# Crypto Fear & Greed Index Sentiment API

> Crypto Fear & Greed Index Sentiment API is a paid API for AI agents from kite-hub-v2.vercel.app, paid per call via x402, $0.17/call, status unknown (last checked 2026-09-14).

Returns the current crypto market fear and greed sentiment index score and classification

## Facts

- Endpoint: POST https://kite-hub-v2.vercel.app/api/sentiment/fear-greed
- Price: $0.17/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-fear-greed-index-sentiment-api-91da51e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_30fWaUc4Tc3rOEiY8A8wF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability crypto-fear-greed-index-sentiment-api-91da51e6 -d '<json body>'
```

Example prompt: What is the current crypto fear and greed index? I want to know if the market is in extreme fear, fear, neutral, greed, or extreme greed right now.

## When to prefer this

Use this endpoint when you need a quick, real-time snapshot of aggregate crypto market sentiment via the Fear & Greed Index, especially for trading dashboards, market mood alerts, or investment timing signals. Prefer this over custom sentiment analysis when you want the standard industry benchmark index rather than text-based NLP sentiment.

## Known failure modes

- Upstream data source unavailable — may return 500 or empty result
- Payment failure — 402 if USDC payment on Base chain is not processed correctly
- Rate limiting or quota exceeded — may return 429
- Malformed response if upstream index provider changes schema

## How this service works

400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.

## Output

Returns a result object containing the current fear and greed index score (typically 0-100) and a sentiment label such as Extreme Fear, Fear, Neutral, Greed, or Extreme Greed, reflecting overall crypto market sentiment.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-fear-greed-index-sentiment-api-91da51e6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-hub-v2.vercel.app](https://www.zero.xyz/host/kite-hub-v2.vercel.app/llms.txt)