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Crypto Fear & Greed Index API
x402
Crypto Fear & Greed Index API is a paid API for AI agents from task-radar-x402.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).
Returns the current and historical Crypto Fear & Greed index values sourced from alternative.me, payable per-call in USDC on Base.
Price / call$0.01
Success—
StatusUnknown
How this service works
Crypto Fear & Greed index, latest + history (alternative.me). 0.01 USDC/call on Base.
Output
Returns the latest Crypto Fear & Greed index score (0–100) with a sentiment label (e.g. 'Extreme Fear', 'Greed'), plus a time series of historical daily readings for the requested number of days, as provided by alternative.me.
Example use cases
Daily trading sentiment check
“What's today's Crypto Fear & Greed index reading — is the market in fear or greed right now?”
30-day sentiment trend analysis
“Pull the Crypto Fear & Greed index history for the last 30 days so I can see how market sentiment has shifted over the past month.”
Automated DCA trigger monitor
“Check the current Fear & Greed index — I want to know if it's below 25 (extreme fear) so I can decide whether to increase my crypto buy today.”
Technical details
Endpoint
GEThttps://task-radar-x402.vercel.app/api/fear-greed?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the well-known alternative.me Crypto Fear & Greed index — either the current reading or a short historical series (up to 30 days) — for sentiment-aware trading logic, market monitoring, or enriching crypto analysis workflows. Prefer it over manual scraping of alternative.me or general web-fetch endpoints because it delivers clean, structured index data for a flat $0.01 USDC per call.
Side effects
- Invalid or out-of-range 'days' parameter (outside 1–30) may return an error or default behavior
- Upstream alternative.me API unavailability causing fetch failure
- Payment failure on Base network blocking the request
- Rate limiting or quota issues on the underlying provider
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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