Allows searching and downloading CC0 3D models and asset packs for use in Blender.
Allows searching and downloading CC0 3D models in glTF format for glTF-capable tools.
Allows searching and downloading CC0 3D models and asset packs for use with Three.js.
Allows searching and downloading CC0 3D models and asset packs for use with Unity.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@3dassets search for low-poly tree GLB models I can use commercially"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Free, web-optimised CC0 GLB models and game asset packs for three.js, React Three Fiber, Blender, Godot, Unity and any glTF-capable tool. This repository holds the machine-readable pieces of https://3dassets.dev in one place for directories and agent tooling that index GitHub:
SKILL.md: the agent skill, a copy of https://3dassets.dev/skill.md (kept in sync daily by a workflow)
bin/3dassets-mcp.js: the 3dassets-mcp npm package, a stdio bridge to the hosted server
.mcp.json: MCP client configuration for the hosted server
server.json: the official MCP Registry entry
llms-install.md: setup notes for agents that install from a README
The site, the API and the MCP server itself are hosted at 3dassets.dev, so the only code here is the thin stdio bridge; the catalogue is at https://3dassets.dev/assets.
Two ways in. Hosted (Streamable HTTP) needs nothing installed; the npm package runs the same server over stdio for clients that only speak stdio or want a pinned dependency. Both expose the same tools.
# stdio, via npm (bridges to the hosted server; no local state)
npx -y 3dassets-mcp{
"mcpServers": {
"3dassets": { "command": "npx", "args": ["-y", "3dassets-mcp"] }
}
}Set THREEDASSETS_API_KEY in the environment to submit models on the user's behalf; leave it unset for read-only use.
Streamable HTTP endpoint: https://3dassets.dev/mcp. Search and download need no auth. Submitting models on a user's behalf takes their API key as a Bearer token; https://3dassets.dev/auth.md explains how an agent obtains one without the user ever handling a password.
# Claude Code
claude mcp add --transport http 3dassets https://3dassets.dev/mcp
# Codex CLI
codex mcp add 3dassets --url https://3dassets.dev/mcp
# VS Code
code --add-mcp '{"name":"3dassets","type":"http","url":"https://3dassets.dev/mcp"}'Cursor, Windsurf or any mcp.json:
{
"mcpServers": {
"3dassets": { "url": "https://3dassets.dev/mcp" }
}
}Tools: search_assets, search_packs, get_pack, list_demos, get_demo, get_asset, get_asset_usage, list_categories, list_tags, list_licenses, list_ai_models, create_account, verify_account, submit_asset_from_url, get_upload_url, finalize_upload, my_assets, update_asset, submit_pack, my_packs. Full reference: https://3dassets.dev/docs/mcp.
Related MCP server: sketchfab-mcp-server
npx skills add 3dassets-dev/3dassetsOr point any agent at https://3dassets.dev/skill.md directly. The skill uses plain HTTP, so it works without MCP.
Base https://3dassets.dev/api/v1, OpenAPI at https://3dassets.dev/api/v1/openapi.json, guide at https://3dassets.dev/docs/api. Every asset also has a Markdown view at https://3dassets.dev/assets/{slug}.md.
Every asset on the site is CC0 1.0. The files in this repository are CC0 1.0 too.
Questions: hello@3dassets.dev
Create a contributor account for the user. Needs only a username and email. There is no password anywhere in this product, so never ask the user for one. A 6-digit code is emailed to them; ask the user to read it to you, then call verify_account to receive their API key. Only do this with the user’s explicit consent.
Inputs: email (required), username (required), name, website.
After PUTting the file to the URL from get_upload_url, describe the asset and submit it for processing and review.
Inputs: title (required), summary (required), category (required), attestation (required), +8 more.
Full details for one asset by slug: CDN URL, licence + attribution text, stats, bounding box, animations, and ready-to-paste loader snippets.
Inputs: slug (required).
Code or steps to load an asset in three.js, React Three Fiber, , Blender, Godot or Unity.
Inputs: slug (required), framework.
Get one demo: the pack, the spawn point, the walkable bounds, the points of interest, and every placement (public asset slug, position in metres, yaw in degrees) with the CDN URL and bounds of each model placed. Load the models with a plain GLTFLoader and apply the transforms to reproduce the scene.
Inputs: slug (required).
Get a free pack manifest with direct CDN URLs, licences, geometry budgets, loader snippets and its assembled starter scene. Download models individually or use the starter scene.
Inputs: slug (required).
For clients that can upload bytes: returns a presigned PUT URL for a .glb (and optionally a PNG preview). Then call finalize_upload with the returned keys.
Inputs: filename (required), contentLength (required), withPreview.
Search model suggestions from OpenRouter, refreshed hourly. Custom model/tool names are accepted; the list is not exhaustive. Unavailable suggestions never block uploads.
Inputs: q.
List categories available on 3dassets.dev (slugs are what other tools accept).
Inputs: no named parameters.
List the walkable demo scenes staff have built from single packs. Each is a small environment a person can walk through on the site and an agent can load as a layout. Use get_demo for the placements.
Inputs: no named parameters.
Returns the sole accepted submission dedication: CC0 1.0 Universal. No licence selection is needed.
Inputs: no named parameters.
List tags available on 3dassets.dev (slugs are what other tools accept).
Inputs: no named parameters.
List the user’s submissions with status (processing, pending review, published, rejected + reason, failed + reason). pendingEdit means the user has metadata changes waiting for review; the published version is unchanged until they are approved.
Inputs: no named parameters.
List the user’s pack proposals with status (submitted, approved + pack URL, rejected + reason) and the status of each member model.
Inputs: no named parameters.
Search the free GLB catalogue on 3dassets.dev (three.js, Blender, Godot, Unity) by text, category (what it is), theme (what world) and style (what look). Returns direct CDN URLs (CORS *, immutable) that load with a plain GLTFLoader. Published models use CC0 1.0 Universal: free personal and commercial use without attribution. Licence metadata is retained in each result.
Inputs: q, tag, page, sort, +5 more.
Find cohesive free GLB game kits by text, theme or style. Returns file counts, total bytes and starter scene URLs. Use get_pack for every individual model and loader snippet.
Inputs: q, query, style, theme.
Submit a .glb hosted at a public https URL on the user’s behalf (requires their API key). We download it, validate and re-encode it, then a human reviews it before publishing. CC0 is automatic, but the user must accept its irrevocable dedication before submission. Max 25 MB, 1M triangles, embedded textures only.
Inputs: url (required), title (required), summary (required), category (required), +7 more.
Group 2–50 of the user’s own uploads (any that are processing, pending or published) into a pack proposal. Upload the models first with finalize_upload or submit_asset_from_url, then pass their slugs here. Each model is still reviewed on its own; a person approves the pack as a whole, which publishes any members still pending and creates the pack page. Nothing goes live until then. The user is emailed the outcome.
Inputs: title (required), assets (required), summary (required), description.
Edit the metadata of one of the user’s own assets. The uploaded GLB can never be changed. Editing an asset that is already published does not change it: the proposal goes to the review queue and the live version keeps serving until a person approves it.
Inputs: slug (required), tags, title, aiModel, +4 more.
Exchange the emailed 6-digit code for the account’s API key. Show the key to the user and tell them to configure it as the Bearer token for this MCP server.
Inputs: code (required), email (required).
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
v1.0.0create_accountfinalize_uploadget_assetget_asset_usageget_demoget_packget_upload_urllist_ai_modelslist_categorieslist_demoslist_licenseslist_tagsmy_assetsmy_packssearch_assetssearch_packssubmit_asset_from_urlsubmit_packupdate_assetverify_accountScored across 20 tools
Each tool has a clearly distinct purpose: account management, asset upload steps, asset and pack queries, metadata lists, and usage examples. The stepwise upload flow (get_upload_url, submit_asset_from_url, finalize_upload) is well-separated, and user-specific vs. general queries are unambiguous.
Most tools follow a verb-first pattern (get_, list_, search_, submit_, create_, verify_, finalize_), but 'my_assets' and 'my_packs' break this convention by using a noun phrase. This inconsistency is noticeable but not chaotic, as the verbs are otherwise regular.
With 20 tools, the server is slightly above the typical 3-15 range, but the breadth is justified by covering accounts, assets, packs, demos, metadata, and usage. It feels comprehensive rather than bloated, and each tool serves a distinct function.
The surface covers the full asset lifecycle: account creation/verification, both upload methods, asset retrieval/search/update, pack creation/search, demo listing, and supporting metadata (categories, tags, licenses, AI models). No obvious missing operations like delete are required given the immutable design (assets cannot be changed after upload).
Search a large 3D model library and download converted GLB/FBX/USDZ assets via signed URLs.
Free CC0 3D models, PBR textures and HDRIs searched by meaning and size; 3D generation for credits.
Free CC0 low-poly 3D models (GLB): rigged, animated animals, dinos, insects, people. No key.
Free text/image → 3D: generate, rig, avatar-ify, and refine GLB models. No auth, no payment.