3D models for apps and AI agents
Marketplaces, libraries and datasets of 3D models. 19 sources compared on price, license terms and how an agent connects. Read on official pages, checked Oct 10, 2026.
Tick the sources you want to use, then Copy for your agent to paste their license rules and API details into your prompt.
| Pick for your agent | Source | Price | License | Agent access |
|---|---|---|---|---|
| blender-mcp Community MCP server and Blender add-on that lets agents drive Blender and pull Poly Haven, Sketchfab, Poly Pizza assets. |
Free | Commercial OK Credit varies | Community MCP | |
| CGTrader 3D model marketplace with an OAuth2 API for search, purchase and bulk download (by application). |
Free tier · from $9.99/mo | Commercial: conditions No bots | API | |
| Icosa Gallery Open-source community 3D gallery with a public REST API and per-asset Creative Commons licenses. |
Free | Commercial: conditions Credit varies | API | |
| Poly Haven CC0 HDRIs, textures and 3D models with a free, keyless public API. |
Free | Commercial OK Credit (API) No bots | API MCP (community) | |
| Poly Pizza 10,700+ free 3D models under per-model Creative Commons licenses, with an API. |
Free | Commercial: conditions Credit varies No AI training No bots | API MCP (community) | |
| Sketchfab 3D model platform with 1M+ free CC models, a Data API and a Download API (glTF/GLB/USDZ). |
Free tier | Commercial: conditions Credit varies | API MCP (community) | |
| Smithsonian Open Access CC0 Smithsonian collection records and 3D models, with a REST API (api.data.gov key) and an alpha 3D API. |
Free | Commercial: conditions No credit | API | |
| Blendkit Blender add-on library of models, materials and HDRIs under Royalty Free or CC0 (formerly BlenderKit). |
Free tier · from $8.9/mo | Commercial: conditions No credit | Download | |
| Fab Epic marketplace merging Unreal Marketplace, Sketchfab Store, Quixel and ArtStation; no public web API. |
Free tier | Commercial: conditions Credit varies | Download | |
| Kenney CC0 game asset packs (2D, 3D, UI, textures, audio), free per pack, plus a paid all-in-one bundle. |
Free tier | Commercial OK No credit | Download | |
| NASA 3D Resources Free NASA 3D models, with a GitHub mirror (nasa/NASA-3D-Resources); no API. |
Free | Commercial: conditions Credit required | Download | |
| Objaverse / Objaverse-XL Open 3D dataset (800K+ objects; XL 10M+) on Hugging Face with per-object licenses. |
Free | Commercial: conditions Credit varies | Download | |
| Poliigon Textures, models and HDRIs with free and commercial licenses; strict rules for games. |
Free tier | Commercial: conditions No AI training No bots | Download | |
| Quaternius Free 3D asset packs under the Quaternius Asset License, usable in commercial games. |
Free | Commercial OK No credit | Download | |
| TurboSquid Shutterstock's 3D model marketplace under a Royalty Free License; its API is for publishing only. |
Free tier | Commercial: conditions No credit No AI training | Download | |
| Unity Asset Store Unity's marketplace of free and paid assets, accessed in the Unity Editor; no public API found. |
Free tier | Commercial: conditions No AI training No bots | Download | |
| Thingiverse 3D printing model repository with a REST API and per-thing licenses, often CC BY-NC. |
Free | Commercial: unclear Credit varies | API | |
| Printables Prusa's 3D printing model site with per-model free licenses and paid store models; no public API found. |
Free tier | Commercial: unclear Credit varies | Download | |
| Google Poly Closed Former Google 3D model library and Poly API; closed in 2021. |
Paid · on request | Commercial: unclear | Download |
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Not legal advice. Each source's page links the license we read; check it before you ship.