Indicators›Support, resistance & structure›Resistance Line

GET/indicator/resistanceline

Resistance Line

Category: Support, resistance & structure · Updated November 2026

The TAAPI.IO Resistance Line API returns resistance line price, highs values for the Resistance Line 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/resistanceline`
Outputs	`resistanceLinePrice`, `highs`
Markets	Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks
Timeframes	`1m` to `1w`
Delivery	REST, bulk and WebSocket

Get Resistance Line with one API call

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

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

Resistance Line API response

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

200 OK

{
  "resistanceLinePrice": 82945.77734693878,
  "highs": [{"timestamp": 1792652400, "high": 82491.56}],
  "timestamp": [1794218400]
}

Field	Type	Description
`resistanceLinePrice`	number	Resistance line price
`highs`	object[]	Highs
`timestamp`	integer[]	Unix time of each candle, in seconds

Resistance Line 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 Resistance Line?

This endpoint returns one resistance line price along with the highs that define it, which is convenient for alerts and simple breakout rules. Always compare it with the current price, since the line can already have been broken.

Resistance Line formula

Output	Calculation
Resistance	Current upper level from recent price structure

How to read Resistance Line in your code

Signal	Meaning	Condition
Level	Current resistance	`resistanceLinePrice`
Touch points	Highs that define the line	`highs`
Breakout	Level exceeded	Close above `resistanceLinePrice`

Limitations: A single level simplifies a market that usually has several. Use supportresistance for a list. Nothing on this page is financial advice.

Read Resistance Line from Python

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

curl -G https://v2.taapi.io/indicator/resistanceline \
  -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/resistanceline',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    params={'exchange': 'binance', 'symbol': 'BTCUSDT', 'timeframe': '1h', 'backtrack': 1},
)
data = resp.json()
print(data['resistanceLinePrice'])

Get historical Resistance Line 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/resistanceline \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "results=100"

Get Resistance Line for multiple symbols

Combine Resistance Line 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": "resistanceline",
          "indicator": "resistanceline"
        },
        {
          "id": "rsi",
          "indicator": "rsi"
        }
      ]
    }
  ]
}'

Stream Resistance Line 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": "resistanceline",
  "exchange": "binance",
  "symbol": "BTCUSDT",
  "interval": "1m",
  "indicator": "resistanceline"
}

Resistance Line API FAQ

What does the Resistance Line API return?

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

Is the latest Resistance Line 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 Resistance Line 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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