Yes. Since v2 of the API, every indicator value is always returned together with the timestamp of the candle it belongs to. You no longer need the addResultTimestamp parameter.
curl "https://v2.taapi.io/indicator/rsi?exchange=binance&symbol=BTCUSDT&timeframe=1h" \
-H "Authorization: Bearer YOUR_API_KEY"
{
"value": [58.62],
"timestamp": [1793653200]
}Timestamps are Unix time in seconds (UTC) and mark the opening time of the candle.
This also works for historical values. When you ask for several values with the results parameter, each value in the value array matches the timestamp at the same position in the timestamp array:
{
"value": [31.10, 26.54, 32.04],
"timestamp": [1793646000, 1793649600, 1793653200]
}