Ease of Movement (EMV)
Category: Momentum · Updated November 2026
The TAAPI.IO EMV API returns real-time and historical values for the Ease of Movement 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/emv |
| Outputs | value |
| Markets | Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks |
| Timeframes | 1m to 1w |
| Delivery | REST, bulk and WebSocket |
Get EMV with one API call
This request returns EMV for BTCUSDT on 1-hour Binance candles. Add your API key to run it here.
curl -G https://v2.taapi.io/indicator/emv \ -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/emv',
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/emv?${params}`, {
headers: { Authorization: 'Bearer YOUR_API_KEY' },
});
console.log(await res.json());EMV API response
This response came from the live API on 9 November 2026. Long lists are shortened here.
{
"value": [-1389611.3101572841],
"timestamp": [1794218400]
}| Field | Type | Description |
|---|---|---|
value | number[] | EMV result |
timestamp | integer[] | Unix time of each candle, in seconds |
EMV 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 EMV?
Ease of Movement, developed by Richard Arms, relates price change to volume. High values indicate price moved a long way on little volume. This endpoint takes no period and returns the raw one-candle reading; use eom for the smoothed version.
EMV formula
| Output | Calculation |
|---|---|
| Distance | (high + low) ÷ 2 − previous (high + low) ÷ 2 |
| Box ratio | Volume ÷ (high − low) |
| EMV | Distance ÷ box ratio |
How to read EMV in your code
| Signal | Meaning | Condition |
|---|---|---|
| Rising easily | Price climbing on light volume | value > 0 |
| Falling easily | Price dropping on light volume | value < 0 |
Limitations: Raw one-candle values are very noisy. Scale also depends on the symbol's volume. Nothing on this page is financial advice.
Compare the last two closed EMV 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/emv \ -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/emv',
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 EMV 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/emv \ -H "Authorization: Bearer YOUR_API_KEY" \ --data-urlencode "exchange=binance" \ --data-urlencode "symbol=BTCUSDT" \ --data-urlencode "timeframe=1h" \ --data-urlencode "results=100"
Get EMV for multiple symbols
Combine EMV 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": "emv",
"indicator": "emv"
},
{
"id": "rsi",
"indicator": "rsi"
}
]
}
]
}'Stream EMV 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": "emv",
"exchange": "binance",
"symbol": "BTCUSDT",
"interval": "1m",
"indicator": "emv"
}EMV API FAQ
What does the EMV API return?
It returns value, plus a timestamp for the request. Results are JSON.
Is the latest EMV 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 EMV for US stocks?
Yes. Use exchange=stocks with a ticker such as AAPL. US stocks are included on the Pro plan and above.
Related indicators
See the full list of indicators, or start for free.