Docs

01 / What Pure Blush does

Pure Blush builds free AI tools that run 100% in your browser.

No accounts, no queues, no server GPU. Every tool runs on your own graphics chip via WebGPU — your photos never leave your device. We are the Art Institute of Pure Blush, Zurich, active since 2013.

02 / Tools

Four tools today — more on the way.

We add tools gradually. The current list is always on the tools page and in tools.json:

03 / Website integration — popup API

Put our tools on your website. Your visitors compute on their own GPUs.

How it works: 1) your visitor clicks a button on your site — you open the tool as a popup (browsers require a user gesture). 2) The popup sends a ready signal. 3) Your site sends the image via postMessage. 4) The tool processes it locally on the visitor's GPU and posts the result back. Progress events keep your UI alive. You pay nothing for compute and no images travel to any server.

Requirements: a JavaScript-capable client, a browser with WebGPU for full speed (CPU fallback works but is slow), and a one-time model download on first run (tens of MB, then cached). Popup blockers must allow the popup. Honest limit: there is no REST endpoint — server-side bots without a browser cannot run the engine, but can read this page and the machine spec below. Free, no key. Visible credit with a link to the tool is required wherever results are shown.

const popup = window.open("https://pureblush.dev/upscaler", "_blank", "width=1024,height=800");
window.addEventListener("message", (e) => {
  if (e.data && e.data.type === "refine-ready")
    popup.postMessage({ type: "refine-image", url: IMAGE_URL }, "*");
  if (e.data && e.data.type === "refine-result") {
    // e.data holds the result image + metadata
  }
};

04 / Complete spec for AI agents

One file holds the whole integration truth.

Since tools are added over time, the complete, always-current integration spec lives in llms-full.txt — protocols, parameters, model licenses. Start there; this page is the human-readable map. Machine-readable index:

llms.txt · llms-full.txt · tools.json · sitemap.md · index.md · openapi.json · api-catalog · ai-catalog · mcp.json · agent-card · markdown mirror

05 / For humans

Pricing (tools are free; HFAEE premium terms) · All tools · Contact + official gallery · About the institute