187K Game Assets.
One API Call.
Search 187K+ game assets or generate new ones with AI. Sprites, tilesets, SFX, 3D models — ready to drop into your game in seconds.
50 free credits on signup — no credit card required
Simple by design
One request. Ranked semantic results. Works with any language.
curl "https://api.cortexstudio.dev/v1/assets/search?q=pixel+art+sword+glowing+blue&type=image&limit=5" \
-H "Authorization: Bearer $CORTEX_API_KEY"{
"results": [
{
"id": "ast_7xKpQ2mNvL",
"name": "Glowing Blue Pixel Sword",
"type": "image",
"assetClass": "sprite",
"style": "pixel-art",
"tags": ["pixel-art", "weapon", "sword", "glow", "blue"],
"preview": "https://api.cortexstudio.dev/api/v1/assets/ast_7xKpQ2mNvL/preview",
"similarity": 0.964,
"creditCost": 3
},
{
"id": "ast_3rMjF9tYcX",
"name": "Ice Crystal Blade",
"type": "image",
"assetClass": "sprite",
"style": "pixel-art",
"tags": ["pixel-art", "weapon", "sword", "ice"],
"preview": "https://api.cortexstudio.dev/api/v1/assets/ast_3rMjF9tYcX/preview",
"similarity": 0.921,
"creditCost": 3
}
],
"creditsRemaining": 47,
"total": 312
}Every asset type covered
One index, four categories, millions of possible queries.
Images
Sprites, tilesets, backgrounds, icons, and UI sheets. Pixel art, vector, hand-drawn — all indexed.
Audio
Sound effects, background music, ambience loops, and voice clips. WAV and MP3 ready-to-use.
3D Models
GLB props, characters, and environment pieces. Low-poly and high-detail, game-engine ready.
Fonts
Pixel fonts, display typefaces, handwritten styles. Licensed for commercial game projects.
How it works
Four steps from query to game-ready asset.
Search
Send a natural-language query to the API. Semantic search across 187K assets returns ranked results — no keyword matching required. Search is completely free, unlimited.
Free · Unlimited · < 80ms median latency
Preview
Every result includes a watermarked thumbnail URL and, for audio, a 30-second preview clip. Browse at zero cost until you find exactly the right asset.
Thumbnails & clips always free
Download
Download the full-quality, license-cleared file. Cost depends on asset type: images 1 cr, audio 1 cr, 3D models 2 cr, fonts 1 cr. Credits never expire.
1–2 credits per asset · Credits never expire
Generate
Can't find what you need? Generate custom assets with OpenAI or Gemini — sprites, backgrounds, icons, anything. Generated images are automatically added to the database for future searches.
3–8 credits · OpenAI & Gemini · Transparent PNG support
Works with your AI coding assistant
Install the Cortex skill in Claude Code or Codex, and your AI assistant will automatically search, preview, and download assets while you build your game.
# Add the Cortex marketplace
claude plugin marketplace add bruno1308/cortex-skills# Install the plugin
claude plugin install cortex-assets@cortex# Set your API key
export CORTEX_API_KEY="your_api_key"# Then just ask your AI to find assets
"I need pixel art sprites for a fantasy RPG — a knight, a dragon, and some treasure chests"Semantic Search
Describe what you need in plain English. The AI finds the best matches across 187K assets automatically.
Credit-Aware
Checks your balance and confirms before spending credits. Search and preview are always free.
Auto-Organize
Downloaded assets are saved to the right project directories with descriptive filenames.
AI Generation
Can't find it? Generate custom sprites, backgrounds, and icons with OpenAI or Gemini — right from the same API.
Works with Claude Code, Codex CLI, and any agent that supports Claude Code skills.
Simple pricing
Credits never expire. 1–2 cr per download, 3–8 cr per generation. Search is always free.
Starter
100 credits
- ✓100 credits (50–100 assets)
- ✓Unlimited searches
- ✓All asset categories
- ✓AI image generation (3–8 cr)
- ✓Commercial license
- ✓API key on signup
Builder
500 credits
- ✓500 credits (250–500 assets)
- ✓Unlimited searches
- ✓All asset categories
- ✓AI image generation (3–8 cr)
- ✓Commercial license
- ✓Priority support
Studio
2,000 credits
- ✓2,000 credits (1,000–2,000 assets)
- ✓Unlimited searches
- ✓All asset categories
- ✓AI image generation (3–8 cr)
- ✓Commercial license
- ✓Priority support + SLA
All plans include 50 free credits on signup. Need more? See all options →
Start building with 50 free credits
Instant access. No credit card. 50 free credits let you download 25–50 assets and run unlimited searches.
Create your free account →