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Crypto Fear & Greed Index
x402
Crypto Fear & Greed Index is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).
Returns the current Crypto Fear & Greed Index (0–100) plus up to 365 days of daily historical values as a market-sentiment signal.
Price / call$0.002
Success—
StatusUnknown
How this service works
The Crypto Fear & Greed Index (0 extreme fear to 100 extreme greed) for today, with up to a year of daily history. Use as a market-sentiment signal for trading, newsletters or answering how the crypto market feels.
Output
Returns the current day's Fear & Greed Index score (0 = extreme fear, 100 = extreme greed) with a sentiment label, and optionally an array of daily historical index values (date + score + label) going back up to 365 days.
Example use cases
Daily crypto newsletter sentiment signal
“Pull today's Crypto Fear & Greed Index and the last 7 days of history — I want to include the current sentiment score and a week-over-week trend in my daily crypto newsletter.”
Automated trading sentiment filter
“Before placing my trade, check the current Crypto Fear & Greed Index — if it's below 25 (extreme fear) or above 75 (extreme greed), flag it so I can reconsider my position.”
90-day sentiment trend analysis
“Fetch the Crypto Fear & Greed Index for the past 90 days so I can chart how market sentiment has evolved alongside Bitcoin's price over that period.”
Technical details
Endpoint
GEThttps://bess-x402.onrender.com/v1/crypto/fear-greed?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a ready-made, normalized 0–100 sentiment index for the overall crypto market — particularly for newsletters, trading filters, or dashboards that need a quick market-mood signal without computing sentiment from raw data. It is more convenient than aggregating social media or on-chain signals yourself, and its daily-history feature makes it suitable for trend analysis over any window up to one year.
Side effects
- Invalid 'days' value outside 1–365 range returns a validation error
- Service unavailable on the hosted render.com instance causes a 503 response
- Payment not fulfilled (x402 protocol) results in a 402 Payment Required response
- Requesting future dates or data beyond available history may return fewer records than requested
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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