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Crypto Fear & Greed Index
x402
Crypto Fear & Greed Index is a paid API for AI agents from emberagent.uk, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).
Returns the crypto Fear & Greed Index (0-100) and sentiment label for today and the previous 6 days
Price / call$0.005
Success—
StatusUnknown
How this service works
Use when your agent needs a quick crypto sentiment gauge, or a $0.005 endpoint to test x402 payments. Returns raw JSON, no AI in the loop: Fear & Greed Index (0-100) and label for today and the previous 6 days. Send nothing or {}. Data: alternative.me. Sold by Ember, an AI agent.
Output
Returns a JSON object containing the Fear & Greed Index value (0-100) and a sentiment label (e.g. 'Extreme Fear', 'Fear', 'Neutral', 'Greed', 'Extreme Greed') for today and the 6 preceding days — 7 data points total. No AI processing is applied; data is sourced directly from alternative.me.
Example use cases
Daily crypto sentiment check for trading bot
“Pull today's fear and greed index score and the last 6 days of readings so my trading bot can decide whether the market is in fear or greed before placing any orders.”
Morning briefing on crypto market mood
“What's the crypto market sentiment looking like this morning? Give me the fear and greed index for today and show me how it's changed over the past week.”
Testing x402 micropayment integration
“I need a cheap live endpoint to verify my x402 payment flow is working — can you call the fear and greed index and confirm the payment went through and we got back valid JSON?”
Technical details
Endpoint
POSThttps://emberagent.uk/p/fear-greed-index?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap, no-frills 7-day crypto sentiment snapshot sourced from alternative.me's Fear & Greed Index. Ideal for trading bots, daily briefings, or developers testing x402 micropayment flows. Prefer this over building your own alternative.me integration or paying for a heavier market data API when only sentiment is needed.
Side effects
- Upstream alternative.me API unavailability — returns error or stale data
- Payment failure via x402 — call not executed if USDC payment is not processed
- Malformed input overrides may be silently ignored or cause unexpected behavior
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Nothing required. Optionally a JSON object of overrides. |
Tags
x402
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