Technical Indicators
Hilbert Transform Trendline (HT_TRENDLINE)
John Ehlers' Hilbert Transform Trendline — adaptive moving average centered over the detected dominant cycle period. Smoother than fixed-window MAs in trending markets, faster to track turning points than constant-period EMAs. time_period is required by API contract but ignored — algorithm uses self-detected cycle period.
get/api/v1/indicators/ht_trendline
Query parameters
symbolstring required
Example:AAPL
time_periodstring
Required by API contract; HT_TRENDLINE is self-adaptive and ignores this value.
Example:1
Required by API contract; HT_TRENDLINE is self-adaptive and ignores this value.
intervalstring
Example:1d
rangestring nullable
Example:1y
outputsizeinteger
Example:30
Response
Successful Response
Example response
{
"data": {
"symbol": "AAPL",
"indicator": "sma",
"interval": "1d",
"outputsize": 30,
"time_period": [
14
],
"source": "sugra_finance"
},
"meta": {
"endpoint": "/api/v1/fred/us/cpi",
"data_time": "2026-04-16T14:30:00Z",
"response_time": "2026-04-16T14:30:12Z",
"provider": "Sugra API v1.0.1",
"source": "sugra_crypto",
"attribution": "Short interest and Reg SHO daily short volume data is owned by and sourced from FINRA (Financial Industry Regulatory Authority).",
"fallback_chain": [
"sugra_crypto",
"sugra_finance"
]
}
}