Yes! You can use bulk queries with your own candles. Attached please find an example.
POST it to https://api.taapi.io/bulk
{ "secret": "{{ secret }}", "construct": { "exchange": "binance", "symbol": "BTC/USDT", "interval": "1h", "indicators": [ { "indicator": "ema", "backtrack": 1 }, { "indicator": "rsi" } ] }, "candles": [ { "timestamp": 1581325200000, "open": 755, "close": 794.74, "high": 797, "low": 754.98, "volume": 50103 }, { "timestamp": 1581328800000, "open": 793.21, "close": 786.5, "high": 793.21, "low": 784, "volume": 22642 }, { "timestamp": 1581332400000, "open": 787.6, "close": 807, "high": 818.79, "low": 786, "volume": 89657 }, { "timestamp": 1581336000000, "open": 807.1, "close": 802.29, "high": 818, "low": 793.31, "volume": 326081 }, { "timestamp": 1581339600000, "open": 800.08, "close": 799.01, "high": 817, "low": 788.5, "volume": 461194 }, { "timestamp": 1581343200000, "open": 801.4, "close": 794.33, "high": 819.99, "low": 783.62, "volume": 5882438 }, { "timestamp": 1581346800000, "open": 795, "close": 763.79, "high": 798, "low": 757.3, "volume": 4319133 }, { "timestamp": 1581350400000, "open": 763.515, "close": 768.7096, "high": 772, "low": 752.4, "volume": 3670867 }, { "timestamp": 1581354000000, "open": 769.003, "close": 759, "high": 771, "low": 753.912, "volume": 1968231 }, { "timestamp": 1581357600000, "open": 759.6072, "close": 763.8342, "high": 767.7435, "low": 756, "volume": 1353974 }, { "timestamp": 1581361200000, "open": 763.9457, "close": 776.485, "high": 778.8799, "low": 763.76, "volume": 2611625 }, { "timestamp": 1581364800000, "open": 776.4421, "close": 770.8467, "high": 785.51, "low": 763.65, "volume": 3670783 }, { "timestamp": 1581368400000, "open": 771.28, "close": 771.5, "high": 771.59, "low": 767.06, "volume": 212557 }, { "timestamp": 1581372000000, "open": 771.5, "close": 769.56, "high": 771.5, "low": 769.22, "volume": 8383 }, { "timestamp": 1581375600000, "open": 769.5, "close": 770.9, "high": 770.9, "low": 769.5, "volume": 3333 }, { "timestamp": 1581379200000, "open": 771, "close": 773.6, "high": 774.22, "low": 770.02, "volume": 20777 }, { "timestamp": 1581411600000, "open": 783, "close": 778, "high": 786.48, "low": 777.22, "volume": 12485 }, { "timestamp": 1581415200000, "open": 778.06, "close": 783.32, "high": 784.73, "low": 778.06, "volume": 7046 }, { "timestamp": 1581418800000, "open": 783.65, "close": 780, "high": 784.35, "low": 780, "volume": 4194 }, { "timestamp": 1581422400000, "open": 780, "close": 771, "high": 782, "low": 768.22, "volume": 137304 }, { "timestamp": 1581426000000, "open": 780.9204, "close": 768.5, "high": 781.9, "low": 761, "volume": 138684 } ] }