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Crypto Fear & Greed Index – Today's Value and History
x402
Crypto Fear & Greed Index – Today's Value and History is a paid API for AI agents from agent-data-tools.revmesh2074.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Returns the current Crypto Fear & Greed Index value, classification, change vs 1/7/30 days ago, range stats, and daily history up to 90 days from alternative.me
Price / call$0.01
Success—
StatusUnknown
How this service works
The Crypto Fear & Greed Index (0 = extreme fear, 100 = extreme greed) from alternative.me: today's value and label, the change against 1, 7 and 30 days ago, the low, high and average over the window, and the daily history (up to 90 days, default 30). Updated once a day. Use as a market-sentiment input for a trading agent, a dashboard or a daily brief; for live prices use price_token.
Output
A JSON object containing today's Fear & Greed index value (0–100) and classification (e.g. 'Extreme Fear', 'Greed'), the change in index points vs 1, 7, and 30 days ago, the low, high, and average over the requested window, an array of daily {date, value, classification} history entries, the data source attribution, and seconds until the next update.
Example use cases
Daily crypto market sentiment brief
“Every morning, pull today's Crypto Fear & Greed Index value and label, plus how it's shifted versus yesterday, last week, and 30 days ago, and include it in my daily briefing.”
Trading agent sentiment filter
“Before placing any trade, check the current Fear & Greed Index — if it's below 25 (extreme fear) or above 75 (extreme greed), flag it so I can decide whether to adjust my position.”
90-day sentiment trend analysis
“Give me the full 90-day daily history of the Crypto Fear & Greed Index so I can see how market sentiment has evolved over the past three months, including the low, high, and average.”
Technical details
Endpoint
GEThttps://agent-data-tools.revmesh2074.workers.dev/crypto/fear-greed?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need the standardized alternative.me Crypto Fear & Greed Index — the most widely cited crypto sentiment indicator — including its historical trend, range stats, and day-over-day changes. It is updated once a day so it is not suitable for intraday sentiment; for live token prices use a price endpoint. Prefer this over scraping alternative.me directly or building your own index from raw data.
Side effects
- Invalid 'days' value outside 1–90 returns a validation error
- Upstream alternative.me outage may result in stale or unavailable data
- Network timeout on the Cloudflare Worker may return a 5xx error
- Requesting days=1 returns minimal history and may show no meaningful change stats
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| days | integer | Days of history, 1-90 (default 30) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| date | string | |
| range | object | |
| value | number | |
| change | object | |
| source | string | |
| history | array | |
| attribution | string | |
| classification | string | |
| nextUpdateSeconds | number |
Tags
x402
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