TRIANGLEDESCENDING (triangledescending)

Descending Triangle is a bearish continuation pattern with a flat lower support line and a declining upper resistance line, typically resolving with a downside breakdown.

Common parameters

All indicator requests share these parameters. See Single Indicator for details.

Name	Type	Required	Default	Description
`exchange`	string	Yes	—	Exchange identifier, e.g. `binance`, `bybit`.
`symbol`	string	Yes	—	Trading pair, e.g. `BTCUSDT`.
`timeframe`	string	Yes	—	Candle interval: `1m`, `5m`, `15m`, `1h`, `4h`, `1d`, `1w`.
`results`	integer	No	1	Number of historical values. Use `max` for all available.
`backtrack`	integer	No	0	Candles to skip from most recent.

Indicator parameters

Name	Type	Required	Default	Description
`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.

Example

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 "lookback=5" \
  --data-urlencode "lookforward=5" \
  --data-urlencode "deviationATR=1" \
  --data-urlencode "deviationType=atr" \
  --data-urlencode "source=wick" \
  --data-urlencode "heikinashi=True" \
  --data-urlencode "atrPeriod=14" \
  --data-urlencode "touches=2" \
  --data-urlencode "bottomToleranceATR=0.75" \
  --data-urlencode "minDescentATR=0" \
  --data-urlencode "invalidationCloses=2"

const res = await fetch(
  'https://v2.taapi.io/indicator/triangledescending?exchange=binance&symbol=BTCUSDT&timeframe=1h',
  { headers: { Authorization: 'Bearer YOUR_API_KEY' } }
);
const data = await res.json();

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())

Response

Results are always wrapped in arrays, even when only one value is returned.

200 OK

{
  "pattern_pivot_timestamps": [1708300800],
  "pattern_pivot_prices": [0.0],
  "support_level": [0.0],
  "support_right_timestamp": [1708300800],
  "resistance_left_timestamp": [1708300800],
  "resistance_left_price": [0.0],
  "resistance_right_timestamp": [1708300800],
  "resistance_right_price": [0.0],
  "breakout_occurred": [0.0],
  "is_confirmed": [0.0],
  "breakout_timestamp": [1708300800],
  "breakout_price": [0.0],
  "breakout_support_price": [0.0],
  "projection_price": [0.0],
  "direction": [0.0],
  "status": [0.0],
  "status_reason": [0.0],
  "pattern_index": [0.0],
  "timestamp": [1708300800]
}

Errors

Response

{
  "pattern_pivot_timestamps": [1708300800],
  "pattern_pivot_prices": [0.0],
  "support_level": [0.0],
  "support_right_timestamp": [1708300800],
  "resistance_left_timestamp": [1708300800],
  "resistance_left_price": [0.0],
  "resistance_right_timestamp": [1708300800],
  "resistance_right_price": [0.0],
  "breakout_occurred": [0.0],
  "is_confirmed": [0.0],
  "breakout_timestamp": [1708300800],
  "breakout_price": [0.0],
  "breakout_support_price": [0.0],
  "projection_price": [0.0],
  "direction": [0.0],
  "status": [0.0],
  "status_reason": [0.0],
  "pattern_index": [0.0],
  "timestamp": [1708300800]
}

Data is being fetched. Retry after 1–2 seconds.

Response

{ "pending": true, "key": "ta:binance:BTCUSDT:1h:triangledescending:..." }

Response

{ "error": "Missing required: exchange, symbol, timeframe" }

Response

{ "error": "Invalid or missing API key." }

Response

{ "error": "Rate limit exceeded. Your plan allows 30 requests per 15 seconds." }

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