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Crypto Fear & Greed Index API
x402
Crypto Fear & Greed Index API is a paid API for AI agents from x402.shizu.me, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Returns the current crypto market Fear & Greed Index score (0–100) with classification and optional historical values for up to 90 days
Price / call$0.002
Success—
StatusUnknown
How this service works
Crypto market sentiment: the Fear & Greed Index (0=extreme fear, 100=extreme greed) with classification, plus optional history. Query: days (1-90, default 7). Use as a contrarian signal, regime filter, or risk gauge in trading loops.
Output
Returns the current Fear & Greed Index numeric score (0=extreme fear, 100=extreme greed), its text classification label, and if days > 1, an array of historical daily index values with timestamps covering the requested period.
Example use cases
Example prompt
“Pull the crypto Fear & Greed Index for the last 30 days so I can see whether the market has been in fear or greed territory and use it as a contrarian signal filter for my trading strategy.”
Technical details
Endpoint
GEThttps://x402.shizu.me/sentimentWhen to prefer
Use this endpoint when you need a quick, structured crypto market sentiment reading — especially for trading loops, regime filtering, or contrarian signal generation. Prefer over scraping external sites or using the broader crypto briefing endpoint when you only need the raw sentiment index number and history without full narrative context.
Side effects
- days parameter out of range (must be 1–90) — returns error
- payment not processed — 402 response requiring USDC payment
- upstream data source unavailable — may return stale or error response
- invalid parameter type — non-integer days value
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Output
Schema · Response
{
"type": "json",
"example": {
"now": {
"value": 28,
"classification": "Fear"
},
"history": [
{
"date": "2026-07-12",
"value": 26,
"classification": "Fear"
}
]
}
}Tags
x402
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