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Crypto Market Sentiment (Fear & Greed + News)
x402
Crypto Market Sentiment (Fear & Greed + News) is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns a composite crypto market sentiment score blending the Fear & Greed index with aggregated news-headline sentiment, optionally filtered by coin or keyword.
Price / call$0.003
Success—
StatusUnknown
How this service works
Composite crypto market sentiment: the Fear & Greed index (value, classification, trend) blended with aggregated news-headline sentiment into one bullish/bearish/neutral score, optionally focused on a coin or query. Data by alternative.me (attributed) + curated RSS headlines.
Output
A composite sentiment object including the Fear & Greed index value and classification (e.g. 'Extreme Fear'), its recent trend direction, aggregated news-headline sentiment polarity, and a combined bullish/bearish/neutral verdict — optionally scoped to a specific coin or keyword filter.
Example use cases
Real-time trading decision support
“Check the crypto market sentiment right now and tell me if it's a good time to increase my Bitcoin position — factor in both the Fear & Greed index and what the latest news is saying.”
Portfolio risk assessment by coin
“Run a sentiment check on Ethereum and the broader market to see if there's growing pessimism I should be worried about, and show me how the mood has been trending over the past few days.”
Multi-asset sentiment comparison
“Give me a quick sentiment overview for Solana, Cardano, and the general crypto market so I can understand which ones are getting positive coverage versus negative sentiment right now.”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/crypto/sentimentWhen to prefer
Choose this endpoint when you need a single, pre-fused sentiment signal combining both the quantitative Fear & Greed index and qualitative news-headline sentiment in one call, rather than querying those sources separately. Ideal for crypto trading agents, portfolio dashboards, or decision-support workflows that need a quick bullish/bearish/neutral verdict with supporting context. Prefer this over raw price feeds when market mood and narrative tone matter more than tick-level price data.
Side effects
- Coin ticker not recognized — returns error or falls back to market-wide F&G only
- News RSS feed temporarily unavailable — composite score may omit headline sentiment component
- Rate limit or payment failure — 402 response requiring valid x402 USDC payment
- Invalid query parameter type — schema validation error returned
- No headlines matching the query filter — news sentiment component returns neutral or empty
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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