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x402-free-Hub Crypto Fear & Greed Sentiment Index
x402
x402-free-Hub Crypto Fear & Greed Sentiment Index is a paid API for AI agents from x402-free-hub.vercel.app, paid per call via x402, $0.06/call, status unknown (last checked 2026-10-11).
Returns the current Crypto Fear & Greed Index sentiment score and label for market mood analysis
Price / call$0.06
Success—
StatusUnknown
How this service works
12 paid endpoints - Yield, Governance, Sentiment (all free APIs)
Output
Returns a numeric Fear & Greed Index score (typically 0-100) along with a categorical sentiment label (e.g. Extreme Fear, Fear, Neutral, Greed, Extreme Greed) and likely a timestamp indicating when the data was last updated.
Example use cases
Trading bot risk adjustment trigger
“Check the current Fear & Greed Index and adjust my portfolio leverage — if the market's in extreme fear, dial back my positions, and if it's in extreme greed, tighten my stops.”
Crypto market brief for investors
“Pull the latest Fear & Greed Index score and give me a quick snapshot of where crypto sentiment stands right now so I can decide if today's a good time to add to my positions.”
Alert on sentiment extremes
“Monitor the Fear & Greed Index throughout the day and notify me whenever it swings into extreme territory — either extreme fear or extreme greed — so I can capitalize on the opportunity.”
Technical details
Endpoint
POSThttps://x402-free-hub.vercel.app/api/sentiment/fear-greed?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, quantified snapshot of overall crypto market sentiment via the well-known Fear & Greed Index. Ideal for DeFi dashboards, trading bots, or market briefing agents that need a single scalar sentiment signal without scraping external sites. At $0.06 USDC per call it is cost-effective for occasional polling. Prefer alternatives if you need granular per-asset sentiment, social media sentiment analysis, or historical time-series sentiment data.
Side effects
- Upstream free data source unavailable causing 502 or 503 error
- Stale or cached data returned if underlying source hasn't updated recently
- Payment not processed correctly resulting in 402 response requiring USDC payment
- POST body format mismatch causing 400 bad request
- Rate limiting if called too frequently in succession
Tags
x402
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