Chart Image Node

The Chart Image node generates TradingView-style chart images with technical indicators overlaid. Use it to create visual snapshots of any market — crypto, stocks, or forex — and feed them into LLM nodes for AI-powered chart analysis.

BTC Daily Chart

BINANCE:BTCUSDT

Configuration

Symbol & Chart

Symbol

Interval

Timeframe

Style

Options

Theme

Show Volume

Configuration

Field	Description
Symbol	Trading symbol in TradingView format (e.g., `BINANCE:BTCUSDT`). If you omit the exchange prefix, the node auto-detects it.
Interval	Candle interval. Options: 1m, 3m, 5m, 15m, 30m, 45m, 1h, 2h, 3h, 4h, 6h, 12h, 1D, 1W, 1M, 3M, 6M, 1Y. Default: `1h`.
Timeframe	How far back to display. Options: 1D, 5D, 1M, 3M, 6M, 1Y, 2Y, 5Y, ALL. Default: `1M`.
Style	Chart rendering style. Default: `candle`. See chart styles below.
Theme	Color theme — `dark` (default) or `light`.
Width	Chart width in pixels. Range: 200-2000. Default: `800`.
Height	Chart height in pixels. Range: 200-2000. Default: `600`.
Indicators	Optional list of technical indicators to overlay. See indicators table below.
Show Volume	Toggle volume bars below the main chart. Default: on.
Custom Title	Optional title displayed on the chart. If left empty, the node generates a descriptive title automatically.
Timezone	IANA timezone string (e.g., `America/New_York`). Default: `Etc/UTC`.
Logo URL	Optional URL for a logo overlay on the chart image.

The Symbol and Title fields support expression mode — toggle it to inject dynamic values from upstream nodes instead of static text.

Symbol Format

Use TradingView's EXCHANGE:SYMBOL format. If you provide just the symbol name, the node auto-detects the exchange:

Market	Format	Examples
Crypto	`EXCHANGE:PAIR`	`BINANCE:BTCUSDT`, `COINBASE:ETHUSD`
Stocks	`EXCHANGE:TICKER`	`NASDAQ:AAPL`, `NYSE:MSFT`
Forex	`EXCHANGE:PAIR`	`OANDA:EURUSD`, `OANDA:GBPJPY`

Auto-detection rules when no prefix is provided:

Symbols containing USDT, USDC, or BTC default to BINANCE:
Short all-caps symbols (5 characters or fewer) default to NASDAQ:
Symbols containing USD or EUR default to OANDA:
Everything else defaults to BINANCE:

Auto-detection is a convenience — always include the exchange prefix for accuracy, especially for symbols that could match multiple markets.

Technical Indicators

Select one or more indicators to overlay on your chart. These render as standard TradingView studies.

Indicator	Full Name	Default Parameters
BB	Bollinger Bands	Length: 20, StdDev: 2
EMA	Exponential Moving Average	Length: 20
SMA	Simple Moving Average	Length: 20
MACD	MACD	Fast: 12, Slow: 26, Signal: 9
RSI	Relative Strength Index	Length: 14
Stoch	Stochastic	K: 14, K Smoothing: 1, D Smoothing: 3
WilliamsR	Williams %R	Length: 14
ATR	Average True Range	Length: 14
ADX	Directional Movement Index	ADX Smoothing: 14, DI Length: 14
CCI	Commodity Channel Index	Length: 20
MFI	Money Flow Index	Length: 14
OBV	On Balance Volume	—
VWAP	Volume Weighted Average Price	—
Ichimoku	Ichimoku Cloud	Tenkan: 9, Kijun: 26, Chikou: 52

Indicators use their standard default parameters. You cannot customize indicator parameters from the UI — they use the values shown above.

Chart Styles

Style	Description
candle	Traditional candlestick chart (default)
line	Simple closing-price line
area	Filled area below the price line
bar	OHLC bar chart
hollowCandle	Hollow body for up candles, filled for down
heikinAshi	Smoothed candlesticks that filter noise
baseline	Price relative to a baseline value
hiLo	High-low range bars
column	Column/bar chart

Visual Analysis with LLMs

The most powerful pattern is feeding a chart image into a vision-capable LLM. Connect Chart Image to an LLM node, and the model can analyze candlestick patterns, support/resistance levels, trend lines, and indicator signals directly from the image.

BTC Chart

BINANCE:BTCUSDT

Analyze Chart

GPT-4o

Buy Signal?

signal = buy

Place Order

Buy BTC

In the LLM node's user prompt, reference the chart URL to pass the image for analysis:

System: You are a technical analyst. Analyze the provided chart image
and identify patterns, support/resistance levels, and trend direction.

Respond in this format:
ACTION: [BUY / SELL / HOLD]
CONFIDENCE: [0-100]%
PATTERNS: [list detected patterns]
RATIONALE: [2-3 sentence explanation]

User: Analyze this chart: {{chart.chartUrl}}

What trading action do you recommend based on the technical picture?

Vision-capable models like GPT-4o, Gemini 2.5 Flash, and Kimi K2.5 automatically detect the image URL and analyze it visually. No special configuration needed on the LLM node.

Multi-Timeframe Analysis

Generate charts at different intervals and feed them all into an LLM for a comprehensive multi-timeframe view. This helps catch signals that only appear on specific timeframes.

BTC 1h Chart

1h interval

BTC 4h Chart

4h interval

BTC 1D Chart

1D interval

Multi-TF Analysis

Claude Sonnet 4.6

In the LLM prompt, reference all three charts:

User: Analyze BTC across multiple timeframes:

1-hour chart: {{chart_1h.chartUrl}}
4-hour chart: {{chart_4h.chartUrl}}
Daily chart: {{chart_1d.chartUrl}}

Do the timeframes align on a clear direction?
What is the highest-confidence trade setup across all three?

Output

The node outputs a single field — the URL of the generated chart image hosted on S3.

Path	Description
{chart.chartUrl}	S3 URL of the generated chart image (PNG or JPG)

Replace chart with your node's edge label. If the edge connecting the Chart Image to the next node is labeled btc_chart, use {btc_chart.chartUrl}.

The chart image includes enhanced labeling for better LLM readability: larger fonts, OHLC values, current price line, price change indicator, and a descriptive auto-generated title with the symbol, interval, and date.

Pricing & Credits

Each chart generation costs credits. The cost is fixed per chart image regardless of dimensions or indicators. Charts are generated via the Chart-img.com API and stored on S3 with a 1-year cache.

Chart images are stored permanently — you can reference the URL in later workflow runs or share it externally.

Next Steps

LLM Node — Feed chart images into vision-capable models for AI analysis.
Price Data Node — Combine numerical price data with visual charts for richer analysis.
Conditional Node — Route decisions based on LLM chart analysis output.
Function Node — Post-process chart analysis results with custom code.