# Crypto Fear & Greed Index API

> Crypto Fear & Greed Index 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 2026-09-15).

Retrieves the current and historical Crypto Fear & Greed Index score, indicating overall market sentiment from extreme fear to extreme greed

## Facts

- Endpoint: POST https://kite-hub-v2.vercel.app/api/fear-greed
- Price: $0.17/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-fear-greed-index-api-72145de8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rMdT_GH35kH9G38nVXMPB

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-api-72145de8 -d '<json body>'
```

Example prompt: What is the current Crypto Fear & Greed Index score right now — is the market in fear or greed territory?

## When to prefer this

Use this endpoint when an agent needs a quick, paid-per-call lookup of the Crypto Fear & Greed Index without managing an API key from Alternative.me or similar providers directly. Suitable for crypto trading bots, portfolio dashboards, or sentiment monitoring workflows that pay per request via USDC on Base chain.

## Known failure modes

- Upstream data source unavailable — returns 5xx or empty result
- Payment not processed — returns 402 Payment Required if USDC payment not attached
- Rate limit exceeded — returns 429
- Malformed response if underlying index provider API is down or changes format

## 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 an object containing the current Fear & Greed Index numeric score (0–100), a sentiment label (e.g. 'Extreme Fear', 'Fear', 'Neutral', 'Greed', 'Extreme Greed'), and likely a timestamp or date of the reading. May also include historical values.

## 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-api-72145de8/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)