DeepCharts indicators, and the ones code OFF gets you

In short

DeepCharts publishes a development kit for writing your own indicators in C#. It is the kit we use to build our scalping and day trading indicators. Promo code OFF, which takes an extra 10% off every plan, also unlocks our in-house indicators on any DeepChart license, automatically and at no extra cost. Through our link, OFF is already filled in at the Payment step; without the link, you type it yourself, and access is the same. The rest of this page explains how indicators work, what the kit really allows, and how access opens.

How it works: an indicator is a C# class

A DeepCharts indicator is a C# class compiled into a dll. It inherits from the kit's base class VolSysAPI.Indicators.Indicator and is made of four parts:

• A registration. A static Register() method declares the name the indicator shows under in the chart's list. Every class in the dll that has one becomes an indicator.
• Parameters. They are simply the public properties of the class: DeepCharts shows them in the settings window and saves them with the workspace.
• Series and annotations. Series plot one value per bar (lines, bars, markers). Annotations draw rectangles, lines and text anywhere on the chart.
• A life cycle. The chart calls the indicator's methods in a set order (OnOpen, OnTick, OnClose and a few more), and that is where the calculation happens.

Writing one takes DeepCharts installed, the .NET 10 SDK and an editor (Visual Studio, Rider or VS Code). The official documentation ships a project ready to build with seven examples, from a simple moving average to a book imbalance. Once built, the dll lands in Documents\Deepchart\Indicators: DeepCharts watches that folder, reloads the indicator without a restart, and lists it under Personal.

What an indicator can read from the market

• Bars. Open, high, low, close, and their volume totals: buy and sell volume apart, trade count, maximum and minimum delta, VWAP.
• Volume at price. For every level traded inside the bar, total, buy and sell volume. That is the raw material of a footprint, and the indicator has to ask the chart for it.
• Every trade, live. Its price, its size, the aggressor side, and the best bid and ask at the moment it printed. It is the finest data on offer, and the one a scalper cares about.
• The order book, on desktop only. The official book imbalance example is restricted to the desktop chart for exactly that reason.

One limit worth knowing: trades are delivered live. On history, an indicator rebuilds its calculation from bar totals, except on desktop where past trades remain available in detail. A good scalping indicator is therefore designed for the live market first. If those words are new, the order flow guide lays out the basics.

Desktop, server, or both

The same dll can be computed by the chart installed on your PC or by the DeepCharts servers, which then send the result to the chart. The vendor calls it a hybrid indicator. As soon as an indicator touches a desktop only feature, such as the order book or the detailed trade history, it becomes a desktop indicator. When it runs on the server, the code never leaves their machines, and every chart showing the same symbol with the same settings shares a single calculation.

An indicator reaches a chart in one of three ways. A local dll, which DeepCharts only loads if it carries the developer id of the signed-in account, so it only works for the person it was built for. A shared package, published by a developer for given users, then downloaded and updated by DeepCharts on its own. Or a server package, computed at the vendor. According to the documentation, package publishing is not yet open to every developer.

The orderflowfutures indicators

We read the NQ, the ES and the FDAX in DeepCharts every session, and the session journal shows it. Some reflexes come back day after day. Rather than redo them by eye, we code them. These are scalping and day trading tools, built on what the kit really exposes: every trade with its aggressor, the volume at each price, and the book on desktop. They do not replace the native DeepCharts tools, they add to them.

Code OFF also unlocks our in-house indicators on any DeepChart license, automatically and at no extra cost. Without code OFF, they are not offered on their own yet: a separate purchase is planned for later. The library grows session after session, and every new indicator goes out to everyone entitled to it.

How to get access

1. Take your DeepChart license with code OFF. Any DeepChart plan counts: Orderflow, Full Advanced or Pro. Through our link, promo code OFF is already filled in at the Payment step; without the link, type it in the promo code field yourself. Both count the same, and it takes an extra 10% off every plan, monthly or yearly, on top of any discount running.
2. Access opens on its own, at no extra cost. Nothing to request, nothing to prove: the license taken with OFF is enough, and the indicators cost nothing on top of it. The Discord server is there for setup help and your questions, not to approve access.
3. We deliver the indicators to your account. As a dll built for your account for now, then as a shared package with automatic updates once DeepCharts opens package publishing.

That delivery method is not a detail. A dll built for your account does not load on anyone else's. The exclusivity does not rest on a promise, it is written into the way DeepCharts loads indicators.

Why go without?

Going through our link never costs more than going straight to DeepCharts. And promo code OFF, which the link fills in for you at the Payment step, takes an extra 10% off every plan, monthly or yearly, on top of any discount running: Orderflow at $486 a year with code OFF, instead of $540, calculated on the grid. And the same code opens tools nobody else can install, at no extra cost. Taking the same license without code OFF means paying more to get less.

Prices plan by plan, with and without the code, data feed included, are on the DeepCharts promo code OFF page.