FTTHelper — License & Attribution
Reproduced verbatim from LICENSE.md in the FTTHelper source tree. Back to Licenses and Attribution.
_Last updated: 2026-06-15_ ---
1. Project Source Code
The FTTHelper source code (the Next.js application, seed scripts, components, and build configuration) is **proprietary** and owned by **R21 Digital**. It is not open-source and may not be copied, modified, or redistributed without written permission. If you are a contributor, your contributions are made under the same terms. ---
2. Game Content — Compendium Data
All game-rule content displayed on FTTHelper (items, monsters, spells, and rules text) comes from the sources listed below. **FTTHelper does not reproduce copyrighted setting lore, narrative text, or artwork owned by any publisher** — only mechanics and statistical data released under open gaming licenses. Every compendium entry on the site links its specific source document and license on its detail page. This file lists the known sources aggregated via the [Open5e API](https://open5e.com), which is the sole data pipeline for game content.
2.1 Wizards of the Coast — System Reference Document (SRD)
| Document | License | Scope | |---|---|---| | System Reference Document 5.1 | CC-BY-4.0 + OGL-1.0a | Core rules, races, classes, monsters, spells, items, feats | | System Reference Document 5.2 | CC-BY-4.0 | Updated 2024 core rules | | 5e Core Rules (pre-SRD open content) | OGL-1.0a | Subset of SRD distributed under the original OGL | **Attribution text (CC BY 4.0):** > Some content available on FTTHelper is derived from the Dungeons & Dragons > System Reference Document 5.1 and 5.2, made available by Wizards of the Coast > LLC under the Creative Commons Attribution 4.0 International License. > To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/. **Note on Product Identity:** The following are registered trademarks or Product Identity of Wizards of the Coast and do **not** appear in the curated compendium: Beholder, Mind Flayer (and Illithid), Displacer Beast, Githyanki, Githzerai, Carrion Crawler, Gauth, Kuo-toa, Slaad, and Umber Hulk. Named characters from published settings (e.g., Drizzt Do'Urden, Mordenkainen, Tasha) are also excluded.
2.2 Kobold Press
| Document | License | Notes | |---|---|---| | Tome of Beasts | OGL-1.0a | Monsters | | Tome of Beasts 2 | OGL-1.0a | Monsters | | Tome of Beasts 3 | OGL-1.0a | Monsters | | Tome of Beasts 2023 | OGL-1.0a | Monsters | | Creature Codex | OGL-1.0a | Monsters | | Tome of Heroes | OGL-1.0a | Items, spells | | Deep Magic 5e | OGL-1.0a | Spells | | Deep Magic Extended | OGL-1.0a | Spells | | Warlock Archives | OGL-1.0a | Spells | | Kobold Press Compilation | OGL-1.0a | Spells | | Black Flag SRD | ORC + OGL-1.0a | Monsters (dual-licensed under the Open RPG Creative License) | **Required attribution (OGL 1.0a):** > This work includes material taken from the Kobold Press system reference documents > and published compendiums. The Tome of Beasts, Creature Codex, Tome of Heroes, > Deep Magic, and Black Flag SRD are © Open Design LLC / Kobold Press. All rights > reserved, published under the Open Game License 1.0a.
2.3 EN Publishing — Level Up Advanced 5e (A5e)
| Document | License | Notes | |---|---|---| | Level Up Advanced 5e Core | OGL-1.0a | Items, spells | | Level Up Advanced 5e Monstrous Menagerie | OGL-1.0a | Monsters | **Required attribution (OGL 1.0a):** > This work includes material taken from the Level Up Advanced 5e system reference > documents, © EN Publishing. Published under the Open Game License 1.0a.
2.4 Mage Hand Press — Vault of Magic
| Document | License | Notes | |---|---|---| | Vault of Magic | OGL-1.0a | Magic items |
2.5 Darrington Press / Green Ronin — Tal'Dorei Campaign Setting
| Document | License | Notes | |---|---|---| | Critical Role: Tal'Dorei Campaign Setting Reborn | OGL-1.0a | Monsters, magic items | **Notice:** FTTHelper includes open-game content from the Tal'Dorei Campaign Setting Reborn, © Green Ronin Publishing LLC / Darrington Press. Content that is Product Identity of those publishers is not reproduced.
2.6 Open5e
| Document | License | Notes | |---|---|---| | Open5e API / Original Content | OGL-1.0a | Aggregation layer and original entries | Open5e is the content aggregation API used to seed and update the compendium. Their service aggregates the above sources under their respective OGL-1.0a and CC-BY-4.0 licenses. See https://open5e.com for details. ---
3. Icons
Site icons (category tags, UI, and decorative elements) are sourced from: - **game-icons.net** — CC BY 3.0 > Icons by game-icons.net under the Creative Commons Attribution 3.0 License. > https://creativecommons.org/licenses/by/3.0/ ---
4. AI-Generated Artwork
4.1 NPC Codex Portraits
NPC portrait images in the NPC Codex are generated via **fal.ai** using premium image models, created under the internal curator account "The Loremaster" (loremaster@ftthelper.app). These images are original works generated for FTTHelper and are owned by R21 Digital.
4.2 DiegoV Gallery / Demo Content
Sample art by the demo creator "DiegoV" (diegov@ftthelper.app) is generated via **Cloudflare Workers AI** using open models (FLUX.1-Schnell, Stable Diffusion XL). These are original generations created for demonstration purposes.
4.3 User-Generated Art
Artwork created by FTTHelper users through the Image Generation tool belongs to the creating user. FTTHelper claims no ownership over user-generated images. ---
5. License Texts
5.1 Creative Commons Attribution 4.0 International (CC-BY-4.0)
This is a human-readable summary of (and not a substitute for) the full license. Full text: https://creativecommons.org/licenses/by/4.0/legalcode **You are free to:** - **Share** — copy and redistribute the material in any medium or format - **Adapt** — remix, transform, and build upon the material for any purpose, even commercially **Under the following terms:** - **Attribution** — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
5.2 Open Game License Version 1.0a (OGL-1.0a)
The following is the legal text of the Open Game License 1.0a. This license applies
to all content designated as Open Game Content by the publishers listed in Section 2.
> **OPEN GAME LICENSE Version 1.0a**
>
> The following text is the property of Wizards of the Coast, Inc. and is Copyright
> 2000 Wizards of the Coast, Inc ("Wizards"). All Rights Reserved.
>
> 1. Definitions: (a)"Contributors" means the copyright and/or trademark owners who
> have contributed Open Game Content; (b)"Derivative Material" means copyrighted
> material including derivative works and translations (including into other
> computer languages), potation, modification, correction, addition, extension,
> upgrade, improvement, compilation, abridgment or other form in which an existing
> work may be recast, transformed or adapted; (c) "Distribute" means to reproduce,
> license, rent, lease, sell, broadcast, publicly display, transmit or otherwise
> distribute; (d)"Open Game Content" means the game mechanic and includes the
> methods, procedures, processes and routines to the extent such content does not
> embody the Product Identity and is an enhancement over the prior art and any
> additional content clearly identified as Open Game Content by the Contributor,
> and means any work covered by this License, including translations and derivative
> works under copyright law, but specifically excludes Product Identity.
> (e) "Product Identity" means product and product line names, logos and identifying
> marks including trade dress; artifacts; creatures characters; stories, storylines,
> plots, thematic elements, dialogue, incidents, language, artwork, symbols, designs,
> depictions, likenesses, formats, poses, concepts, themes and graphic, photographic
> and other visual or audio representations; names and descriptions of characters,
> spells, enchantments, personalities, teams, personas, likenesses and special
> abilities; places, locations, environments, creatures, equipment, magical or
> supernatural abilities or effects, logos, symbols, or graphic designs; and any
> other trademark or registered trademark clearly identified as Product Identity
> by the owner of the Product Identity, and which specifically excludes the Open
> Game Content; (f) "Trademark" means the logos, names, mark, sign, motto, designs
> that are used by a Contributor to identify itself or its products or the associated
> products contributed to the Open Game License by the Contributor (g) "Use",
> "Used" or "Using" means to use, Distribute, copy, edit, format, modify, translate
> and otherwise create Derivative Material of Open Game Content. (h) "You" or "Your"
> means the licensee in terms of this agreement.
>
> 2. The License: This License applies to any Open Game Content that contains a notice
> indicating that the Open Game Content may only be Used under and in terms of this
> License. You must affix such a notice to any Open Game Content that you Use. No
> terms may be added to or subtracted from this License except as described by the
> License itself. No other terms or conditions may be applied to any Open Game
> Content distributed using this License.
>
> 3. Offer and Acceptance: By Using the Open Game Content You indicate Your acceptance
> of the terms of this License.
>
> 4. Grant and Consideration: In consideration for agreeing to use this License, the
> Contributors grant You a perpetual, worldwide, royalty-free, non-exclusive license
> with the exact terms of this License to Use, the Open Game Content.
>
> 5. Representation of Authority to Contribute: If You are contributing original
> material as Open Game Content, You represent that Your Contributions are Your
> original creation and/or You have sufficient rights to grant the rights conveyed
> by this License.
>
> 6. Notice of License Copyright: You MUST update the COPYRIGHT NOTICE portion of
> this License to include the exact text of the COPYRIGHT NOTICE of any Open Game
> Content You are copying, modifying or distributing, and You must add the title,
> the copyright date, and the copyright holder's name to the COPYRIGHT NOTICE of
> any original Open Game Content you Distribute.
>
> 7. Use of Product Identity: You agree not to Use any Product Identity, including
> as an indication as to compatibility, except as expressly licensed in another,
> independent Agreement with the owner of each element of that Product Identity.
> You agree not to indicate compatibility or co-adaptability with any Trademark or
> Registered Trademark in conjunction with a work containing Open Game Content
> except as expressly licensed in another, independent Agreement with the owner of
> such Trademark or Registered Trademark. The use of any Product Identity in Open
> Game Content does not constitute a challenge to the ownership of that Product
> Identity. The owner of any Product Identity used in Open Game Content shall retain
> all rights, title and interest in and to that Product Identity.
>
> 8. Identification: If you distribute Open Game Content You must clearly indicate
> which portions of the work that you are distributing are Open Game Content.
>
> 9. Updating the License: Wizards or its designated Agents may publish updated
> versions of this License. You may use any authorized version of this License to
> copy, modify and distribute any Open Game Content originally distributed under any
> version of this License.
>
> 10. Copy of this License: You MUST include a copy of this License with every copy
> of the Open Game Content You Distribute.
>
> 11. Use of Contributor Credits: You may not market or advertise the Open Game
> Content using the name of any Contributor unless You have written permission
> from the Contributor to do so.
>
> 12. Inability to Comply: If it is impossible for You to comply with any of the
> terms of this License with respect to some or all of the Open Game Content due
> to statute, judicial order, or governmental regulation then You may not Use any
> Open Game Material so affected.
>
> 13. Termination: This License will terminate automatically if You fail to comply
> with all terms herein and fail to cure such breach within 30 days of becoming
> aware of the breach. All sublicenses shall survive the termination of this
> License.
>
> 14. Reformation: If any provision of this License is held to be unenforceable,
> such provision shall be reformed only to the extent necessary to make it
> enforceable.
>
> 15. COPYRIGHT NOTICE
>
> **Open Game License v 1.0a**, Copyright 2000, Wizards of the Coast, Inc.
>
> **System Reference Document 5.1**, Copyright 2016, Wizards of the Coast, Inc.;
> Authors Mike Mearls, Jeremy Crawford, Chris Perkins, Rodney Thompson, Peter Lee,
> James Wyatt, Robert J. Schwalb, Bruce R. Cordell, Chris Sims, and Steve Townshend,
> based on original material by E. Gary Gygax and Dave Arneson.
>
> **Tome of Beasts**, Copyright 2016, Open Design LLC; Authors Chris Harris, Dan
> Dillon, Richard Green, and James Haeck.
>
> **Tome of Beasts 2**, Copyright 2020, Open Design LLC; Authors Wolfgang Baur,
> Celeste Conowitch, Dan Dillon, James Introcaso, Chris Harris, and Jeff Lee.
>
> **Tome of Beasts 3**, Copyright 2022, Open Design LLC; Authors various.
>
> **Creature Codex**, Copyright 2018, Open Design LLC; Authors Wolfgang Baur,
> Dan Dillon, Richard Green, Mike Welham, and others.
>
> **Level Up Advanced 5e Monstrous Menagerie**, Copyright 2021, EN Publishing;
> Authors Paul Hughes, Chris Pramas, and others.
>
> **Level Up Advanced 5e Core Rulebook**, Copyright 2021, EN Publishing.
>
> **Tome of Heroes**, Copyright 2021, Open Design LLC; Authors various.
>
> **Deep Magic 5e**, Copyright 2020, Open Design LLC; Authors various.
>
> **Vault of Magic**, Copyright 2020, Mage Hand Press; Authors various.
>
> **Critical Role: Tal'Dorei Campaign Setting Reborn**, Copyright 2022, Green Ronin
> Publishing LLC / Darrington Press; Authors Matthew Mercer, James Haeck, and others.
>
> **Black Flag Role-Playing Game SRD**, Copyright 2024, Open Design LLC / Kobold
> Press; Authors various. Licensed under the ORC License and OGL-1.0a.
>
> **Open5e**, Copyright 2017–2024, the Open5e Contributors.
>
> **FTTHelper Compendium**, Copyright 2026, R21 Digital.
---6. Questions & Corrections
If you believe an attribution is missing or incorrect, please open an issue on the FTTHelper GitHub repository or contact us at support@ftthelper.app. --- **FTTHelper** is an independent fan tool. It is not affiliated with, endorsed by, or sponsored by Wizards of the Coast LLC, Kobold Press, EN Publishing, Mage Hand Press, or Darrington Press. Dungeons & Dragons and related marks are trademarks of Wizards of the Coast.