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x402stock Fear & Greed Index
x402
x402stock Fear & Greed Index is a paid API for AI agents from x402stock.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Returns the current US stock market Fear & Greed index score (0–100), sentiment rating, five weighted components, 30-day history, and S&P 500 backtest by sentiment zone
Price / call$0.02
Success—
StatusUnknown
How this service works
The current US stock-market Fear & Greed index (0–100, CNN-style) with its sentiment rating and all five weighted components — volatility, momentum, put/call, safe-haven demand, junk-bond demand — each with value, weight, and reading. Includes the last 30 days of scores and a backtest of S&P 500 forward returns by sentiment zone. A one-call read of market mood. From x402stock
Output
Returns a JSON object with: current index score (0–100), sentiment rating (e.g. 'Extreme Fear', 'Greed'), an array of five components each with name, value, weight, and reading (volatility, momentum, put/call, safe-haven demand, junk-bond demand), an array of the last 30 daily scores with dates, and a backtest array showing S&P 500 average return, win rate, best/worst outcomes across time periods for each sentiment zone.
Example use cases
Portfolio rebalancing based on market sentiment
“I'm thinking about rebalancing my portfolio. Pull the current market fear and greed index score and tell me what sentiment zone we're in right now — then show me the historical S&P 500 returns from that same sentiment zone so I can decide if it's a good time to rotate between stocks and bonds.”
Daily market mood check for trading decisions
“What's the market mood like today? Get me the latest fear and greed index score, the sentiment rating, and break down those five components — volatility, momentum, put-call ratio, safe-haven demand, and junk-bond demand — so I can see what's really driving sentiment right now.”
Identify extreme sentiment opportunities
“I want to catch market extremes. Show me the last 30 days of fear and greed scores, flag any days that hit extreme fear or extreme greed, and then give me the historical win rates and best-case outcomes for the S&P 500 when sentiment was that extreme — so I know if this is a buy or sell signal.”
Technical details
Endpoint
GEThttps://x402stock.xyz/api/v1/fear-greedWhen to prefer
Use this endpoint when you need a single comprehensive read of current US equity market sentiment, including the composite fear/greed score, its five underlying drivers, recent trend data, and historical return context — all in one call. Prefer this over manually assembling VIX, options, or bond spread data yourself.
Side effects
- Payment not included or insufficient (402 Payment Required)
- Data source temporarily unavailable — score or component values may be null
- Network timeout on upstream data provider
- Invalid API path returns 404
Input
{
"properties": ""
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"as_of": "2026-06-12T04:16:41.000Z",
"index": "us_stock",
"score": 50,
"rating": "Neutral",
"recent": [
{
"date": "2026-05-01",
"score": 70
},
{
"date": "2026-05-04",
"score": 61
},
{
"date": "2026-05-05",
"score": 64
},
{
"date": "2026-05-06",
"score": 67
},
{
"date": "2026-05-07",
"score": 66
},
{
"date": "2026-05-08",
"score": 67
},
{
"date": "2026-05-11",
"score": 59
},
{
"date": "2026-05-12",
"score": 63
},
{
"date": "2026-05-13",
"score": 64
},
{
"date": "2026-05-14",
"score": 65
},
{
"date": "2026-05-15",
"score": 63
},
{
"date": "2026-05-18",
"score": 61
},
{
"date": "2026-05-19",
"score": 65
},
{
"date": "2026-05-20",
"score": 63
},
{
"date": "2026-05-21",
"score": 66
},
{
"date": "2026-05-22",
"score": 66
},
{
"date": "2026-05-26",
"score": 67
},
{
"date": "2026-05-27",
"score": 65
},
{
"date": "2026-05-28",
"score": 67
},
{
"date": "2026-05-29",
"score": 69
},
{
"date": "2026-06-01",
"score": 62
},
{
"date": "2026-06-02",
"score": 67
},
{
"date": "2026-06-03",
"score": 69
},
{
"date": "2026-06-04",
"score": 67
},
{
"date": "2026-06-05",
"score": 41
},
{
"date": "2026-06-08",
"score": 51
},
{
"date": "2026-06-09",
"score": 39
},
{
"date": "2026-06-10",
"score": 48
},
{
"date": "2026-06-11",
"score": 39
},
{
"date": "2026-06-12",
"score": 50
}
],
"source": "x402stock",
"backtest": [
{
"zone": "extreme_fear",
"label": "Extreme Fear (0–20)",
"entries": 31,
"periods": [
{
"period": "1 Month",
"samples": 30,
"best_percent": 23.07,
"worst_percent": -11.68,
"win_rate_percent": 83,
"avg_return_percent": 4.37
},
{
"period": "3 Months",
"samples": 30,
"best_percent": 34.9,
"worst_percent": -5.37,
"win_rate_percent": 90,
"avg_return_percent": 9.26
},
{
"period": "6 Months",
"samples": 30,
"best_percent": 42.91,
"worst_percent": -6.84,
"win_rate_percent": 90,
"avg_return_percent": 13.35
}
]
},
{
"zone": "fear",
"label": "Fear (21–40)",
"entries": 116,
"periods": [
{
"period": "1 Month",
"samples": 114,
"best_percent": 17.08,
"worst_percent": -33.14,
"win_rate_percent": 70,
"avg_return_percent": 1.91
},
{
"period": "3 Months",
"samples": 111,
"best_percent": 29.63,
"worst_percent": -12.27,
"win_rate_percent": 74,
"avg_return_percent": 4.83
},
{
"period": "6 Months",
"samples": 106,
"best_percent": 37.48,
"worst_percent": -17.56,
"win_rate_percent": 80,
"avg_return_percent": 8.61
}
]
},
{
"zone": "neutral",
"label": "Neutral (41–60)",
"entries": 259,
"periods": [
{
"period": "1 Month",
"samples": 255,
"best_percent": 11.35,
"worst_percent": -10.21,
"win_rate_percent": 72,
"avg_return_percent": 1.31
},
{
"period": "3 Months",
"samples": 250,
"best_percent": 18.21,
"worst_percent": -23.02,
"win_rate_percent": 74,
"avg_return_percent": 3.3
},
{
"period": "6 Months",
"samples": 244,
"best_percent": 26.46,
"worst_percent": -25.25,
"win_rate_percent": 79,
"avg_return_percent": 6.7
}
]
},
{
"zone": "greed",
"label": "Greed (61–80)",
"entries": 154,
"periods": [
{
"period": "1 Month",
"samples": 154,
"best_percent": 9.06,
"worst_percent": -10.18,
"win_rate_percent": 69,
"avg_return_percent": 1.03
},
{
"period": "3 Months",
"samples": 152,
"best_percent": 14.72,
"worst_percent": -24.9,
"win_rate_percent": 75,
"avg_return_percent": 2.84
},
{
"period": "6 Months",
"samples": 151,
"best_percent": 22.6,
"worst_percent": -20.91,
"win_rate_percent": 79,
"avg_return_percent": 6.5
}
]
},
{
"zone": "extreme_greed",
"label": "Extreme Greed (81–100)",
"entries": 7,
"periods": [
{
"period": "1 Month",
"samples": 7,
"best_percent": 4.25,
"worst_percent": -3.69,
"win_rate_percent": 71,
"avg_return_percent": 0.36
},
{
"period": "3 Months",
"samples": 7,
"best_percent": 4.67,
"worst_percent": -21.51,
"win_rate_percent": 43,
"avg_return_percent": -5.13
},
{
"period": "6 Months",
"samples": 7,
"best_percent": 14.01,
"worst_percent": -5.7,
"win_rate_percent": 57,
"avg_return_percent": 2.38
}
]
}
],
"components": [
{
"name": "VOLATILITY",
"value": 34,
"detail": "VIX 19.4 / MA20 17.6",
"weight": 25,
"description": "VIX vs 20-day average"
},
{
"name": "MOMENTUM",
"value": 68,
"detail": "SPY 738 / MA125 697",
"weight": 25,
"description": "S&P 500 vs 125-day MA"
},
{
"name": "PUT/CALL",
"value": 54,
"detail": "VIX/VIX3M 0.91",
"weight": 20,
"description": "Options sentiment (5-day avg)"
},
{
"name": "SAFE HAVEN",
"value": 42,
"detail": "SPY-TLT -2.6%",
"weight": 15,
"description": "Stocks vs bonds 20-day"
},
{
"name": "JUNK BONDS",
"value": 47,
"detail": "HYG-LQD -0.4%",
"weight": 15,
"description": "High yield vs investment grade"
}
]
}Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-06-05T00:00:00.000Z",
"index": "us_stock",
"score": 69,
"rating": "Greed",
"recent": [
{
"date": "2026-06-04",
"score": 64
}
],
"source": "x402stock",
"backtest": [
{
"zone": "extreme_fear",
"label": "Extreme Fear (0–20)",
"entries": 31,
"periods": [
{
"period": "1 Month",
"samples": 30,
"best_percent": 23.07,
"worst_percent": -11.68,
"win_rate_percent": 83,
"avg_return_percent": 4.37
}
]
}
],
"components": [
{
"name": "VOLATILITY",
"value": 63,
"detail": "VIX 15.4 / MA20 16.9",
"weight": 25,
"description": "VIX vs 20-day average"
},
{
"name": "MOMENTUM",
"value": 77,
"detail": "SPY 757 / MA125 695",
"weight": 25,
"description": "S&P 500 vs 125-day MA"
}
]
}
}Tags
x402
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