Intraday Momentum Index (IMI)
Category: Momentum · Updated November 2026
The TAAPI.IO IMI API returns real-time and historical values for the Intraday Momentum Index 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/imi |
| Outputs | value |
| Markets | Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks |
| Timeframes | 1m to 1w |
| Delivery | REST, bulk and WebSocket |
Get IMI with one API call
This request returns IMI for BTCUSDT on 1-hour Binance candles. Add your API key to run it here.
curl -G https://v2.taapi.io/indicator/imi \ -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/imi',
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/imi?${params}`, {
headers: { Authorization: 'Bearer YOUR_API_KEY' },
});
console.log(await res.json());IMI API response
This response came from the live API on 9 November 2026. Long lists are shortened here.
{
"value": [35.22117532284124],
"timestamp": [1794218400]
}| Field | Type | Description |
|---|---|---|
value | number[] | IMI result |
timestamp | integer[] | Unix time of each candle, in seconds |
IMI 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 IMI?
The Intraday Momentum Index, from Tushar Chande, works like RSI but compares each candle's close with its own open. That focuses it on what happens inside each candle rather than between candles.
IMI formula
| Output | Calculation |
|---|---|
| IMI | 100 × sum of gains ÷ (sum of gains + sum of losses), where gain = close − open on up candles and loss = open − close on down candles |
How to read IMI in your code
| Signal | Meaning | Condition |
|---|---|---|
| Overbought | Candles closing well above opens | value above 70 |
| Oversold | Candles closing well below opens | value below 30 |
Limitations: It ignores gaps between candles, which matters on stocks that open away from the prior close. Nothing on this page is financial advice.
Compare the last two closed IMI 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/imi \ -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/imi',
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 IMI 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/imi \ -H "Authorization: Bearer YOUR_API_KEY" \ --data-urlencode "exchange=binance" \ --data-urlencode "symbol=BTCUSDT" \ --data-urlencode "timeframe=1h" \ --data-urlencode "results=100"
Get IMI for multiple symbols
Combine IMI 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": "imi",
"indicator": "imi"
},
{
"id": "rsi",
"indicator": "rsi"
}
]
}
]
}'Stream IMI 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": "imi",
"exchange": "binance",
"symbol": "BTCUSDT",
"interval": "1m",
"indicator": "imi"
}IMI API FAQ
What does the IMI API return?
It returns value, plus a timestamp for the request. Results are JSON.
Is the latest IMI 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 IMI settings can I change?
You can set period. See the parameters table above for defaults.
Can I get IMI 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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