End User License Agreement

Last updated: 10 July 2026. The binding Commercial License Agreement (“EULA”) governing your purchase and use of Caisson software.

Parties and definitions

This End User License Agreement (“Agreement” or “EULA”) is between Caisson Software LLC, a Georgia limited liability company (“Caisson,” “we,” or “us”), and the individual or entity that purchases a Caisson software license (“Licensee” or “you”).

Definitions

• “Software” means the Caisson source code, the packages under the @caisson scope, related documentation, and any updates delivered under the license’s included updates window or an active updates subscription, as licensed to you under this Agreement.
• “Entitlement” means the record of which modules and bundles you are licensed to access, verified by a signed Ed25519 offline license key.
• “Order” means the purchase transaction completed through the Caisson storefront, processed by our merchant of record, that establishes your Entitlement.
• “Your Products” means the products or services you build using the Software.
• “Affiliate”means an entity that controls, is controlled by, or is under common control with you, where “control” means ownership of more than fifty percent (50%) of the voting interests of the entity or the power to direct its management.
• “Continuity Event”means the first to occur of any of: (i) Caisson publicly and formally announces the discontinuation or end-of-life of the Software or of the commercial Caisson product line as a whole; (ii) for a continuous period of twelve (12) months, Caisson fails to make available to its licensees generally any security patch or critical corrective update for the Software despite at least one publicly disclosed vulnerability or defect materially affecting the Software remaining unremediated during that period, and no successor has assumed responsibility for doing so; (iii) Caisson becomes insolvent, ceases business operations, makes a general assignment for the benefit of creditors, or a bankruptcy, receivership, or dissolution proceeding is commenced against it and is not dismissed within ninety (90) days; or (iv) Caisson is acquired, or its rights in the Software are sold or transferred, and the acquirer or successor does not, within ninety (90) days of the transaction, assume Caisson’s obligations under this Agreement (including the Vendor-continuity Section) in writing. A Continuity Event is not triggered by the lapse or non-renewal of your own updates window or Updates Subscription; clause (ii) concerns availability to licensees generally, not to you individually.

License grant

Subject to your compliance with this Agreement and full payment of applicable fees, Caisson grants you a perpetual, non-exclusive, worldwide, non-transferable (except as permitted under Assignment and transfer, below) license to use, modify, and integrate the Software identified in your Entitlement, for the purpose of developing, operating, and distributing Your Products. This license is identified by the SPDX license identifier LicenseRef-Caisson-Commercialin each licensed package's package.json.

The license is perpetual for the version of the Software covered by your Order. It does not expire and does not require renewal, periodic payment, or a network call to remain valid.

Restrictions

The license granted above is subject to the following restrictions. You agree not to:

• Redistribute, resell, sublicense, or publish the Software, in source or compiled form, as a standalone kit, boilerplate, library, or template, including one that competes with Caisson.
• Grant any third party access to the Software itself; your customers may use Your Products, not the underlying Caisson source.
• Remove or obscure license notices, copyright notices, SPDX identifiers, or attribution embedded in the Software.
• Use the Software to build a product whose primary purpose is to provide a competing compliance-infrastructure kit, boilerplate service, or source-code library.
• Use the Software except as expressly permitted by this Agreement.

For the avoidance of doubt, this Agreement permits unlimited use of the Software in commercial products you build and operate yourself, including products you sell to your own customers. Your customers interact with Your Products; they do not receive the Caisson source.

Entitlement and offline verification

Your Order generates an Entitlement record and a signed Ed25519 offline license key covering the modules and bundles purchased. The key is verified locally at install time and, for license-gated features, at runtime; no call home is required to exercise the perpetual license.

Entitlement is per purchasing entity. If you purchased as an individual, the Entitlement is yours; if you purchased on behalf of an organization, the Entitlement belongs to that organization and may be used by personnel you authorize to work on Your Products.

We may revoke an Entitlement issued in error, obtained fraudulently, or subject to a refund or chargeback. Revocation does not affect an Entitlement properly issued and paid for.

Fees and payment

Fees are as displayed on caisson.sh at the time of your Order and are processed through our merchant of record, who handles payment collection, tax calculation, and remittance for your jurisdiction. All fees are exclusive of taxes unless stated otherwise. Every purchase is covered by an unconditional 14-day money-back guarantee: request a refund within 14 days for any reason and the merchant of record returns your payment. See the Terms of Use for the full refund policy.

The perpetual license fee is a one-time charge that includes 12 months of updates from your Order date: registry access to any entitled-package version published in that window, plus everything already delivered. After that window, you may renew updates access for another 12 months at 40% of the then-current list price, or let it lapse; non-renewal never affects the perpetual license for versions already delivered. An Updates Subscription, where purchased, is billed on a recurring basis until cancelled and grants access to new versions of your entitled packages published while it is active; it is optional and does not affect the perpetual license for versions already delivered.

Credits

Certain AI-feature and codegen functionality within the Software is metered using a prepaid credit balance (“Credits”). Credits are issued in grants (through a subscription cycle, a one-time top-up purchase, or a promotional grant) and are pooled into a single wallet; unused Credits from a prior grant roll over and are not forfeited at the end of a billing cycle. Each Credit grant expires twelve (12) months after it is issued, unless we state a different expiration for that grant at the time it is issued. Credits are consumed on a first-in, first-out basis, drawing from your oldest outstanding grant first, so that Credits nearing expiration are used before newer Credits; an actively used balance is not lost to expiration through non-use alone. Credits remaining in a grant that expires unused are forfeited without refund; expiration of a Credit grant does not affect your license to the Software or any other right under this Agreement.

Term and termination

This Agreement is effective from the date of your Order and continues until terminated as described below. The license grant for the perpetual license, once fees are paid, survives termination of this Agreement for any reason other than the breach described next.

We may terminate your license to the Software, effective immediately on written notice, if you materially breach the restrictions in this Agreement (including unauthorized redistribution) and fail to cure the breach within 30 days of notice, where curable. On termination for breach, you must stop using and destroy all copies of the Software; Your Products already distributed to your own customers are not affected, but you may not create new copies of, or updates from, the Software.

Sections that by their nature should survive termination (including Vendor continuity and self-maintenance, Disclaimer of warranties, Limitation of liability, Indemnification, Intellectual property, Confidentiality, and Governing law) survive.

Vendor continuity and self-maintenance

A Continuity Event does not terminate, suspend, or diminish your perpetual license. On and after a Continuity Event, the license granted under License grant, above, continues in full force for the Software and any versions already delivered to you, and for the modules and bundles in your Entitlement; the offline verification described under Entitlement and offline verification, above, continues to function without dependence on any Caisson-operated service; and your right to build, operate, and distribute Your Products is unaffected. Caisson will not disable, revoke, or expire a validly issued Entitlement by reason of a Continuity Event.

So that a Continuity Event cannot strand your continued secure operation of the Software, and effective automatically on and for as long as a Continuity Event subsists, Caisson additionally grants you, under the same perpetual, non-exclusive, worldwide terms:

• Self-maintenance. The right to modify, fork, and patch the Software as delivered to you (including for security, compatibility, and continued operation) and to engage third-party contractors, bound by confidentiality obligations at least as protective as this Agreement, to do so on your behalf.
• Internal continuity copies. A waiver of the redistribution restriction under Restrictions, above, solely as to copies of the Software shared within your own organization, your Affiliates, and contractors engaged under the preceding item, and solely for self-maintenance and continued internal use. External redistribution, resale, sublicensing, publication, or provision of the Software to any other third party as a kit remains prohibited without exception.
• Self-hosting of delivery. The right to host, on infrastructure you control, copies of the Software and of any versions already delivered to you that you would otherwise obtain from registry.caisson.sh, so that continued installation and deployment do not depend on any Caisson-operated registry or service.

If a Continuity Event is cured (including by a successor’s assumption), the additional rights above terminate prospectively only: modifications made, copies shared, and hosting established during the Continuity Event remain licensed as exercised.

For the avoidance of doubt, a Continuity Event does not grant, revive, or continue: (a) any right to use the Caisson name, wordmark, glyph, or other marks, which remain governed by Intellectual property, above; (b) any obligation of Caisson to provide future updates, new versions, security patches, support, or services: the rights above are self-help rights, not a continuation of any Caisson service; (c) any updates window or Updates Subscription, neither of which is extended, renewed, or reinstated by a Continuity Event; (d) any warranty: the disclaimers under Disclaimer of warranties and the limitations under Limitation of liability survive a Continuity Event unchanged and apply to any exercise of the rights in this Section; or (e) any right of access to Caisson source, versions, or Confidential Information beyond what was actually delivered to you before the Continuity Event; Caisson has no obligation to escrow or deliver anything further.

Any successor to Caisson (by merger, acquisition, asset sale, bankruptcy transfer, or otherwise) takes the Software subject to this Section. This Section runs with Caisson’s rights in the Software and binds Caisson’s successors and assigns; Caisson shall make any assignment or transfer of its rights in the Software expressly subject to this Section. The parties intend that this Agreement is a license of “intellectual property” as defined in Section 101(35A) of the U.S. Bankruptcy Code, and that you retain the rights of a licensee under Section 365(n), including the right to retain and use the Software as delivered. If a successor assumes this Agreement (including this Section) in writing within the period stated in clause (iv) of the definition of Continuity Event, no Continuity Event occurs by reason of that transaction and this Agreement continues in effect unchanged.

Disclaimer of warranties

Nothing in the Software or this Agreement constitutes compliance, legal, or security advice, and no statement here is a certification of SOC 2, HIPAA, or any other framework. Caisson ships technical controls; whether those controls satisfy a specific regulatory requirement in your jurisdiction is a determination you must make, typically with qualified legal counsel and your own auditor.

Limitation of liability

These limitations apply regardless of the legal theory on which a claim is based, and even if a remedy fails of its essential purpose. Some jurisdictions do not allow the exclusion or limitation of certain damages, so some of the above limitations may not apply to you.

Indemnification

You agree to indemnify, defend, and hold harmless Caisson and its officers, directors, employees, and contractors from any claim, loss, liability, damage, or expense (including reasonable attorneys' fees) arising out of or related to: (a) Your Products; (b) your use of the Software in violation of this Agreement; or (c) your violation of applicable law.

Caisson will provide you with prompt notice of any such claim and reasonable cooperation, at your expense, in its defense. You may not settle any claim in a way that admits fault on behalf of Caisson without our prior written consent.

Intellectual property

Caisson and its licensors retain all right, title, and interest in and to the Software, including all intellectual property rights therein. This Agreement grants you a license to use the Software; it does not transfer ownership. No rights are granted by implication, estoppel, or otherwise beyond those expressly stated in this Agreement.

You retain all right, title, and interest in Your Products and in any modifications you make to the Software for use in Your Products, subject to Caisson's underlying rights in the Software and the restrictions in this Agreement; you may not use those modifications to circumvent the redistribution restriction.

The Caisson name, wordmark, glyph, and associated marks are the property of Caisson Software LLC. This Agreement does not grant you any right to use those trademarks, except to state, accurately, that Your Products are built with Caisson.

Confidentiality

The Software's non-public source code, and any non-public technical or business information Caisson shares with you in connection with an Order (collectively, “Confidential Information”), are confidential. You agree to use Confidential Information only as necessary to exercise your rights under this Agreement, and not to disclose it to third parties except personnel and contractors who need it to work on Your Products and who are bound by confidentiality obligations at least as protective as this Agreement.

Confidential Information does not include information that is or becomes publicly available through no fault of yours, was rightfully known to you before disclosure, or is independently developed without reference to the Confidential Information.

Assignment and transfer

You may not assign or transfer this Agreement or your license without Caisson's prior written consent, except that you may transfer your license, without consent, to an entity that acquires substantially all of your business or the specific product in which the Software is embedded, provided the transferee agrees in writing to be bound by this Agreement. Contact us for transfer terms.

Caisson may assign this Agreement in connection with a merger, acquisition, or sale of substantially all of its assets, on notice to you.

Governing law and disputes

This Agreement is governed by and construed in accordance with the laws of the State of Georgia, United States, without regard to its conflict of law principles.

Any dispute arising under or relating to this Agreement shall be resolved exclusively in the state or federal courts located in Fulton County, Georgia, and you consent to the personal jurisdiction of those courts.

Caisson Software LLC is a limited liability company organized under the laws of the State of Georgia, based in Atlanta, Georgia.

Entire agreement

This Agreement, together with your Order confirmation and any applicable module- or bundle-specific terms referenced in your Entitlement, constitutes the entire agreement between you and Caisson regarding the Software, and supersedes all prior or contemporaneous understandings regarding its subject matter. Where the plain-language summary at /legal/license and this Agreement conflict, this Agreement governs.

If any provision of this Agreement is held unenforceable, the remaining provisions remain in full force. Caisson's failure to enforce a provision is not a waiver of that provision. We may update this Agreement for future Orders; the version delivered with your Order governs that Order.

Licensing and legal questions

For questions about this Agreement, transfer requests, or enterprise terms:

Caisson Software LLC
Atlanta, Georgia, USA
[email protected]