object-storage providers, and third-party MCP clients. Their services are governed by their own terms and privacy practices. We are not responsible for third-party services you choose to connect, but our handling of information received from them remains governed by our Privacy Policy. PostHog or another third-party LLM provider may process product events, prompts or responses, survey feedback, errors, logs, warehouse results, support records, User Content, and technical context to help us operate, support, secure, troubleshoot, develop, and improve KilnCat. Provider terms and account settings govern retention and whether submitted information may be used to improve services or models. Do not submit passwords, access tokens, payment details, or other secrets in surveys or support messages.
15. Disclaimers
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SERVICE AND ALL OUTPUT ARE PROVIDED “AS IS” AND “AS AVAILABLE.” KILNCAT DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, ACCURACY, AND UNINTERRUPTED OR ERROR-FREE OPERATION.
We do not warrant that generated assets, materials, textures, meshes, geometry, previews, renders, exports, collaboration state, automated edits, or third-party integrations will meet your requirements or remain available. You are responsible for backups, production review, license clearance, and determining whether output is suitable and safe for your use. Some jurisdictions do not allow certain disclaimers, so those disclaimers apply only to the extent allowed.
16. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, KILNCAT AND ITS AFFILIATES, CONTRACTORS, AND LICENSORS WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, DATA, CONTENT, GOODWILL, OR BUSINESS OPPORTUNITY, ARISING FROM OR RELATED TO THE SERVICE, EVEN IF ADVISED THAT SUCH DAMAGES ARE POSSIBLE.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, OUR TOTAL LIABILITY FOR ALL CLAIMS ARISING FROM OR RELATED TO THE SERVICE WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID FOR THE SERVICE DURING THE 12 MONTHS BEFORE THE EVENT GIVING RISE TO LIABILITY OR (B) US $100.
These limits do not apply to fraud, gross negligence, willful misconduct, or other liability that cannot legally be limited, and they do not reduce mandatory consumer rights.
17. Indemnity
To the extent permitted by law, you will defend, indemnify, and hold harmless KilnCat and its affiliates and contractors from third-party claims, damages, losses, liabilities, and reasonable costs arising from your User Content, your violation of these Terms, or your unlawful use of the Service. This obligation does not apply to the extent a claim results from KilnCat’s own unlawful conduct. We will provide reasonable notice and allow you to control the defense, subject to our right to participate with counsel of our choice.
18. Governing law and disputes
These Terms are governed by the laws of the Commonwealth of Massachusetts and the applicable federal laws of the United States, without regard to conflict-of-law rules. Unless applicable law requires otherwise, disputes must be brought in the state or federal courts located in Massachusetts, and you and KilnCat consent to their jurisdiction.
Before filing a claim, please email us and describe the dispute so we can try to resolve it informally. Nothing in these Terms prevents either party from seeking appropriate urgent injunctive relief or using an eligible small-claims process. Mandatory rights and venue protections available to consumers in their home jurisdiction remain unaffected.
19. Changes to these Terms
We may update these Terms to reflect Service, legal, or operational changes. We will update them when a change materially alters user rights or responsibilities, publication or content-license scope, paid obligations, or other subjects governed by these Terms. We will post the revised Terms and update the date above. If a change materially reduces your rights or increases your responsibilities, we will provide reasonable advance notice through the Service, email, or another appropriate channel. Changes apply prospectively from their stated effective date. If you do not agree to an update, you must stop using the Service and cancel any subscription before the change takes effect.
20. General terms
These Terms and policies incorporated by reference are the entire agreement about the Service unless a separate written agreement applies. If a provision is unenforceable, it will be modified only as much as necessary and the remaining provisions will continue. Our failure to enforce a provision is not a waiver. You may not assign these Terms without our consent; we may assign them as part of a merger, acquisition, financing, reorganization, or sale of the Service. Neither party is liable for delay caused by events beyond reasonable control.
21. Contact
Questions about these Terms can be sent to the address below. Messages may be handled through PostHog Support, and relevant content may be submitted to a third-party LLM provider as described in the Privacy Policy. Do not include passwords, access tokens, payment details, or other secrets.