Relative Strength Index (RSI)
The relative strength index (RSI) is a momentum indicator that measures the magnitude of recent price changes to evaluate overbought or oversold conditions in the price of a stock or other asset. The RSI is displayed as an oscillator (a line graph that moves between two extremes) and can have a reading from 0 to 100.
Get started with the rsi
Simply make an HTTPS [GET] request or call in your browser:
[GET] https://api.taapi.io/rsi?secret=MY_SECRET&exchange=binance&symbol=BTC/USDT&interval=1h
The rsi endpoint returns a JSON response like this:
{
"value": 65.73211579249397
}
Example response from TAAPI.IO when querying rsi endpoint.
API parameters
binance, binancefutures or one of our supported exchanges. For other crypto / stock exchanges, please refer to our Client or Manual integration methods.
BTC/USDT Bitcoin to Tether, or LTC/BTC Litecoin to Bitcoin...
1m, 5m, 15m, 30m, 1h, 2h, 4h, 12h, 1d, 1w. So if you're interested in values on hourly candles, use interval=1h, for daily values use interval=1d, etc.
backtrack parameter removes candles from the data set and calculates the rsi value X amount of candles back. So, if you’re fetching the rsi on the hourly and you want to know what the rsi was 5 hours ago, set backtrack=5. The default is 0 and a maximum is 50.
backtracks parameter returns the rsi value calculated on every candle for the past X candles. For example, if you want to know what the rsi was every hour for the past 12 hours, you use backtracks=12. As a result, you will get 12 values back.
chart parameter accepts one of two values: candles or heikinashi. candles is the default, but if you set this to heikinashi, the indicator values will be calculated using Heikin Ashi candles. Note: Pro & Expert Plans only.
true or false. Defaults to false. By setting to true the API will return a timestamp with every result (real-time and backtracked) to which candle the value corresponds. This is helpful when requesting multiple backtracks.
Adjust the RSI length – the number of candles used to calculate the RSI.
Default: 14
More examples
Let's say you want to know the rsi value on the last closed candle on the 30m timeframe. You are not interest in the real-time value, so you use the backtrack=1 optional parameter to go back 1 candle in history to the last closed candle.
[GET] https://api.taapi.io/rsi?secret=MY_SECRET&exchange=binance&symbol=BTC/USDT&interval=30m&backtrack=1
Get rsi values on each of the past X candles in one call
Let's say you want to know what the rsi daily value was each day for the previous 10 days. You can get this returned by our API easily and efficiently in one call using the backtracks=10 parameter:
[GET] https://api.taapi.io/rsi?secret=MY_SECRET&exchange=binance&symbol=BTC/USDT&interval=1d&backtracks=10
Here's the example response:
[
{
"value": 70.03713323772295,
"backtrack": 0
},
{
"value": 68.55107952179476,
"backtrack": 1
},
{
"value": 72.55100476679559,
"backtrack": 2
},
{
"value": 73.51409814264913,
"backtrack": 3
},
{
"value": 69.91451308499144,
"backtrack": 4
},
{
"value": 65.17308969691057,
"backtrack": 5
},
{
"value": 66.17910755701931,
"backtrack": 6
},
{
"value": 68.41845715627683,
"backtrack": 7
},
{
"value": 64.71596338703083,
"backtrack": 8
},
{
"value": 70.76586249275925,
"backtrack": 9
}
]
Looking for even more integration examples in different languages like NodeJS, PHP, Python, Curl or Ruby? Continue to [GET] REST - Direct documentation.