Indicators›Chart patterns›Descending Triangle

GET/indicator/triangledescending

Descending Triangle

Category: Chart patterns · Updated November 2026

The TAAPI.IO Descending Triangle API returns pattern pivot timestamps, pattern pivot prices, support level, support right timestamp values for the Descending Triangle indicator as JSON, for crypto pairs and US stocks. Send an exchange, symbol and timeframe to get real-time or historical data, with no candles to download and no calculations to maintain.

Spec	Value
Endpoint	`GET https://v2.taapi.io/indicator/triangledescending`
Outputs	`pattern_pivot_timestamps`, `pattern_pivot_prices`, `support_level`, `support_right_timestamp`, `resistance_left_timestamp`, `resistance_left_price` and more
Markets	Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks
Timeframes	`1m` to `1w`
Delivery	REST, bulk and WebSocket

Get Descending Triangle with one API call

This request returns Descending Triangle for BTCUSDT on 1-hour Binance candles. Add your API key to run it here.

curl -G https://v2.taapi.io/indicator/triangledescending \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h"

import requests

resp = requests.get(
    'https://v2.taapi.io/indicator/triangledescending',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    params={'exchange': 'binance', 'symbol': 'BTCUSDT', 'timeframe': '1h'},
)
print(resp.json())

const params = new URLSearchParams({"exchange": "binance", "symbol": "BTCUSDT", "timeframe": "1h"});
const res = await fetch(`https://v2.taapi.io/indicator/triangledescending?${params}`, {
  headers: { Authorization: 'Bearer YOUR_API_KEY' },
});
console.log(await res.json());

Descending Triangle API response

This response came from the live API on 9 November 2026. Long lists are shortened here.

200 OK

{
  "pattern_pivot_timestamps": [[1793761200, 1793804400, 1793919600, 1793966400]],
  "pattern_pivot_prices": [[75736.38, 81196.01, 75208.42, 76378]],
  "support_level": [75718.02],
  "support_right_timestamp": [1793977200],
  "resistance_left_timestamp": [1793804400],
  "resistance_left_price": [81196.01],
  "resistance_right_timestamp": [1793977200],
  "resistance_right_price": [76056.79933333333],
  "breakout_occurred": [true],
  "is_confirmed": [true],
  "breakout_timestamp": [1793977200],
  "breakout_price": [75546.44],
  "breakout_support_price": [75718.02],
  "projection_price": [71140.03000000001],
  "direction": ["bearish"],
  "status": ["confirmed"],
  "status_reason": ["breakout_below_support"],
  "pattern_index": [3],
  "timestamp": [1794218400]
}

Field	Type	Description
`pattern_pivot_timestamps`	array	Array of all internal pivot timestamps making up the triangle structure.
`pattern_pivot_prices`	array	Array of all internal pivot body-snapped prices making up the triangle structure.
`support_level`	number[]	The price level of the horizontal flat bottom support.
`support_right_timestamp`	number[]	Timestamp denoting where the support line extends to on the right.
`resistance_left_timestamp`	number[]	Unix timestamp of the descending resistance line start anchor (H1).
`resistance_left_price`	number[]	Price level of the descending resistance line start anchor (H1).
`resistance_right_timestamp`	number[]	Timestamp denoting where the resistance line extends to on the right.
`resistance_right_price`	number[]	The price level of the resistance line at the right endpoint.
`breakout_occurred`	boolean[]	Boolean flag (true/false) indicating if price successfully broke below the support.
`is_confirmed`	boolean[]	Explicit boolean flag (true/false) indicating if the Descending Triangle pattern is fully confirmed (synonymous with breakout_occurred).
`breakout_timestamp`	number[]	Unix timestamp of the candle that triggered the confirmation breakout.
`breakout_price`	number[]	The closing price of the candle that triggered the confirmation breakout.
`breakout_support_price`	number[]	The specific price of the support line at the exact moment of the breakout (same as support_level).
`projection_price`	number[]	The theoretical downside price target calculated by subtracting the pattern's initial height from the breakout support price.
`direction`	string[]	The inherent bias of the pattern. Always 'bearish' for a Descending Triangle.
`status`	string[]	The current state of the pattern: 'forming', 'confirmed', or 'invalidated'.
`status_reason`	string[]	Context detailing why the pattern holds its current status (e.g. 'awaiting_breakout').
`pattern_index`	number[]	A sequential integer index uniquely identifying this specific pattern instance.
`timestamp`	integer[]	Unix time of each candle, in seconds

Descending Triangle API parameters

Name	Type	Required	Default	Description
`exchange`	string	Yes	—	`binance`, `binancefutures`, `bybit`, `gateio`, `kraken` or `stocks`
`symbol`	string	Yes	—	Pair or ticker, e.g. `BTCUSDT` or `AAPL`
`timeframe`	string	Yes	—	`1m` `5m` `15m` `1h` `4h` `1d` `1w`
`lookback`	integer	No	5	Bars left for pivot detection.
`lookforward`	integer	No	5	Bars right for pivot detection.
`deviationATR`	number	No	1	Minimum retracement required to form a valid structural swing, expressed as a multiple of ATR.
`deviationType`	string	No	atr	Type of deviation filter to use: 'atr' (Average True Range) or 'percent'.
`source`	string	No	wick	Whether to use 'wick' (high/low) or 'body' (open/close) prices for pivot detection.
`heikinashi`	boolean	No	True	Set to true to calculate pivots based on smoothed Heikin-Ashi candles rather than raw market prices.
`atrPeriod`	integer	No	14	The lookback period used for the Average True Range (ATR) calculation.
`touches`	integer	No	2	Minimum number of high/low pairs required to form the pattern.
`bottomToleranceATR`	number	No	0.75	Maximum allowed price difference between the bottom support touches, normalized by ATR.
`minDescentATR`	number	No	0	Minimum required downward slope between the descending top touches, normalized by ATR.
`invalidationCloses`	integer	No	2	Number of consecutive candle closes above the descending resistance line to invalidate the pattern.
`results`	integer	No	1	Number of values to return, or `max`
`backtrack`	integer	No	0	Candles to skip from the most recent

What is Descending Triangle?

A Descending Triangle has flat support and falling resistance, which suggests sellers are growing more aggressive. The endpoint returns its pivots, both boundaries and a projected target.

Descending Triangle formula

Output	Calculation
Target	Support − height of the triangle

How to read Descending Triangle in your code

Signal	Meaning	Condition
Forming or confirmed	Detection status	`status` and `is_confirmed`
Breakout	Price closed below support	`breakout_occurred` is true
Target	Measured-move projection	`projection_price`

Limitations: Geometric pattern detection depends on pivot settings, so tune deviationATR and depth or lookback values on your own market. A confirmed pattern is not a guaranteed move. Nothing on this page is financial advice.

Read Descending Triangle from Python

Use backtrack=1 to read the result as of the last closed candle.

curl -G https://v2.taapi.io/indicator/triangledescending \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "backtrack=1"

import requests

resp = requests.get(
    'https://v2.taapi.io/indicator/triangledescending',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    params={'exchange': 'binance', 'symbol': 'BTCUSDT', 'timeframe': '1h', 'backtrack': 1},
)
data = resp.json()
print(data['pattern_pivot_timestamps'])

Get historical Descending Triangle values

Add results to return a series for backtesting or charting. The last element is the most recent candle.

curl -G https://v2.taapi.io/indicator/triangledescending \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "results=100"

Get Descending Triangle for multiple symbols

Combine Descending Triangle with other indicators in one request. Each exchange, symbol and timeframe combination is one construct: Basic allows 1 per request, Pro 3 and Expert 10.

POST/bulk

curl -X POST https://v2.taapi.io/bulk \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "constructs": [
    {
      "id": "btc_1h",
      "exchange": "binance",
      "symbol": "BTCUSDT",
      "timeframe": "1h",
      "indicators": [
        {
          "id": "triangledescending",
          "indicator": "triangledescending"
        },
        {
          "id": "rsi",
          "indicator": "rsi"
        }
      ]
    }
  ]
}'

Stream Descending Triangle in real time

Subscribe over WebSocket to receive new values every 5 seconds while the candle is forming. Streaming supports 1m, 5m, 15m and 1h, and uses interval where REST uses timeframe.

WSSwss://v2.taapi.io/streaming

{
  "type": "subscribe",
  "id": "triangledescending",
  "exchange": "binance",
  "symbol": "BTCUSDT",
  "interval": "1m",
  "indicator": "triangledescending"
}

Descending Triangle API FAQ

What does the Descending Triangle API return?

It returns pattern_pivot_timestamps, pattern_pivot_prices, support_level, support_right_timestamp, resistance_left_timestamp, resistance_left_price, resistance_right_timestamp, resistance_right_price, breakout_occurred, is_confirmed, breakout_timestamp, breakout_price, breakout_support_price, projection_price, direction, status, status_reason, pattern_index, plus a timestamp for the request. Results are JSON.

Is the latest Descending Triangle value final?

No. The newest value belongs to the candle still forming and can change until it closes. Add backtrack=1 to read the last closed candle.

Which Descending Triangle settings can I change?

You can set lookback, lookforward, deviationATR, deviationType, source, heikinashi. See the parameters table above for defaults.

Can I get Descending Triangle for US stocks?

Yes. Use exchange=stocks with a ticker such as AAPL. US stocks are included on the Pro plan and above.

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