# Crypto Fear & Greed Index — Current Market Sentiment Score

> Crypto Fear & Greed Index — Current Market Sentiment Score is a paid API for AI agents from perpsignals.use.x402atlas.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).

Returns the current Crypto Fear & Greed index score (0–100) and its sentiment label (e.g. Extreme Fear, Greed) in a snake_case JSON envelope.

## Facts

- Endpoint: GET https://perpsignals.use.x402atlas.com/fear-greed
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-fear-greed-index-current-market-sentiment-score-75343ad9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gLxiuu_pPDh6KCxAKIFfJ

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-current-market-sentiment-score-75343ad9
```

Example prompt: What's the current crypto fear and greed index score right now — is the market in fear or greed, and what's the exact number?

## When to prefer this

Use this endpoint when you need a single, clean, up-to-date snapshot of the Crypto Fear & Greed index score and label — especially within a crypto trading or perpetual-futures workflow alongside sibling endpoints for funding rates and trading pairs. Prefer over general market sentiment APIs when you need the standardized 0–100 Fear & Greed scale specifically.

## Known failure modes

- Upstream data source unavailable — may return 502 or empty payload
- Stale data if the index provider has not refreshed — score may lag real-time conditions
- Payment failure (402) if USDC balance is insufficient or x402 header is malformed

## How this service works

Crypto Fear & Greed index — the current market-sentiment score (0-100) and its label (Extreme Fear … Extreme Greed), as a clean snake_case envelope.

## Output

A snake_case JSON object containing the current Fear & Greed index value (integer 0–100) and a human-readable sentiment label such as 'Extreme Fear', 'Fear', 'Neutral', 'Greed', or 'Extreme Greed'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "as_of": "2026-07-01T00:00:00Z",
  "label": "Extreme Fear",
  "value": 19,
  "queried_at": "2026-07-01T12:00:00Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-fear-greed-index-current-market-sentiment-score-75343ad9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from perpsignals.use.x402atlas.com](https://www.zero.xyz/host/perpsignals.use.x402atlas.com/llms.txt)