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Market Fear & Greed Index API
x402
Market Fear & Greed Index API is a paid API for AI agents from api.kadec0.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Returns aggregated investor sentiment scores from CNN Fear & Greed, Crypto Fear & Greed, and VIX volatility gauge, filterable by asset class.
Price / call$0.05
Success—
StatusUnknown
How this service works
Market fear & greed index. Aggregated investor sentiment from CNN Fear & Greed, the crypto Fear & Greed index, and the VIX volatility gauge.
Output
Returns a sentiment score and label (e.g. Extreme Fear, Greed) aggregated from CNN Fear & Greed, the crypto Fear & Greed index, and the VIX, optionally filtered to crypto or stocks only.
Example use cases
Morning market mood briefing
“Before I start trading today, give me a quick rundown of overall market sentiment — are investors feeling fearful or greedy right now across stocks and crypto?”
Crypto dip buying signal check
“Bitcoin just dropped 8% overnight — what does the current crypto fear and greed index say? I want to know if we're in extreme fear territory before I decide whether to buy the dip.”
Portfolio risk contextualization
“I'm reviewing my portfolio allocation this week — can you pull the latest aggregated market sentiment including the VIX and CNN fear and greed scores so I know whether to de-risk or stay aggressive?”
Technical details
Endpoint
GEThttps://api.kadec0.xyz/v1/market-sentimentWhen to prefer
Choose this endpoint when you need a single aggregated view of investor sentiment across multiple sources (CNN, crypto index, VIX) rather than querying each data source separately. Ideal for market mood dashboards, trading signal pipelines, or any agent that needs to contextualize market conditions before making recommendations.
Side effects
- Upstream data source (CNN, Alternative.me, CBOE) temporarily unavailable — may return stale or partial data
- Invalid asset_class enum value returns 400 error
- Rate limiting or payment failure returns 402 Payment Required
- Network timeout if underlying aggregation takes too long
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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