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Crypto Fear & Greed Index - Sentiment Score
x402
Crypto Fear & Greed Index - Sentiment Score is a paid API for AI agents from crypto.apitoll.cloud, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14, last successful call 2026-07-17).
Returns the current Crypto Fear & Greed Index score (0–100) and classification, with optional daily history up to 90 days, sourced from Alternative.me.
Price / call$0.001
Success100%
StatusUnknown
How this service works
The Crypto Fear & Greed index: the current market-sentiment score (0–100) and its classification (Extreme Fear → Extreme Greed), plus optional daily history. A widely-watched contrarian signal for crypto market timing. Sourced from Alternative.me.
Output
Returns the current sentiment score (0–100), its classification label (e.g. Extreme Fear, Fear, Neutral, Greed, Extreme Greed), the date the reading is as of, a count of results, the data source name, and optionally an array of historical daily records each containing score, classification, timestamp, and date — up to 90 days back.
Example use cases
Example prompt
“What's the current Crypto Fear & Greed index score and classification, and can you also pull the last 7 days of daily history so I can see how sentiment has been trending?”
Technical details
Endpoint
GEThttps://crypto.apitoll.cloud/v1/crypto/sentimentWhen to prefer
Use this endpoint when you need the widely-recognized Alternative.me Crypto Fear & Greed Index as a contrarian market-timing signal, especially when you want both the current reading and historical daily trend data in a single call. Prefer this over general market data endpoints when the specific goal is gauging investor sentiment or identifying extreme fear/greed conditions.
Side effects
- limit parameter out of range (1–90) returns validation error
- Upstream Alternative.me data unavailable causes fetch failure
- Missing or malformed query parameter returns 400 error
- Payment not processed (x402 payment required) returns 402 error
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 7
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"asOf": "2026-06-16T00:00:00.000Z",
"count": 7,
"value": 23,
"source": {
"url": "https://alternative.me/crypto/fear-and-greed-index/",
"name": "Alternative.me"
},
"history": [
{
"asOf": "2026-06-16T00:00:00.000Z",
"value": 23,
"timestamp": 1781568000,
"classification": "Extreme Fear"
},
{
"asOf": "2026-06-15T00:00:00.000Z",
"value": 20,
"timestamp": 1781481600,
"classification": "Extreme Fear"
},
{
"asOf": "2026-06-14T00:00:00.000Z",
"value": 18,
"timestamp": 1781395200,
"classification": "Extreme Fear"
},
{
"asOf": "2026-06-13T00:00:00.000Z",
"value": 13,
"timestamp": 1781308800,
"classification": "Extreme Fear"
},
{
"asOf": "2026-06-12T00:00:00.000Z",
"value": 12,
"timestamp": 1781222400,
"classification": "Extreme Fear"
},
{
"asOf": "2026-06-11T00:00:00.000Z",
"value": 12,
"timestamp": 1781136000,
"classification": "Extreme Fear"
},
{
"asOf": "2026-06-10T00:00:00.000Z",
"value": 9,
"timestamp": 1781049600,
"classification": "Extreme Fear"
}
],
"classification": "Extreme Fear"
}Schema · Response
{
"type": "json",
"example": {
"asOf": "2026-06-15T00:00:00Z",
"count": 1,
"value": 20,
"source": {
"name": "Alternative.me"
},
"history": [
{
"asOf": "2026-06-15T00:00:00Z",
"value": 20,
"timestamp": 1781481600,
"classification": "Extreme Fear"
}
],
"classification": "Extreme Fear"
}
}Tags
x402
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