Developer API & open data

Every prompt in the Promptkoi library — 2121 of them, each written for a specific model and published with its exact settings — is available as free, static JSON. No API key, no rate limit, no sign-up. The dataset is licensed CC BY 4.0: reuse it for anything, including commercially, as long as you credit Promptkoi with a link.

The full dataset

GET /data/prompts.json returns the entire library: title, prompt text, negative prompt, model + version, settings, tags, tested date, and canonical URL for every entry. It rebuilds on every deploy, so it's always current.

A single prompt

Any prompt page has a “Copy as JSON” block (under “For developers”) returning just that entry. The shape matches one element of the dataset array:

{
  "title": "Neon Cyberpunk City Street",
  "prompt": "neon-drenched cyberpunk city street at night, … --ar 16:9 --stylize 250",
  "model": "Midjourney",
  "model_version": "v7",
  "settings": {
    "aspect_ratio": "16:9",
    "stylize": 250
  },
  "style_tags": [
    "cyberpunk",
    "neon"
  ],
  "use_case_tags": [
    "wallpaper"
  ],
  "url": "https://promptkoi.com/prompts/midjourney/neon-cyberpunk-city/"
}

Other machine-readable endpoints

• /rss.xml — full site feed (WebSub-enabled); per-model feeds at /{model}-prompts/rss.xml.
• /sitemap-index.xml and /image-sitemap.xml — every URL with truthful lastmod.
• /llms.txt — a curated index for AI answer engines.
• /ai-image-statistics/ — aggregate corpus statistics, free to cite with attribution.

License & attribution

The prompts are free to use to generate images, with no credit needed. The dataset — the JSON files above, i.e. prompt text and metadata — is licensed under Creative Commons Attribution 4.0 (CC BY 4.0): you may copy, redistribute and build on it, including commercially, if you credit “Promptkoi” with a link to promptkoi.com. Example images are not part of the dataset. See the terms for details.