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x402stock Fear & Greed Index History
x402
x402stock Fear & Greed Index History is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402 or MPP, $0.02/call, status unknown (last checked 2026-09-15).
Returns historical CNN Fear & Greed Index readings to track market sentiment over time
Price / call$0.02
Success—
StatusUnknown
How this service works
The full daily history of the US stock Fear & Greed index from 2016 to today, each point a date and 0–100 score. Pass `?days=N` to return only the most recent N days (default: full series). Use for charting sentiment regimes and backtesting against price. Companion to /api/v1/fear-greed (current reading). From x402stock, a market & economic data API (x402, USDC).
Output
Returns a time series of historical Fear & Greed Index readings, each entry including a numeric score (0–100), a sentiment label (Extreme Fear, Fear, Neutral, Greed, Extreme Greed), and a timestamp. Useful for charting sentiment trends, backtesting, and comparing market mood across different periods.
Example use cases
Backtesting sentiment-driven strategy
“Give me the daily Fear & Greed Index history for the entire year 2023 so I can backtest how market sentiment correlated with S&P 500 returns.”
Crash period sentiment analysis
“Show me the Fear & Greed Index readings from October 2022 through March 2023 — I want to see how sentiment evolved during that bear market bottom.”
Current cycle sentiment trend
“Fetch the Fear & Greed Index history for the last 6 months so I can chart whether we've been trending toward more fear or greed recently.”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/fear-greed/historyWhen to prefer
Choose this endpoint when you need time-series sentiment data rather than a single current reading. Ideal for backtesting, trend analysis, or comparing market mood across multiple historical periods. Prefer over current-snapshot endpoints when the user asks about how sentiment has changed, evolved, or trended over any past window.
Side effects
- Payment not provided or insufficient USDC — returns 402 Payment Required
- Invalid or malformed request body — returns 400 Bad Request
- Date range outside available historical data — returns empty result set or 404
- Network timeout on upstream data provider — returns 503 Service Unavailable
- Requested properties field not recognized — may return partial or empty data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Tags
x402
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