3DAssets.dev

dev.3dassetsPublished by 3dassets.devOfficial publisherv1.0.1Updated Oct 25, 2026

Search and download free CC0 GLB models and game packs, and submit new ones on a user behalf.

VerifiedStreamable HTTPWeb executableFiles & StorageDeveloper ToolsMedia & Design

Overview

AI-generated overview

Search and download free CC0 GLB 3D models and game packs, get loader snippets and demo layouts, and submit new models on a user's behalf.

What you can do
Search free GLB assets and packs by text, category, theme or style, and list categories, tags and licences to narrow results. Retrieve full asset or pack details: CDN URLs, licence and attribution text, stats, bounding boxes, animations and loader snippets. Get ready-to-paste loading code for three.js, React Three Fiber, model-viewer, Blender, Godot or Unity. Browse walkable demo scenes with spawn points, bounds and per-model placements to reproduce a layout. Create a contributor account, verify it by emailed code, and submit models or pack proposals, then track their review status and edit metadata.
When to use it
Useful when building 3D scenes or games and you want an assistant to find free CC0 models, fetch their URLs and licence details, and produce working loader code. Also for contributors who want to submit or manage their own uploads through the assistant.
Requirements
Either the hosted Streamable HTTP endpoint or the npm package 3dassets-mcp run with npx, which bridges to the hosted server. Search and download need no account. Submitting models needs an API key from the account page, set as THREEDASSETS_API_KEY or sent as an Authorization Bearer token. Network access to 3dassets.dev and its CDN.
Before you install
Submitting requires the user's API key and an irrevocable CC0 public-domain dedication of the uploaded model, which is then human-reviewed before publishing. Account creation emails a 6-digit code that the assistant is asked to collect from the user; only do this with the user's consent. Uploads and metadata edits change data on a third-party service, and published assets stay live until edits are approved.

Installation

In SourceWeft

  1. Open 3DAssets.dev in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/dev.3dassets%2Fcatalogue/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "3dassets-dev": {
      "type": "http",
      "url": "https://3dassets.dev/mcp"
    }
  }
}

README

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.

sh
# 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.

sh
# Claude Codeclaude mcp add --transport http 3dassets https://3dassets.dev/mcp
# Codex CLIcodex mcp add 3dassets --url https://3dassets.dev/mcp
# VS Codecode --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

sh
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: [email protected]

Source: README.md at commit 2839639

Tools

20

search_packs

Search game asset packs

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.

Parametersqquerystyletheme

get_pack

Get a complete game asset pack

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.

Parametersslugrequired

list_demos

List walkable pack demos

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.

Takes no parameters.

get_demo

Get a walkable pack demo layout

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.

Parametersslugrequired

search_assets

Search assets

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.

Parametersqtagpagesortlimitquerystylethemecategory

get_asset

Get asset

Full details for one asset by slug: CDN URL, licence + attribution text, stats, bounding box, animations, and ready-to-paste loader snippets.

Parametersslugrequired

get_asset_usage

Get usage snippet

Code or steps to load an asset in three.js, React Three Fiber, <model-viewer>, Blender, Godot or Unity.

Parametersslugrequiredframework

list_categories

List categories

List categories available on 3dassets.dev (slugs are what other tools accept).

Takes no parameters.

list_tags

List tags

List tags available on 3dassets.dev (slugs are what other tools accept).

Takes no parameters.

list_licenses

List licences

Returns the sole accepted submission dedication: CC0 1.0 Universal. No licence selection is needed.

Takes no parameters.

list_ai_models

Find AI models

Search model suggestions from OpenRouter, refreshed hourly. Custom model/tool names are accepted; the list is not exhaustive. Unavailable suggestions never block uploads.

Parametersq

create_account

Create account

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.

Parametersnameemailrequiredwebsiteusernamerequired

verify_account

Verify account

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.

Parameterscoderequiredemailrequired

submit_asset_from_url

Submit asset from URL

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.

ParametersurlrequiredtagstitlerequiredaiModellicensesummaryrequiredcategoryrequiredsourceUrlaiGeneratedattestationrequireddescription

get_upload_url

Get upload URL

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.

ParametersfilenamerequiredwithPreviewcontentLengthrequired

finalize_upload

Finalize upload

After PUTting the file to the URL from get_upload_url, describe the asset and submit it for processing and review.

ParameterstagstitlerequiredaiModellicensesummaryrequiredcategoryrequiredsourceUrlpreviewKeyaiGeneratedattestationrequireddescriptionquarantineKeyrequired

my_assets

My assets

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.

Takes no parameters.

submit_pack

Propose a pack

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.

Parameterstitlerequiredassetsrequiredsummaryrequireddescription

my_packs

My packs

List the user’s pack proposals with status (submitted, approved + pack URL, rejected + reason) and the status of each member model.

Takes no parameters.

update_asset

Update asset

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.

ParametersslugrequiredtagstitleaiModelsummarycategoryaiGenerateddescription

Version history

1
  1. v1.0.1LatestSep 16, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.