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Crypto Fear and Greed Index
x402
Crypto Fear and Greed Index is a paid API for AI agents from crypto.openverbs.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Returns the live crypto Fear and Greed Index (0–100 with classification label) and optionally a short historical daily series, sourced from alternative.me.
Price / call$0.003
Success—
StatusUnknown
How this service works
Crypto sentiment via the live Fear and Greed Index (0-100 with classification, e.g. Fear/Greed). Optionally include a short historical series. Source: alternative.me.
Output
Returns the current Fear and Greed Index value (integer 0–100) with a text classification (e.g. 'Extreme Fear', 'Fear', 'Neutral', 'Greed', 'Extreme Greed'), and optionally an array of daily historical index entries (score + classification) up to the requested number of days (max 30).
Example use cases
Daily market sentiment check
“What's today's crypto Fear and Greed Index score and what does the classification mean — is the market fearful or greedy right now?”
Weekly sentiment trend for trading decision
“Pull the Fear and Greed Index for the last 14 days so I can see whether sentiment has been improving or deteriorating heading into this week.”
Automated sentiment alert in portfolio dashboard
“Every morning, grab the crypto Fear and Greed Index score and flag it as extreme fear or extreme greed if it's below 20 or above 80.”
Technical details
Endpoint
POSThttps://crypto.openverbs.com/v1/fear-greedWhen to prefer
Choose this endpoint when you need a single, authoritative numerical sentiment score for the entire crypto market, especially if you want the familiar alternative.me Fear and Greed classification. Prefer it over raw social or news sentiment endpoints when you need a compact, pre-aggregated index rather than raw signal data, and when historical daily context (up to 30 days) is useful alongside the current reading.
Side effects
- Invalid limit value (outside 1–30 range) returns a validation error
- Upstream alternative.me data source outage may result in stale or unavailable data
- Malformed request body causes a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"stale": false,
"value": 71,
"series": [
{
"value": 71,
"timestamp": 1788739200,
"classification": "Greed"
}
],
"source": "alternative.me",
"timestamp": 1788739200,
"classification": "Greed"
}
}Tags
x402
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