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Crypto Market Rotation & Altseason Regime Detector
x402
Crypto Market Rotation & Altseason Regime Detector is a paid API for AI agents from api.n0brains.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Detects crypto capital rotation regimes — whether money is flowing into BTC, ETH, or altcoins — and returns sector breadth, relative strength, and which coins are rotating in vs out.
Price / call$0.002
Success—
StatusUnknown
How this service works
Crypto market rotation and altseason regime detector: sector/asset rotation score, breadth, relative strength, and which coins are rotating in vs out. Tells an agent whether capital is flowing to BTC, ETH, or alts right now. Not financial advice.
Output
Returns an object with a rotation/sector score, market breadth metrics, relative strength rankings, a list of leaders (coins rotating in with strong capital inflow) and laggards (coins rotating out), plus a sufficient_data boolean indicating whether the signal has enough data to be reliable.
Example use cases
Example prompt
“Is the crypto market in altseason right now, or is capital rotating back into BTC — and which coins are currently leading the rotation in vs out?”
Technical details
Endpoint
GEThttps://api.n0brains.com/x402/rotationWhen to prefer
Use this endpoint when an agent needs to determine the current crypto market regime (BTC vs ETH vs altcoin rotation) in real time, identify which specific coins are gaining or losing capital flows, or assess whether altseason conditions are present. Prefer over generic price APIs when the question is about relative capital rotation and sector leadership rather than absolute price levels.
Side effects
- Insufficient market data returns sufficient_data: false with empty leaders/laggards arrays
- Payment not included or invalid returns 402 Payment Required
- Service unavailable returns 5xx with no rotation data
- Rate limiting may occur under high request frequency
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"method": "RS-breadth + correlation-trend composite over 15m log returns",
"n_alts": 29,
"regime": "neutral",
"window": "168h rolling",
"breadth": 0.448,
"components": {
"rs_term": -0.1255,
"weights": {
"rs": 0.3,
"corr": 0.2,
"breadth": 0.5
},
"corr_term": 0.3395,
"breadth_term": -0.1034
},
"corr_trend": -0.0707,
"disclaimer": "Heuristic regime read from historical return breadth and correlation trend. Correlation is not causation; short windows are noisy. Not a prediction. Not financial advice.",
"calibration": "uncalibrated_heuristic",
"breadth_note": "Breadth = % of alts outperforming BTC over the window. This is a BREADTH PROXY, not true BTC dominance (no market-cap data).",
"rotation_score": -0.0215,
"sufficient_data": true,
"top_rotating_in": [
{
"coin": "TAO",
"rs_pct": 22.68
},
{
"coin": "JUP",
"rs_pct": 14.93
},
{
"coin": "OP",
"rs_pct": 9.89
},
{
"coin": "TIA",
"rs_pct": 6.52
},
{
"coin": "RENDER",
"rs_pct": 6.46
}
],
"breadth_is_proxy": true,
"top_rotating_out": [
{
"coin": "INJ",
"rs_pct": -13.75
},
{
"coin": "MON",
"rs_pct": -4
},
{
"coin": "POL",
"rs_pct": -3.97
},
{
"coin": "AVAX",
"rs_pct": -3.96
},
{
"coin": "APT",
"rs_pct": -3.16
}
],
"median_alt_rs_pct": -1.262
}Tags
x402
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