ADX API — Trend Strength Filter via REST
ADX above 25 = strong trend. Below 20 = ranging. Query the value with a single GET and filter your strategy entries before placing trades.
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What is the ADX API?
The Average Directional Index measures trend strength on a 0–100 scale, without indicating direction. Readings below 20 signal a ranging market — avoid trend-following strategies. Above 25, a trend is established. The companion +DI and -DI lines tell you which direction: +DI above -DI means bulls are in control. TickAtlas pre-calculates all three (ADX, ADX_plusDI, ADX_minusDI) from live broker data, so your strategy gets a ready-made trend filter with a single API call per value.
One Request. Instant Data.
curl -X GET \
"https://tickatlas.com/v1/indicator?symbol=EURUSD&indicator=ADX_14&timeframe=H1" \
-H "X-API-Key: YOUR_API_KEY"Why Use TickAtlas?
Pre-Calculated, Sub-100ms
Indicator values are computed server-side on every new candle. Your app queries the result — no TA library, no candle history needed.
7 Timeframes
M1, M5, M15, M30, H1, H4, D1 — the same endpoint serves scalpers and position traders alike.
Forex, Crypto, Commodities
EURUSD, GBPUSD, XAUUSD, BTCUSD, USDJPY — data available for all symbols active on connected broker terminals.
Plug into any stack
- ChatGPT Custom GPTs
- Claude Tools
- Python / pandas
- Node.js
- Discord bots
- Slack webhooks
- n8n
- Zapier
- Google Sheets
Three Values. One Trend Filter.
Available ADX indicators
- ADX — Trend strength (0–100, directionless)
- ADX_plusDI — Positive directional indicator (+DI)
- ADX_minusDI — Negative directional indicator (-DI)
ADX reading guide:
0–20 — weak / ranging
20–25 — trend forming
25–50 — strong trend
50+ — very strong trend
Frequently Asked Questions
What period does the ADX use?
The standard 14-period ADX (Wilder's smoothing), matching industry-standard defaults. The same calculation is used for both ADX and the +DI/-DI directional indicators.
What ADX value indicates a strong enough trend to trade?
The widely used threshold is 25. Below 20 is generally considered a ranging market unsuitable for trend strategies. Above 40–50 may indicate an exhausted trend. The API includes a signal field that classifies readings into weak_trend, moderate_trend, and strong_trend.
Can I combine ADX with other TickAtlas indicators?
Yes — all 42 indicators share the same endpoint format. A common combination is ADX as the trend filter with MACD crossover as the entry signal: only take MACD signals when ADX is above 25.
Does ADX work on crypto symbols like BTCUSD?
Yes — ADX is available for all symbols on connected broker terminals, including BTCUSD, XAUUSD, and 50+ Forex pairs. Use GET /v1/symbols to see the current list of supported symbols.
Start Building in 5 Minutes
Sign up, grab your API key, make your first request.
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