GET/indicator/tdsequential

TD Sequential

Category: Momentum · Updated November 2026

The TAAPI.IO TD Sequential API returns buy setup index, sell setup index, buy coundown index, sell coundown index values for the TD Sequential 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/tdsequential`
Outputs	`buySetupIndex`, `sellSetupIndex`, `buyCoundownIndex`, `sellCoundownIndex`, `countdownIndexIsEqualToPreviousElement`, `sellSetup` and more
Markets	Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks
Timeframes	`1m` to `1w`
Delivery	REST, bulk and WebSocket

Get TD Sequential with one API call

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

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

TD Sequential API response

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

200 OK

{
  "buySetupIndex": [7],
  "sellSetupIndex": [null],
  "buyCoundownIndex": [4],
  "sellCoundownIndex": [null],
  "countdownIndexIsEqualToPreviousElement": [true],
  "sellSetup": [false],
  "buySetup": [false],
  "sellSetupPerfection": [false],
  "buySetupPerfection": [false],
  "bearishFlip": [false],
  "bullishFlip": [false],
  "TDSTBuy": [76095.32],
  "TDSTSell": [75655.76],
  "countdownResetForTDST": [false],
  "timestamp": [1794218400]
}

This response can be null or empty when there is nothing to report for the requested candles, so handle that case in your code.

Field	Type	Description
`buySetupIndex`	number[]	Buy setup index
`sellSetupIndex`	array	Sell setup index
`buyCoundownIndex`	number[]	Buy coundown index
`sellCoundownIndex`	array	Sell coundown index
`countdownIndexIsEqualToPreviousElement`	boolean[]	Countdown index is equal to previous element
`sellSetup`	boolean[]	Sell setup
`buySetup`	boolean[]	Buy setup
`sellSetupPerfection`	boolean[]	Sell setup perfection
`buySetupPerfection`	boolean[]	Buy setup perfection
`bearishFlip`	boolean[]	Bearish flip
`bullishFlip`	boolean[]	Bullish flip
`TDSTBuy`	number[]	Tdstbuy
`TDSTSell`	number[]	Tdstsell
`countdownResetForTDST`	boolean[]	Countdown reset for tdst
`timestamp`	integer[]	Unix time of each candle, in seconds

TD Sequential 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 TD Sequential?

TD Sequential, created by Tom DeMark, counts candles to identify potential trend exhaustion. A setup counts nine consecutive closes compared with the close four candles earlier, and a countdown follows to 13.

TD Sequential formula

Output	Calculation
Buy setup	9 consecutive closes below the close 4 candles earlier
Sell setup	9 consecutive closes above the close 4 candles earlier
Countdown	Counts to 13 after a completed setup, using the close against the high or low 2 candles earlier

How to read TD Sequential in your code

Signal	Meaning	Condition
Buy setup progress	Downtrend count	`buySetupIndex` counting toward 9
Sell setup progress	Uptrend count	`sellSetupIndex` counting toward 9
Perfected setup	Stronger completed setup	`buySetupPerfection` or `sellSetupPerfection` is set
Flip	Possible start of a new setup	`bullishFlip` or `bearishFlip` is set

Limitations: A completed nine marks possible exhaustion, not a reversal. Trends often continue, which is why the setup is followed by a countdown. Nothing on this page is financial advice.

Compare the last two closed TD Sequential 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/tdsequential \
  -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/tdsequential',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    params={'exchange': 'binance', 'symbol': 'BTCUSDT', 'timeframe': '1h', 'results': 2, 'backtrack': 1},
)
data = resp.json()
prev, last = data['buySetupIndex']
print('buySetupIndex', prev, '->', last)
print('rising' if last > prev else 'falling or flat')

Get historical TD Sequential 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/tdsequential \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "results=100"

Get TD Sequential for multiple symbols

Combine TD Sequential 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": "tdsequential",
          "indicator": "tdsequential"
        },
        {
          "id": "rsi",
          "indicator": "rsi"
        }
      ]
    }
  ]
}'

Stream TD Sequential 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": "tdsequential",
  "exchange": "binance",
  "symbol": "BTCUSDT",
  "interval": "1m",
  "indicator": "tdsequential"
}

TD Sequential API FAQ

What does the TD Sequential API return?

It returns buySetupIndex, sellSetupIndex, buyCoundownIndex, sellCoundownIndex, countdownIndexIsEqualToPreviousElement, sellSetup, buySetup, sellSetupPerfection, buySetupPerfection, bearishFlip, bullishFlip, TDSTBuy, TDSTSell, countdownResetForTDST, plus a timestamp for the request. Results are JSON.

Is the latest TD Sequential 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 TD Sequential 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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