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Crypto Fear & Greed Index with Context
x402
Crypto Fear & Greed Index with Context is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).
Returns the current Crypto Fear & Greed Index value enriched with trend, streak, contrarian signal, historical averages, and optional history up to 30 days
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.
Output
Returns a JSON object with the current Fear & Greed value (0–100), zone label (e.g. Fear, Greed), trend (rising/falling/flat), streak_days in current zone, contrarian signal (BUY_FEAR/SELL_GREED/NEUTRAL), change_1d/7d/30d, avg_7d, avg_30d, min_30d, max_30d, previous reading, human-readable reasons array, updated_at timestamp, source URL, and an optional history array of daily readings.
Example use cases
Pre-trade sentiment gate
“Before I place this crypto trade, check the fear and greed index — tell me the current value, whether sentiment is rising or falling, and whether the contrarian signal says buy, sell, or stay neutral.”
Daily crypto market summary
“Give me today's crypto sentiment summary: the fear and greed score, what zone we're in, how many days we've been there, and how it compares to 7 and 30 days ago.”
30-day sentiment trend review
“Pull the full 30-day fear and greed history for me, along with the 7-day and 30-day averages and the current streak, so I can see how market sentiment has evolved this month.”
Technical details
Endpoint
GEThttps://kr-x402-mvp.kgy5612.workers.dev/crypto/fear-greed?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need more than a raw Fear & Greed number — specifically when you need trend direction, streak context, contrarian trading signals, multi-period averages, or a compact history, all in one call at $0.001. Prefer over bare alternative.me wrappers that return only the current value, or over premium endpoints charging $0.005 for similar data.
Side effects
- 503 when upstream alternative.me is unavailable (not charged)
- Invalid days parameter (outside 0–30 range) returns a validation error
- No data available for requested history length
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"zone": "fear",
"label": "Fear",
"trend": "falling",
"value": 34,
"avg_7d": 39.4,
"signal": "NEUTRAL",
"source": "https://alternative.me/crypto/fear-and-greed-index/",
"avg_30d": 47.1,
"history": [
{
"date": "2026-10-30",
"label": "Fear",
"value": 34
}
],
"max_30d": 66,
"min_30d": 28,
"reasons": [
"34 Fear, -12 vs 7d ago",
"below 30d avg 47.1"
],
"previous": {
"label": "Fear",
"value": 38
},
"change_1d": -4,
"change_7d": -12,
"change_30d": -20,
"updated_at": "2026-10-30T00:00:00Z",
"streak_days": 5
}
}Tags
x402
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