Linear Regression Slope
Category: Statistics · Updated November 2026
The TAAPI.IO Linear Regression Slope API returns real-time and historical values for the Linear Regression Slope 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/linearreg_slope |
| Outputs | value |
| Markets | Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks |
| Timeframes | 1m to 1w |
| Delivery | REST, bulk and WebSocket |
Get Linear Regression Slope with one API call
This request returns Linear Regression Slope for BTCUSDT on 1-hour Binance candles. Add your API key to run it here.
curl -G https://v2.taapi.io/indicator/linearreg_slope \ -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/linearreg_slope',
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/linearreg_slope?${params}`, {
headers: { Authorization: 'Bearer YOUR_API_KEY' },
});
console.log(await res.json());Linear Regression Slope API response
This response came from the live API on 9 November 2026. Long lists are shortened here.
{
"value": [-46.597384615385174],
"timestamp": [1794218400]
}| Field | Type | Description |
|---|---|---|
value | number[] | Linear Regression Slope result |
timestamp | integer[] | Unix time of each candle, in seconds |
Linear Regression Slope 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 |
period | integer | No | 14 | Time Period |
results | integer | No | 1 | Number of values to return, or max |
backtrack | integer | No | 0 | Candles to skip from the most recent |
What is Linear Regression Slope?
The slope is the change per candle of the fitted regression line, a simple numeric measure of trend direction and speed.
Linear Regression Slope formula
| Output | Calculation |
|---|---|
| Slope | m in the best-fit line y = b + m × x |
How to read Linear Regression Slope in your code
| Signal | Meaning | Condition |
|---|---|---|
| Uptrend | Line rising | value > 0 |
| Downtrend | Line falling | value < 0 |
| Trend speed | Steepness | Absolute value |
Limitations: It is in price units per candle. Divide by price to compare symbols. Nothing on this page is financial advice.
Compare the last two closed Linear Regression Slope 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/linearreg_slope \ -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/linearreg_slope',
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 Linear Regression Slope 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/linearreg_slope \ -H "Authorization: Bearer YOUR_API_KEY" \ --data-urlencode "exchange=binance" \ --data-urlencode "symbol=BTCUSDT" \ --data-urlencode "timeframe=1h" \ --data-urlencode "results=100"
Get Linear Regression Slope for multiple symbols
Combine Linear Regression Slope 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.
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": "linearreg_slope",
"indicator": "linearreg_slope"
},
{
"id": "rsi",
"indicator": "rsi"
}
]
}
]
}'Stream Linear Regression Slope 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.
{
"type": "subscribe",
"id": "linearreg_slope",
"exchange": "binance",
"symbol": "BTCUSDT",
"interval": "1m",
"indicator": "linearreg_slope"
}Linear Regression Slope API FAQ
What does the Linear Regression Slope API return?
It returns value, plus a timestamp for the request. Results are JSON.
Is the latest Linear Regression Slope 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 Linear Regression Slope settings can I change?
You can set period. See the parameters table above for defaults.
Can I get Linear Regression Slope 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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