Live · Real trades at 1/100

Trading Lab

A bot that buys for you on payday, and two AI bots that set the mix every day.

Type: Web app + worker · my real account, public demo
Period: Oct 2026
Runs on: AWS Lightsail, Sydney · Docker Compose · Cloudflare Tunnel

About

Made for people who invest a set amount every payday. Pick up to ten funds you like and the split between them, answer a few questions about how you buy, and a bot buys for you: on payday, skipping when prices run hot, buying big after a drop. It shows how the last ten years would have gone next to just buying every month.

Beside it, two AI bots decide every day how much of ten funds I picked to hold: one reads the news, the other sees only price charts with the names hidden.

What it does

Copy me: Pick up to ten funds and a split, then answer four to six questions. They become a rule: how much on payday, when to skip, when to buy more. Selling isn't copied.
Parallel yous: The same money with one rule changed: never skipping, buying only after drops, waiting longer. See which version of you would have done better.
What to do next: How much of each fund to buy next payday and why, and how close prices are to the points where it would skip or buy more.
Backtests: Try a rule on the last ten years and compare it, year by year, with just buying every month.
Two AI bots: Every day, AI decides how much of ten funds and cash to hold, and shows each change with its reason. One reads the news and links the articles; the other sees only charts with the names hidden. From the day they start, they're compared with each other and with the copy-me bot.
Real orders, small: After the US market closes, the bots decide, and the orders go to my real account at 1/100, in fractional shares. Every trade is reported to Telegram.
A demo anyone can try: Made-up prices and example bots. The demo's AI bots show sample decisions made by rules, not a real AI. Copy-me and backtests work; nothing touches a real account.

Architecture

The screens and the worker only talk through the database. Only the worker reaches the brokerage, Claude and Telegram, and the demo runs on its own data with no keys.

How it's built

Backend: Python 3.14 · uv · FastAPI · Pydantic v2 · SQLAlchemy 2 · Alembic · pandas
Frontend: React · TypeScript · Vite · TanStack Query · Lightweight Charts
Data: PostgreSQL 17 · Toss Securities Open API · synthetic prices for the demo
AI: Claude Sonnet 5.5 · web search · structured output (JSON schema) · Anthropic SDK
Infra: AWS Lightsail, Sydney (Terraform) · Docker Compose · GHCR · GitHub Actions with a self-hosted runner · Cloudflare Tunnel & Access · Tailscale · Telegram alerts
Quality: pytest · ruff · mypy (strict) · oxlint

Copying a habit, question 3 of 6: how much goes in each month, with amounts to pick

The market-analysis AI bot in the demo: today's decision with its reasons and a target weight for each fund. Demo decisions are made by rules, not a real AI

Parallel yous: the same money with one rule changed each time

Trying the copy-me rule on past prices: the monthly amount, when to skip or buy big, and which funds

Not investment advice. The screenshots use the demo's synthetic prices, where every order is simulated. The AI bot's reasons are for reference and can be wrong.