Indicators›Trend›Williams Alligator

GET/indicator/williamsalligator

Williams Alligator

Category: Trend · Updated November 2026

The TAAPI.IO Williams Alligator API returns jaws, teeth, lips values for the Williams Alligator 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/williamsalligator`
Outputs	`valueJaws`, `valueTeeth`, `valueLips`
Markets	Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks
Timeframes	`1m` to `1w`
Delivery	REST, bulk and WebSocket

Get Williams Alligator with one API call

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

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

Williams Alligator API response

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

200 OK

{
  "valueJaws": [75535.12730142185],
  "valueTeeth": [75202.66407260147],
  "valueLips": [74730.69085666758],
  "timestamp": [1794218400]
}

Field	Type	Description
`valueJaws`	number[]	Jaws
`valueTeeth`	number[]	Teeth
`valueLips`	number[]	Lips
`timestamp`	integer[]	Unix time of each candle, in seconds

Williams Alligator 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`
`jawsLength`	integer	No	13	Jaws length
`teethLength`	integer	No	8	Teeth length
`lipsLength`	integer	No	5	Lips length
`jawsOffset`	integer	No	8	Jaws offset
`teethOffset`	integer	No	5	Teeth offset
`lipsOffset`	integer	No	3	Lips offset
`results`	integer	No	1	Number of values to return, or `max`
`backtrack`	integer	No	0	Candles to skip from the most recent

What is Williams Alligator?

The Williams Alligator, from Bill Williams, uses three smoothed moving averages with forward offsets called the jaws, teeth and lips. When the lines are intertwined the market is asleep; when they fan out a trend is under way.

Williams Alligator formula

Output	Calculation
Jaws	SMMA(median price, 13), shifted forward 8
Teeth	SMMA(median price, 8), shifted forward 5
Lips	SMMA(median price, 5), shifted forward 3

How to read Williams Alligator in your code

Signal	Meaning	Condition
Uptrend	Lines fanned out upwards	`valueLips` > `valueTeeth` > `valueJaws`
Downtrend	Lines fanned out downwards	`valueLips` < `valueTeeth` < `valueJaws`
Sleeping	No trend	Lines close together and intertwined

Limitations: The smoothing and offset make it slow in fast reversals. Nothing on this page is financial advice.

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

Get historical Williams Alligator 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/williamsalligator \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "results=100"

Get Williams Alligator for multiple symbols

Combine Williams Alligator 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": "williamsalligator",
          "indicator": "williamsalligator"
        },
        {
          "id": "rsi",
          "indicator": "rsi"
        }
      ]
    }
  ]
}'

Stream Williams Alligator 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": "williamsalligator",
  "exchange": "binance",
  "symbol": "BTCUSDT",
  "interval": "1m",
  "indicator": "williamsalligator"
}

Williams Alligator API FAQ

What does the Williams Alligator API return?

It returns valueJaws, valueTeeth, valueLips, plus a timestamp for the request. Results are JSON.

Is the latest Williams Alligator 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 Williams Alligator settings can I change?

You can set jawsLength, teethLength, lipsLength, jawsOffset, teethOffset, lipsOffset. See the parameters table above for defaults.

Can I get Williams Alligator for US stocks?

Yes. Use exchange=stocks with a ticker such as AAPL. US stocks are included on the Pro plan and above.

See the full list of indicators, or start for free.