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Glassnode Fear & Greed Index
x402
Glassnode Fear & Greed Index is a paid API for AI agents from x402.glassnode.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Returns the current and historical Fear & Greed Index (0–100) for Bitcoin, sourced from Alternative.me and delivered via Glassnode's x402 paid API.
Price / call$0.05
Success—
StatusUnknown
How this service works
Fear & Greed Index — Fear & Greed Index is a third-party sentiment composite from Alternative.me that compresses inputs from multiple sources into a single 0-to-100 scalar capturing investor sentiment, where 0 denotes "extreme fear" (exaggerated negative sentiment) and 100 denotes "extreme greed" (maximum FOMO). Data by Glassnode.
Output
Returns an array of timestamped data points, each containing a Unix timestamp ('t') and a Fear & Greed scalar value ('v') between 0 (extreme fear) and 100 (extreme greed), reflecting aggregated crypto investor sentiment.
Example use cases
Example prompt
“What's the current Bitcoin Fear & Greed Index score from Glassnode right now — is the market in fear or greed?”
Technical details
Endpoint
GEThttps://x402.glassnode.com/v1/metrics/indicators/fear_greedWhen to prefer
Choose this endpoint when you need a single composite sentiment score summarizing the overall Bitcoin/crypto market mood in one number. Prefer this over on-chain metrics when the goal is understanding investor psychology (fear vs. greed) rather than raw blockchain activity. It is especially useful for market timing signals, dashboard widgets, or alerting workflows that track sentiment shifts.
Side effects
- Missing required 'a' query param (must be 'BTC') returns 400 error
- Payment not attached or insufficient USDC balance triggers 402 Payment Required
- Unsupported interval or format enum value returns validation error
- Rate limiting or upstream Alternative.me data unavailability may cause 503
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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