Greasy Fork is available in English.
Scans page, sends text to Base44 AI, returns summary.
// ==UserScript==
// @name AI Scan Overlay
// @namespace http://tampermonkey.net/
// @version 3.0
// @description Scans page, sends text to Base44 AI, returns summary.
// @match *://*/*
// @grant none
// ==/UserScript==
(function () {
'use strict';
// -----------------------------
// 🔑 API KEY (YOU FILL THIS IN)
// -----------------------------
const API_KEY = "'e7c073784a0c404c8b2aee5d8d70f102', // or use await User.me() to get the API key"; // <--- paste your Base44 API key here
// -----------------------------
// UI BUTTON
// -----------------------------
const btn = document.createElement('button');
btn.textContent = 'AI Scan';
Object.assign(btn.style, {
position: 'fixed',
bottom: '20px',
right: '20px',
zIndex: '999999',
padding: '10px 16px',
backgroundColor: '#22c55e',
color: '#ffffff',
border: 'none',
borderRadius: '6px',
fontFamily: 'system-ui, sans-serif',
fontSize: '14px',
cursor: 'pointer',
boxShadow: '0 2px 8px rgba(0,0,0,0.25)',
opacity: '0.9',
transition: 'opacity 0.2s, transform 0.1s'
});
btn.addEventListener('mouseenter', () => {
btn.style.opacity = '1';
btn.style.transform = 'translateY(-1px)';
});
btn.addEventListener('mouseleave', () => {
btn.style.opacity = '0.9';
btn.style.transform = 'translateY(0)';
});
document.body.appendChild(btn);
// -----------------------------
// CLICK HANDLER
// -----------------------------
btn.addEventListener('click', async () => {
if (!API_KEY) {
alert("You must paste your Base44 API key into the script first.");
return;
}
await runScanEffect();
const text = extractVisibleText();
const aiResponse = await askBase44(text);
alert(aiResponse);
});
// -----------------------------
// TEXT EXTRACTION
// -----------------------------
function extractVisibleText() {
const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT, {
acceptNode: (node) => {
if (!node.parentElement) return NodeFilter.FILTER_REJECT;
const style = window.getComputedStyle(node.parentElement);
if (style.visibility === 'hidden' || style.display === 'none') {
return NodeFilter.FILTER_REJECT;
}
return NodeFilter.FILTER_ACCEPT;
}
});
let text = "";
let node;
while ((node = walker.nextNode())) {
const trimmed = node.textContent.trim();
if (trimmed.length > 0) text += trimmed + " ";
}
return text.slice(0, 8000); // safety limit
}
// -----------------------------
// BASE44 AI REQUEST
// -----------------------------
async function askBase44(text) {
try {
const response = await fetch("https://app.base44.com/api/apps/6965c217b671e534baa0fd20/entities/Conversation", {
method: "POST",
headers: {
"api_key": API_KEY,
"Content-Type": "application/json"
},
body: JSON.stringify({
title: "AI Scan Summary",
messages: [
{
role: "user",
content: "Summarize this webpage text: " + text
}
],
mode: "chat"
})
});
const data = await response.json();
// Base44 returns the AI response inside the entity
const lastMessage = data?.messages?.[data.messages.length - 1]?.content;
return lastMessage || "AI returned no message.";
} catch (err) {
return "AI request failed: " + err.message;
}
}
// -----------------------------
// SCAN ANIMATION
// -----------------------------
function runScanEffect() {
return new Promise((resolve) => {
const overlay = document.createElement('div');
Object.assign(overlay.style, {
position: 'fixed',
top: '0',
left: '0',
width: '100vw',
height: '100vh',
backgroundColor: 'rgba(0,0,0,0.5)',
zIndex: '999998',
pointerEvents: 'none',
overflow: 'hidden'
});
const line = document.createElement('div');
Object.assign(line.style, {
position: 'absolute',
top: '-10%',
left: '0',
width: '100%',
height: '4px',
background: 'linear-gradient(to right, transparent, #22c55e, transparent)',
boxShadow: '0 0 20px #22c55e',
filter: 'blur(0.5px)'
});
overlay.appendChild(line);
document.body.appendChild(overlay);
const style = document.createElement('style');
style.textContent = `
@keyframes aiGreenScan {
0% { top: -10%; opacity: 0; }
10% { opacity: 1; }
90% { opacity: 1; }
100% { top: 110%; opacity: 0; }
}
`;
document.head.appendChild(style);
line.style.animation = 'aiGreenScan 1.5s ease-in-out forwards';
const grid = document.createElement('div');
Object.assign(grid.style, {
position: 'absolute',
inset: '0',
backgroundImage:
'linear-gradient(rgba(34,197,94,0.12) 1px, transparent 1px),' +
'linear-gradient(90deg, rgba(34,197,94,0.12) 1px, transparent 1px)',
backgroundSize: '40px 40px',
mixBlendMode: 'screen',
opacity: '0',
transition: 'opacity 0.2s'
});
overlay.appendChild(grid);
setTimeout(() => { grid.style.opacity = '1'; }, 100);
setTimeout(() => { grid.style.opacity = '0'; }, 1300);
setTimeout(() => {
overlay.remove();
style.remove();
resolve();
}, 1600);
});
}
})();