MCP Radar
MCP Server

3DAssets.dev

dev.3dassets/catalogue
Design & Creative Developer Tools Gaming Public & reachable MCP 2025-11-25

What this MCP does

Searches and delivers free CC0 GLB models and game asset packs, with licensing details, CDN links, scene layouts, and loader usage snippets.

Capabilities

Tools

20 tools
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['email', 'username'], 'properties': {'name': {'type': 'string', 'maxLength': 80, 'minLength': 2, 'description': 'Optional display name shown on assets; defaults to the username'}, 'email': {'type': 'string', 'format': 'email', 'pattern': "^(?!\\.)(?!.*\\.\\.)([A-Za-z0-9_'+\\-\\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"}, 'website': {'type': 'string', 'format': 'uri'}, 'username': {'type': 'string', 'pattern': '^[a-z0-9](?:[a-z0-9-]{1,30}[a-z0-9])?$', 'description': 'Public handle, lowercase letters/numbers/hyphens'}}}
finalize_upload
Finalize upload
After PUTting the file to the URL from get_upload_url, describe the asset and submit it for processing and review.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['quarantineKey', 'title', 'summary', 'category', 'attestation'], 'properties': {'tags': {'type': 'array', 'items': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}, 'default': [], 'maxItems': 12}, 'title': {'type': 'string', 'maxLength': 120, 'minLength': 2}, 'aiModel': {'type': 'string', 'maxLength': 160, 'minLength': 1, 'description': 'Contributor-reported model ID or custom model/tool name; use list_ai_models for suggestions. Omit if unknown.'}, 'license': {'type': 'string', 'const': 'cc0-1.0', 'default': 'cc0-1.0', 'description': 'Fixed CC0 1.0 Universal dedication; no licence selection'}, 'summary': {'type': 'string', 'maxLength': 280, 'minLength': 10, 'description': 'Plain 1â\x80\x932 sentence description'}, 'category': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1, 'description': 'From list_categories'}, 'sourceUrl': {'type': 'string', 'format': 'uri', 'description': 'Where the original was first published'}, 'previewKey': {'type': 'string'}, 'aiGenerated': {'type': 'boolean', 'default': False, 'description': 'AI helped create geometry, code or textures; not merely uploading'}, 'attestation': {'type': 'boolean', 'const': True, 'description': '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.'}, 'description': {'type': 'string', 'maxLength': 5000, 'description': 'Markdown: scale, pivot, what is included'}, 'quarantineKey': {'type': 'string'}}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['slug'], 'properties': {'slug': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['slug'], 'properties': {'slug': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}, 'framework': {'enum': ['threejs', 'r3f', 'model-viewer', 'blender', 'godot', 'unity'], 'type': 'string', 'default': 'threejs'}}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['slug'], 'properties': {'slug': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['slug'], 'properties': {'slug': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['filename', 'contentLength'], 'properties': {'filename': {'type': 'string', 'maxLength': 200, 'minLength': 1}, 'withPreview': {'type': 'boolean', 'default': True}, 'contentLength': {'type': 'integer', 'maximum': 26214400, 'exclusiveMinimum': 0}}}
list_ai_models
Find AI models
Search model suggestions from OpenRouter, refreshed hourly. Custom model/tool names are accepted; the list is not exhaustive. Unavailable suggestions never block uploads.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {'q': {'type': 'string', 'maxLength': 200}}}
list_categories
List categories
List categories available on 3dassets.dev (slugs are what other tools accept).
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {}}
list_demos
List walkable pack demos
List the walkable demo scenes staff have built from single packs. Each is a small environment a person can walk through on the site and an agent can load as a layout. Use get_demo for the placements.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {}}
list_licenses
List licences
Returns the sole accepted submission dedication: CC0 1.0 Universal. No licence selection is needed.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {}}
list_tags
List tags
List tags available on 3dassets.dev (slugs are what other tools accept).
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {}}
my_packs
My packs
List the user’s pack proposals with status (submitted, approved + pack URL, rejected + reason) and the status of each member model.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {'q': {'type': 'string', 'maxLength': 120, 'description': 'Alias for query, as spelled by the REST API'}, 'tag': {'type': 'string', 'description': 'Any tag slug from list_tags'}, 'page': {'type': 'integer', 'default': 1, 'maximum': 9007199254740991, 'minimum': 1}, 'sort': {'enum': ['relevance', 'newest', 'popular', 'title'], 'type': 'string', 'description': 'Default: best match for a query, newest otherwise'}, 'limit': {'type': 'integer', 'default': 10, 'maximum': 50, 'minimum': 1}, 'query': {'type': 'string', 'maxLength': 120, 'description': 'Free-text search over title and summary'}, 'style': {'type': 'string', 'description': 'Style tag slug, e.g. low-poly, realistic, voxel'}, 'theme': {'type': 'string', 'description': 'Theme tag slug, e.g. sci-fi, fantasy, modern'}, 'category': {'type': 'string', 'description': 'Category slug from list_categories'}}}
search_packs
Search game asset packs
Find cohesive free GLB game kits by text, theme or style. Returns file counts, total bytes and starter scene URLs. Use get_pack for every individual model and loader snippet.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'properties': {'q': {'type': 'string', 'maxLength': 120, 'description': 'Alias for query, as spelled by the REST API'}, 'query': {'type': 'string', 'maxLength': 120, 'description': 'Free-text search over pack titles and summaries'}, 'style': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1, 'description': 'Style tag slug, e.g. low-poly, realistic, voxel'}, 'theme': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1, 'description': 'Theme tag slug, e.g. sci-fi, fantasy, modern'}}}
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.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['url', 'title', 'summary', 'category', 'attestation'], 'properties': {'url': {'type': 'string', 'format': 'uri'}, 'tags': {'type': 'array', 'items': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}, 'default': [], 'maxItems': 12}, 'title': {'type': 'string', 'maxLength': 120, 'minLength': 2}, 'aiModel': {'type': 'string', 'maxLength': 160, 'minLength': 1, 'description': 'Contributor-reported model ID or custom model/tool name; use list_ai_models for suggestions. Omit if unknown.'}, 'license': {'type': 'string', 'const': 'cc0-1.0', 'default': 'cc0-1.0', 'description': 'Fixed CC0 1.0 Universal dedication; no licence selection'}, 'summary': {'type': 'string', 'maxLength': 280, 'minLength': 10, 'description': 'Plain 1â\x80\x932 sentence description'}, 'category': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1, 'description': 'From list_categories'}, 'sourceUrl': {'type': 'string', 'format': 'uri', 'description': 'Where the original was first published'}, 'aiGenerated': {'type': 'boolean', 'default': False, 'description': 'AI helped create geometry, code or textures; not merely uploading'}, 'attestation': {'type': 'boolean', 'const': True, 'description': 'Required contributor acceptance (including for agent submissions): I confirm that I created this asset or hold the rights to publish it under CC0 1.0 Universal, and agree to dedicate it to the public domain under CC0 so anyone can use, modify and redistribute it for personal or commercial purposes without attribution. I understand this dedication is irrevocable and the asset will be reviewed before publishing.'}, 'description': {'type': 'string', 'maxLength': 5000, 'description': 'Markdown: scale, pivot, what is included'}}}
submit_pack
Propose a pack
Group 2–50 of the user’s own uploads (any that are processing, pending or published) into a pack proposal. Upload the models first with finalize_upload or submit_asset_from_url, then pass their slugs here. Each model is still reviewed on its own; a person approves the pack as a whole, which publishes any members still pending and creates the pack page. Nothing goes live until then. The user is emailed the outcome.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['title', 'summary', 'assets'], 'properties': {'title': {'type': 'string', 'maxLength': 120, 'minLength': 2}, 'assets': {'type': 'array', 'items': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}, 'maxItems': 50, 'minItems': 2}, 'summary': {'type': 'string', 'maxLength': 280, 'minLength': 10}, 'description': {'type': 'string', 'maxLength': 5000}}}
update_asset
Update asset
Edit the metadata of one of the user’s own assets. The uploaded GLB can never be changed. Editing an asset that is already published does not change it: the proposal goes to the review queue and the live version keeps serving until a person approves it.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['slug'], 'properties': {'slug': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}, 'tags': {'type': 'array', 'items': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1}, 'maxItems': 12}, 'title': {'type': 'string', 'maxLength': 120, 'minLength': 2}, 'aiModel': {'type': 'string', 'maxLength': 160, 'description': 'Model ID or custom name; empty string clears attribution'}, 'summary': {'type': 'string', 'maxLength': 280, 'minLength': 10}, 'category': {'type': 'string', 'pattern': '^[a-z0-9]+(?:-[a-z0-9]+)*$', 'maxLength': 64, 'minLength': 1, 'description': 'From list_categories'}, 'aiGenerated': {'type': 'boolean'}, 'description': {'type': 'string', 'maxLength': 5000}}}
verify_account
Verify account
Exchange the emailed 6-digit code for the account’s API key. Show the key to the user and tell them to configure it as the Bearer token for this MCP server.
Input schema 
{'type': 'object', '$schema': 'https://json-schema.org/draft/2020-12/schema', 'required': ['email', 'code'], 'properties': {'code': {'type': 'string', 'pattern': '^\\d{6}$'}, 'email': {'type': 'string', 'format': 'email', 'pattern': "^(?!\\.)(?!.*\\.\\.)([A-Za-z0-9_'+\\-\\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"}}}
History

Recent tool changes

Added
update_asset
Sept. 17, 2026, 12:39 p.m.
Added
my_packs
Sept. 17, 2026, 12:39 p.m.
Added
submit_pack
Sept. 17, 2026, 12:39 p.m.
Added
my_assets
Sept. 17, 2026, 12:39 p.m.
Added
finalize_upload
Sept. 17, 2026, 12:39 p.m.
Added
get_upload_url
Sept. 17, 2026, 12:39 p.m.
Added
submit_asset_from_url
Sept. 17, 2026, 12:39 p.m.
Added
verify_account
Sept. 17, 2026, 12:39 p.m.
Added
create_account
Sept. 17, 2026, 12:39 p.m.
Added
list_ai_models
Sept. 17, 2026, 12:39 p.m.
Added
list_licenses
Sept. 17, 2026, 12:39 p.m.
Added
list_tags
Sept. 17, 2026, 12:39 p.m.
Added
list_categories
Sept. 17, 2026, 12:39 p.m.
Added
get_asset_usage
Sept. 17, 2026, 12:39 p.m.
Added
get_asset
Sept. 17, 2026, 12:39 p.m.
Added
search_assets
Sept. 17, 2026, 12:39 p.m.
Added
get_demo
Sept. 17, 2026, 12:39 p.m.
Added
list_demos
Sept. 17, 2026, 12:39 p.m.
Added
get_pack
Sept. 17, 2026, 12:39 p.m.
Added
search_packs
Sept. 17, 2026, 12:39 p.m.
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