This MCP server provides search and download access to free CC0 GLB models and game packs, and supports submitting new ones on a user’s behalf. The repository organizes machine-readable components for directories and agent tooling that index https://3dassets.dev, aligning with tooling for multiple glTF-capable environments.

🛠️ Key Features

Search and download free CC0 GLB models and game asset packs
Submit new assets on a user’s behalf
Designed to support glTF-capable tools via GLB assets
Includes machine-readable MCP-related files for indexing and tooling

🚀 Use Cases

Agent tooling that indexes the contents of https://3dassets.dev
Asset pipelines targeting three.js, React Three Fiber, Blender, Godot, Unity
Directory-based discovery for CC0 GLB and game packs

⚡ Developer Benefits

SKILL.md mirrors https://3dassets.dev/skill.md (kept in sync daily)
bin/3dassets-mcp.js exposes a 3dassets-mcp npm package as a stdio bridge
.mcp.json provides MCP client configuration for the hosted server
server.json contains the official MCP definition

⚠️ Limitations

Scope is limited to CC0 GLB models and game packs, as described in the available documentation

3DAssets.dev for agents

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.

MCP server

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

json

{
  "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.

Hosted endpoint

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:

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.

Skill

npx skills add 3dassets-dev/3dassets

Or point any agent at https://3dassets.dev/skill.md directly. The skill uses plain HTTP, so it works without MCP.

REST API

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.

Discovery documents

Licence

Every asset on the site is CC0 1.0. The files in this repository are CC0 1.0 too.

Questions: hello@3dassets.dev

query	string	optional	Free-text search over pack titles and summaries
q	string	optional	Alias for query, as spelled by the REST API
theme	string	optional	Theme tag slug, e.g. sci-fi, fantasy, modern
style	string	optional	Style tag slug, e.g. low-poly, realistic, voxel

query	string	optional	Free-text search over title and summary
q	string	optional	Alias for query, as spelled by the REST API
category	string	optional	Category slug from list_categories
tag	string	optional	Any tag slug from list_tags
theme	string	optional	Theme tag slug, e.g. sci-fi, fantasy, modern
style	string	optional	Style tag slug, e.g. low-poly, realistic, voxel
sort	string	optional	Default: best match for a query, newest otherwise
limit	integer	optional
page	integer	optional

slug	string	required
framework	string	optional

email	string	required
username	string	required	Public handle, lowercase letters/numbers/hyphens
name	string	optional	Optional display name shown on assets; defaults to the username
website	string	optional

email	string	required
code	string	required

3DAssets.dev

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

Topics

search_packs

get_pack

list_demos

get_demo

search_assets

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

submit_pack

my_packs

update_asset

3DAssets.dev for agents

MCP server

Hosted endpoint

Skill

REST API

Discovery documents

Licence

Install

Configuration

Related servers

url	string	required
title	string	required
summary	string	required	Plain 1–2 sentence description
description	string	optional	Markdown: scale, pivot, what is included
category	string	required	From list_categories
license	string	optional	Fixed CC0 1.0 Universal dedication; no licence selection
tags	array	optional
sourceUrl	string	optional	Where the original was first published
aiGenerated	boolean	optional	AI helped create geometry, code or textures; not merely uploading
aiModel	string	optional	Contributor-reported model ID or custom model/tool name; use list_ai_models for suggestions. Omit if unknown.
attestation	boolean	required	Required contributor acceptance (including for agent submissions): I confirm that I created this asset or hold the rights to publish it under CC0 1.0 Universal, and agree to dedicate it to the public domain under CC0 so anyone can use, modify and redistribute it for personal or commercial purposes without attribution. I understand this dedication is irrevocable and the asset will be reviewed before publishing.

filename	string	required
contentLength	integer	required
withPreview	boolean	optional

quarantineKey	string	required
previewKey	string	optional
title	string	required
summary	string	required	Plain 1–2 sentence description
description	string	optional	Markdown: scale, pivot, what is included
category	string	required	From list_categories
license	string	optional	Fixed CC0 1.0 Universal dedication; no licence selection
tags	array	optional
sourceUrl	string	optional	Where the original was first published
aiGenerated	boolean	optional	AI helped create geometry, code or textures; not merely uploading
aiModel	string	optional	Contributor-reported model ID or custom model/tool name; use list_ai_models for suggestions. Omit if unknown.
attestation	boolean	required	Required contributor acceptance (including for agent submissions): I confirm that I created this asset or hold the rights to publish it under CC0 1.0 Universal, and agree to dedicate it to the public domain under CC0 so anyone can use, modify and redistribute it for personal or commercial purposes without attribution. I understand this dedication is irrevocable and the asset will be reviewed before publishing.