Chrome Extension · Free to start
Scan charts with your own rules.
Paste your trading rules once. Maggie reads the chart and returns structured analysis — stage, setup, risk map, actionability — every time you ask.
Bring your own API key and scan for free. No subscription required.
How it works
01
Write your rules
Paste your trading system into the extension — Stan Weinstein stages, your own momentum criteria, anything. Rules are stored locally.
02
Open a chart
Navigate to any chart on TradingView, Finviz, or wherever you trade. Click the Maggie icon and hit Scan.
03
Get structured analysis
Maggie returns trend stage, setup quality, volume pattern, risk map, and a plain-English actionability summary. Every time, in the same format.
Built for traders who have a system
Your rules, not ours
Maggie doesn't have an opinion. It applies your criteria to what it sees on screen and reports back. No black-box signals.
Bring your own API key
Connect your own OpenAI or Claude key. Your data stays between you and the AI provider — Maggie never sees your charts.
Consistent output format
Every scan returns the same structured fields: stage, setup, base structure, volume, risk map, and actionability score. Easy to compare.
Auto-scan mode
Set a scan interval and Maggie automatically scans the chart in view. Works while you're reviewing a watchlist. (Beta and Pro)
Multiple rulesets
Switch between rulesets — one for breakouts, one for mean reversion, one for earnings setups. No re-pasting. (Beta and Pro)
Server scans
No API key? Pro users can run scans through Maggie's servers. Same output, no setup. (Pro)
Start free, upgrade when you need to
Free users get full BYOK scanning with the Weinstein ruleset. Beta users get auto-scan and multiple rulesets. Pro adds server scans and sync across devices.