A trading lab for you and your AI

Learn agentic trading.

Teach yourself — and your AI — to trade with a lab that doesn’t lie.

The benchNo signup · a few seconds
Pick a strategy you already know

One of these grades SHELF — a failing grade, printed as loudly as a winner. That’s the point.

A strong stock falls hard for a few days. You buy the bounce.

The rule we’ll testDown 10% or more in 3 days, but still above its 200-day average. Buy the shares, hold 10 days.

Simulation for learning. Paper money, real data, not investment advice.

Pick a strategy everyone talks about. Watch it get graded on real prices, real spreads, and history the rules never saw. Then read why, in plain words.

  • Buys the ask, sells the bid
  • Never sees tomorrow
  • Graded on unseen history

Our own reference signal graded SHADOWpositive expected value, and still not good enough to call LIVE. That’s the bar.

Never traded before? Start at lesson 1 →
How learning works here

Four steps. Do every one yourself,
or hand any of them to your AI.

Nothing here is a course you sit through. It is a loop you run: pick something, change one thing, look at what actually happened.

  1. 01

    Pick a lesson

    Start from something people actually trade — buy the dip, the golden cross, a covered call. Each one is a lesson with a question attached: does this still work, and how would you know?

    AgentOr tell your AI: grade the golden cross on the big tech names.

  2. 02

    Run the experiment

    Change one thing. The stop, the hold, the list of stocks. Run it again. One change at a time is the only way to learn which change mattered — and the engine never remembers the last answer.

    AgentOr let your AI sweep ten variants while you read the first one.

  3. 03

    Read the honest result

    Every run comes back with what a trade kept after the real spread, what it did on history the rules had never seen, and how many trades that rests on. The unflattering half is printed too.

    AgentYour AI reads exactly the same numbers you do. There is no better answer behind an API.

  4. 04

    Trade it on your paper desk

    Put what you believe on a $100,000 paper desk marked at real quotes. Stops, a daily-loss breaker, alerts when a fill lands. Not one real dollar moves. The lessons are real anyway.

    AgentOr hand your AI the desk and have it tell you what it did, and why.

What the lab controls for

Three ways a backtest flatters itself.
All three are closed here.

Every inflated result we have ever traced came back to one of these. Learn to spot them and you can read anybody’s backtest, not just ours.

Instrument 01

It read tomorrow's paper

The easiest way to invent an edge is to let a rule see a price that hadn't printed yet, or fill at a price the day already knew.

How the lab closes itA signal on any given day sees only that day and the days before it, and the trade is entered at the NEXT day's open — never the bar it fired on. An option's path starts strictly after the signal date.

Instrument 02

It bought at a price nobody pays

Most backtests transact at the midpoint between the bid and the ask. The midpoint is an average, not an offer — nobody fills you there.

How the lab closes itYou buy at the ask and sell at the bid, every single time, and the spread shows up as a cost on the ticket. Contracts too thin to trade are skipped, not imagined into the results.

Instrument 03

It graded its own homework

Tune a rule hard enough against one stretch of history and it will look brilliant on that stretch. That is fitting, not edge, and it does not travel.

How the lab closes itThe history is split. Your rules are tuned on one half and graded on the other, and you see both numbers side by side. Take-profit targets are left out of the grade because they flatter a curve without earning it.

And what your report says at the end

LIVE

The edge was still there on history the rules had never seen. Earned, not fitted.

SHADOW

Promising, not proven — usually a thin sample or a soft second half. Watch it on paper first.

SHELF

Our engine couldn't find an edge once the honest rules applied. That's our read, not the last word.

It is our engine’s read, printed beside your own judgement. You choose what runs — we have never taken that decision from anyone, and we are not going to start.

The agentic door

Your AI gets a desk of its own.

Not a chat window bolted onto a chart. A real set of credentials scoped to one paper desk, so your agent can research, backtest, deploy and report back without you ferrying anything between two windows.

Your AI is treated as a member, not a guest. It meets the same honest engine, the same refusals, and the same numbers you do.

  1. 1

    Open a desk

    A free account comes with a paper desk. That desk, not your login, is what your AI works on.

  2. 2

    Mint a key pair

    One button on your desks page prints a key pair scoped to that one desk — and writes the connect prompt for you, ready to paste.

  3. 3

    Paste it into your AI

    Claude, Gemini, Codex, or your own agent. It reads our agent-readable docs and gets to work: backtest, deploy, read the desk, report back.

The one-paste prompt · previewYour desks page writes the real one — keys minted, values filled in, ready to paste.
You are now my trading agent for my Quantradin paper desk "«your desk»".

API base: «filled in for you»
Read this first: «api base»/llms.txt
Desk: account #«id» ("«your desk»")

Authenticate every request with these two headers (this is the per-desk key pair):
X-Vega-Account-Key-Id: «minted on your desks page»
X-Vega-Account-Secret: «shown once»

Rules:
- Authenticate exactly as llms.txt describes.
- This key ONLY controls desk #«id» — using it on any other desk is rejected.
- You may run backtests and read this desk (equity, positions, alpha health). This key can NOT deploy or trade — it is scoped to testing.
- Paper trades only. Never share this key.

First task: fetch «api base»/llms.txt, then read this desk's current state
(GET «api base»/v1/me/accounts/«id») and give me a short plain-English status:
equity, open positions, and what's deployed.

Most backtests are advertising.

So we built the one that can’t be.

QUANTRADIN

This engine came out of a working trading rig, not a marketing brief. It keeps the rules that rig earned the hard way.

Build your own

When you want to write your own rule.

The same builder members use — plain-English rules, 158 indicators, options and spreads. Still no signup, still the honest engine. 3 free runs left today. Free runs scan up to 20 stocks; an account opens all of them.

Straight answers

The questions that actually matter.

Is any of this real money?

No. Every desk is a simulation funded with $100,000 of pretend cash, and there is no broker connection. The market data marking it is real; the money never is.

What does “agentic trading” mean here?

Your AI gets its own credentials and its own paper desk, so it can research, backtest and trade without you copying anything back and forth. You keep every decision that matters — it just does the work.

Where does the data come from?

Real split-adjusted daily bars and real daily option marks on liquid US names. Where we don't have a recorded two-sided quote we model the spread at 2.5% each way, and we label it as modeled everywhere it touches a result.

What does SHADOW mean?

It's the middle read: something looked promising but didn't fully hold up on unseen history, usually because there weren't many trades. Paper-trade it and keep watching.

Will it tell me my strategy is bad?

No. It gives you our engine's read beside your own judgement, and you choose what runs. We'll show you when a stop would have done better; we won't swap it for you or refuse your idea.

What does it cost?

Nothing. No card, no trial clock, for as long as early access lasts.

What it costs

Free while we’re new. All of it.

$0 today — every member is on the full plan for nothing during the founding era, and there are no card fields anywhere on this site. When prices start, Quantradin is $12 a month or $99 a year — and founders keep their discount for good.

Zero real dollars. All real lessons.

Learn how a strategy really behaves — yours or your AI’s — before a single real dollar is involved.