Works with Claude, Cursor & Codex

Test a hundred trading ideas before lunch.

Describe your strategies in plain English. Your AI turns each one into a real backtest, runs them against years of market data, and hands back the numbers — dozens at a time, in seconds.

Start freeSee how it worksNo card. Nothing to install.

One prompt, sixteen backtests

ran in 218 ms · 5 worth a second look
BTC 1h-21.2%
ETH 1h+11.3%
SOL 1h-20.4%
BNB 1h-9.8%
BTC 4h-17.9%
ETH 4h-15.9%
SOL 4h+7.8%
BNB 4h-17.2%
BTC 15m-23.2%
ETH 15m+9.0%
SOL 15m-16.1%
BNB 15m-11.4%
BTC 1d+36.2%
ETH 1d-21.4%
SOL 1d+21.8%
BNB 1d-8.4%

Most ideas do not work. Finding that out in seconds — instead of after a month of manual testing, or a year of real money — is the entire point.

plain English in real backtest outengine 7,000,000 bars/secdata years of real market historymarkets BTC · ETH · SOL · 1,000+ perpstimeframes 1m → 1dsetup one commandfree tier 500 backtests a week
How it works

You already know how to use it.

There is no strategy builder to learn and no code to write. You describe what you want to test, in a sentence, to the AI you already use.

Claude
Reading the strategy format…
Checking rules can actually fire — 3/3 valid
Running 3 backtests over 8,785 bars…
RSI 30/70 dip buy+2.03%sharpe 0.48
Bollinger reversion−8.30%sharpe −0.91
RSI 45/55 swing−9.59%sharpe −1.25

Only the first is worth keeping — and it still lost to simply holding BTC.

01

Say it in a sentence

“Buy dips in an uptrend.” “Try RSI between 20 and 40.” “Compare these three on ETH.” No syntax, no builder, no code.

02

It tests everything you asked for

Each idea becomes a real backtest over years of minute-to-daily history. Ask for a range and it sweeps hundreds of variations at once.

03

You get numbers, not opinions

Return, drawdown, win rate, Sharpe, every individual trade, and an equity curve — for each idea, side by side.

Getting started

Two minutes from here to your first result.

1

Create an account

Free, no card. You get an API key on the account page — copy it, it is shown once.

2

Connect your AI

Paste one command into your terminal.

claude mcp add --transport http \
  aibacktester https://aibacktester.app/mcp \
  --header "Authorization: Bearer pk_..."
3

Ask for a backtest

In any chat, just say what you want:

“Test buying BTC dips in an uptrend during 2024, and try a few RSI levels.”
What comes back

A full report for every idea you test.

Equity curve

What your balance did, bar by bar, with drawdown underneath.

Every trade

Entry, exit, P&L and what closed it — stop, target or signal.

Risk numbers

Sharpe, Sortino, Calmar, max drawdown, exposure, win rate.

A market benchmark

What simply holding the asset would have returned instead.

Parameter sweeps

Hundreds of variations at once, ranked, with the weak ones rejected.

Forward testing

Promote an idea and watch it run on data it has never seen.

Real costs

Fees, slippage and funding charged — leverage checked for liquidation.

Shareable reports

Every result gets a link you can send to anyone.

Every number is computed the way a real broker would fill you, not the way that flatters the chart. How we calculate results →

What would you test first?

Free forever tier — 500 backtests a week, which is more ideas than most people have.

Start free