GET/indicator/pvi

Positive Volume Index (PVI)

Category: Volume · Updated November 2026

The TAAPI.IO PVI API returns real-time and historical values for the Positive Volume 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/pvi`
Outputs	`value`
Markets	Binance, Binance Futures, Bybit, Gate.io, Kraken and US stocks
Timeframes	`1m` to `1w`
Delivery	REST, bulk and WebSocket

Get PVI with one API call

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

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

PVI API response

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

200 OK

{
  "value": [1019.6459464255169],
  "timestamp": [1794218400]
}

Field	Type	Description
`value`	number[]	PVI result
`timestamp`	integer[]	Unix time of each candle, in seconds

PVI 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 PVI?

The Positive Volume Index changes only on candles where volume rises, tracking what happens when the crowd is active.

PVI formula

Output	Calculation
PVI	If volume rises: previous PVI × (1 + % price change). Otherwise unchanged.

How to read PVI in your code

Signal	Meaning	Condition
Rising	Gains on busy candles	`value` rising
Trend filter	Compare with its long-term average	`value` above or below a moving average of its series

Limitations: It is cumulative, so its level depends on where the data starts. Nothing on this page is financial advice.

Compare the last two closed PVI 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/pvi \
  -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/pvi',
    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 PVI 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/pvi \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --data-urlencode "exchange=binance" \
  --data-urlencode "symbol=BTCUSDT" \
  --data-urlencode "timeframe=1h" \
  --data-urlencode "results=100"

Get PVI for multiple symbols

Combine PVI 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": "pvi",
          "indicator": "pvi"
        },
        {
          "id": "rsi",
          "indicator": "rsi"
        }
      ]
    }
  ]
}'

Stream PVI 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": "pvi",
  "exchange": "binance",
  "symbol": "BTCUSDT",
  "interval": "1m",
  "indicator": "pvi"
}

PVI API FAQ

What does the PVI API return?

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

Is the latest PVI 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 PVI 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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