QuantOracle Indicators Crossover

x402

QuantOracle Indicators Crossover is a paid API for AI agents from api.quantoracle.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Computes EMA crossover signal (BULLISH/BEARISH) between a fast and slow exponential moving average from a price series

Price / call$0.005

Seller volume →—

Success—

StatusUnknown

How this service works

QuantOracle: indicators/crossover

Output

Returns a signal string ('BULLISH' or 'BEARISH'), the computed fast and slow EMA values, the absolute spread between them, the spread as a percentage, a list of recent crossover events, and the total number of crosses detected in the series.

Example use cases

Example prompt

“Check whether there's a bullish or bearish EMA crossover in this 30-day price series for BTC: [100.5, 101.2, 102.1, ... 120.3] — use a fast period of 12 and slow period of 26 and tell me the spread and signal.”

Technical details

Endpoint

POSThttps://api.quantoracle.dev/v1/indicators/crossover

When to prefer

Use this endpoint when you need a fast, low-latency EMA crossover calculation with explicit BULLISH/BEARISH signal output and spread metrics from raw price data. Prefer this over full technical analysis suites when you only need moving average crossover detection without additional indicators. Ideal for automated trading signal pipelines or momentum screening.

Side effects

Insufficient price data for the requested slow_period — series must have at least slow_period+1 data points
fast_period must be less than slow_period otherwise computation is undefined
Empty or malformed prices array returns a 400 error
Non-numeric values in prices array cause validation failure
slow_period larger than prices array length causes computation error

Input

{
  "params": {
    "fast": 12,
    "slow": 26
  },
  "prices": [
    100.5,
    101.2,
    102.1,
    101.8,
    103.5,
    104.2,
    103.9,
    105.1,
    106.3,
    105.8,
    107.2,
    108.1,
    107.5,
    109.3,
    110.2,
    109.8,
    111.5,
    112.3,
    111.9,
    113.7,
    114.5,
    113.2,
    115.1,
    116.8,
    115.9,
    117.6,
    118.4,
    117.8,
    119.5,
    120.3
  ],
  "strategy": "sma_crossover",
  "slippage_bps": 5,
  "commission_bps": 5,
  "initial_capital": 10000
}

Schema · Request body

Field	Type	Description
prices	array	Array of price data
fast_period	integer	Fast moving average period
slow_period	integer	Slow moving average period

Output

{
  "ms": 101.84,
  "_meta": {
    "url": "https://quantoracle.dev",
    "docs": "https://api.quantoracle.dev/docs",
    "powered_by": "QuantOracle"
  },
  "signal": "BULLISH",
  "spread": 6.7939,
  "fast_ema": 116.96,
  "slow_ema": 110.17,
  "spread_pct": 6.167,
  "last_signals": [],
  "total_crosses": 0
}

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Technical details

Endpoint

POSThttps://api.quantoracle.dev/v1/indicators/crossover

When to prefer

Side effects

Insufficient price data for the requested slow_period — series must have at least slow_period+1 data points
fast_period must be less than slow_period otherwise computation is undefined
Empty or malformed prices array returns a 400 error
Non-numeric values in prices array cause validation failure
slow_period larger than prices array length causes computation error

Input

{
  "params": {
    "fast": 12,
    "slow": 26
  },
  "prices": [
    100.5,
    101.2,
    102.1,
    101.8,
    103.5,
    104.2,
    103.9,
    105.1,
    106.3,
    105.8,
    107.2,
    108.1,
    107.5,
    109.3,
    110.2,
    109.8,
    111.5,
    112.3,
    111.9,
    113.7,
    114.5,
    113.2,
    115.1,
    116.8,
    115.9,
    117.6,
    118.4,
    117.8,
    119.5,
    120.3
  ],
  "strategy": "sma_crossover",
  "slippage_bps": 5,
  "commission_bps": 5,
  "initial_capital": 10000
}

Schema · Request body

Field	Type	Description
prices	array	Array of price data
fast_period	integer	Fast moving average period
slow_period	integer	Slow moving average period

Output

{
  "ms": 101.84,
  "_meta": {
    "url": "https://quantoracle.dev",
    "docs": "https://api.quantoracle.dev/docs",
    "powered_by": "QuantOracle"
  },
  "signal": "BULLISH",
  "spread": 6.7939,
  "fast_ema": 116.96,
  "slow_ema": 110.17,
  "spread_pct": 6.167,
  "last_signals": [],
  "total_crosses": 0
}