How do I build an indicator?
A custom indicator is a small reusable calculation. You build it once, then drop it into any strategy like a built-in indicator. The example above is the smallest possible indicator: it averages the close price over the last 20 bars.
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Open the indicator builder
From the dashboard, click New Indicator. The builder is the same canvas as the strategy editor, but with a smaller block palette focused on math, transforms and conditions.
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Start with the Input block
Every custom indicator begins with an Input block. It is the data the indicator receives when used in a strategy — usually OHLCV (the full candle).
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Build the calculation
Pick the part of the candle you need (for example Close), then chain transforms and math blocks. The example uses Rolling Mean with period 20 — the building block of a Simple Moving Average.
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End with the Output block
Connect the result into an Output block and give it a name like value, upper, or lower. This name is what you select when the indicator has multiple outputs (for example Bollinger Bands).
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Save and reuse
Save the indicator. It now appears in the My Indicators category of the strategy editor and behaves exactly like a built-in indicator.