Indicators›Cycle›Dominant Cycle Phase

GET/indicator/ht_dcphase

Hilbert Transform – Dominant Cycle Phase

Category: Cycle · Updated November 2026

The TAAPI.IO Dominant Cycle Phase API returns real-time and historical values for the Hilbert Transform – Dominant Cycle Phase 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/ht_dcphase`
Outputs	`value`
Markets	Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks
Timeframes	`1m` to `1w`
Delivery	REST, bulk and WebSocket

Get Dominant Cycle Phase with one API call

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

curl -G https://v2.taapi.io/indicator/ht_dcphase \
  -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/ht_dcphase',
    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/ht_dcphase?${params}`, {
  headers: { Authorization: 'Bearer YOUR_API_KEY' },
});
console.log(await res.json());

Dominant Cycle Phase API response

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

200 OK

{
  "value": [-6.9209219463404],
  "timestamp": [1794218400]
}

Field	Type	Description
`value`	number[]	Dominant Cycle Phase result
`timestamp`	integer[]	Unix time of each candle, in seconds

Dominant Cycle Phase 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`
`results`	integer	No	1	Number of values to return, or `max`
`backtrack`	integer	No	0	Candles to skip from the most recent

What is Dominant Cycle Phase?

This Hilbert Transform output reports the phase of the dominant cycle in degrees, showing where the market is within its current cycle.

Dominant Cycle Phase formula

Output	Calculation
Phase	Arctangent of the quadrature and in-phase components, in degrees

How to read Dominant Cycle Phase in your code

Signal	Meaning	Condition
Cycle position	Where the current cycle stands	`value` in degrees
Rate of change	A steady advance suggests cycling; a stall suggests trending	Change in `value` between candles

Limitations: Phase is only meaningful when a market is cycling, so check the trend mode first. Nothing on this page is financial advice.

Compare the last two closed Dominant Cycle Phase values

Use backtrack=1 to skip the candle still forming, and results=2 to compare the last two closed candles. Arrays run oldest first.

curl -G https://v2.taapi.io/indicator/ht_dcphase \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "results=2" \
  --data-urlencode "backtrack=1"

import requests

resp = requests.get(
    'https://v2.taapi.io/indicator/ht_dcphase',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    params={'exchange': 'binance', 'symbol': 'BTCUSDT', 'timeframe': '1h', 'results': 2, 'backtrack': 1},
)
data = resp.json()
prev, last = data['value']
print('value', prev, '->', last)
print('rising' if last > prev else 'falling or flat')

Get historical Dominant Cycle Phase 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/ht_dcphase \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "results=100"

Get Dominant Cycle Phase for multiple symbols

Combine Dominant Cycle Phase 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": "ht_dcphase",
          "indicator": "ht_dcphase"
        },
        {
          "id": "rsi",
          "indicator": "rsi"
        }
      ]
    }
  ]
}'

Stream Dominant Cycle Phase 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": "ht_dcphase",
  "exchange": "binance",
  "symbol": "BTCUSDT",
  "interval": "1m",
  "indicator": "ht_dcphase"
}

Dominant Cycle Phase API FAQ

What does the Dominant Cycle Phase API return?

It returns value, plus a timestamp for the request. Results are JSON.

Is the latest Dominant Cycle Phase 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.

Can I get Dominant Cycle Phase 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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