FAQ
General
Section titled “General”What is Quantly?
Section titled “What is Quantly?”Quantly is a quantitative trading platform for designing, backtesting, and executing algorithmic strategies with a visual builder and AI generation.
Do I need to code?
Section titled “Do I need to code?”No. Use the tree-based editor, Generate with AI on the Strategies page, or connect an AI assistant through MCP. See AI Generation.
Can I generate strategies with AI?
Section titled “Can I generate strategies with AI?”Yes. In the app, click Generate with AI on the Strategies page and describe what you want. Quantly builds a new strategy and runs a backtest so you can review it before saving. You can also connect tools like Cursor through MCP to create strategies and manage your portfolio in natural language.
What plans are available?
Section titled “What plans are available?”One plan, Quantly Pro, with paper and live trading included:
- Monthly - $25/month
- Annual - $240/year (equivalent to $20/month when billed annually)
See Billing and Plans.
Is there a free tier?
Section titled “Is there a free tier?”Quantly is a paid subscription product. Use the demo to explore before subscribing.
Brokerage
Section titled “Brokerage”Which brokers does Quantly support?
Section titled “Which brokers does Quantly support?”See Supported Brokers. Connect in Settings → Trading → Connected Accounts via OAuth.
Is my money at risk in a paper account?
Section titled “Is my money at risk in a paper account?”No. Paper accounts use simulated money only.
Can I trade live?
Section titled “Can I trade live?”Yes, when your broker supports live connection (see Supported Brokers). Live trading uses real capital, so start in a paper account until you trust your strategy.
How does connection work?
Section titled “How does connection work?”Quantly uses OAuth 2.0. You sign in with your brokerage and approve access. Quantly never sees your brokerage password or API keys. Tokens are encrypted at rest.
Strategies
Section titled “Strategies”How many strategies can I create?
Section titled “How many strategies can I create?”Subscribers can create unlimited strategies.
What assets are supported?
Section titled “What assets are supported?”US stocks and ETFs on major exchanges. Crypto and options are not supported. See Assets.
What timeframes are available?
Section titled “What timeframes are available?”Daily data is primary for execution. Intraday bar settings depend on indicator and data availability in the builder.
How far back does data go?
Section titled “How far back does data go?”Up to 60+ years for daily backtests on many symbols.
Which indicators are available?
Section titled “Which indicators are available?”Nine indicators: Current Price, SMA, EMA, RSI, Cum Return, MA Return, Stdev, Stdev Price, and Max Drawdown. See Indicators.
How does Quantly handle order netting?
Section titled “How does Quantly handle order netting?”When several strategies in the same brokerage account trade at once, Quantly nets their orders before sending anything to your broker:
- One order per ticker. Every strategy’s change in a symbol is added up, and only the net difference goes to the broker. If one strategy buys 10 shares of a ticker and another sells 6, Quantly places a single buy for 4.
- Offsets are settled internally. The shares that cancel out move between your strategies at the run’s reference price, with no broker order and no spread.
- Sells go first. Net sells are placed and filled before buys, so the cash they free up can fund the buys.
- Each strategy keeps its own books. Fills are split back to the strategies that asked for them, so per-strategy positions, cash, and performance stay separate even though the broker sees one combined position.
Netting only applies to strategies that trade in the same minute. It does not carry across the day: a strategy that trades at 10:00 and another that trades at 15:30 each place their own orders, even in the same ticker.
Netting means fewer, smaller orders for the same result.
Integrations
Section titled “Integrations”What is the difference between MCP and the REST API?
Section titled “What is the difference between MCP and the REST API?”They are separate integration paths with different auth:
- MCP - for AI assistants like Cursor. Connect with OAuth (browser sign-in). Endpoint:
https://api.quantly.trade/mcp. - REST API - for developers and scripts. Authenticate with API keys (
qk_live_...) from Settings → API Keys. Base URL:https://api.quantly.trade/api/v1/....
Do I need an API key for MCP?
Section titled “Do I need an API key for MCP?”No. MCP clients authenticate with OAuth. Create API keys only when you need programmatic REST access from your own code.
Billing
Section titled “Billing”Can I switch between monthly and annual?
Section titled “Can I switch between monthly and annual?”Yes, anytime in Settings → Billing. Quantly shows the exact prorated amount before you confirm. See Switching billing cycle.
How do I cancel?
Section titled “How do I cancel?”Settings → Billing → Manage Billing. You keep access until the end of the period you already paid for.
Can I use a promotion code?
Section titled “Can I use a promotion code?”Yes. Enter it on the Stripe checkout page when you subscribe. Some codes apply only to monthly or only to annual billing.
Do referrals stack?
Section titled “Do referrals stack?”Referred users get 20% off. Referrers earn a bigger discount with each referral, up to a free subscription at 5 referrals. See Referrals.
More help
Section titled “More help”See Troubleshooting for common errors.