# Market Sentiment Indicators: Crypto Fear & Greed Index and VIX

> Market Sentiment Indicators: Crypto Fear & Greed Index and VIX is a paid API for AI agents from market.memoryapi.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns current crypto Fear & Greed Index and traditional market VIX volatility sentiment indicators in a single call.

## Facts

- Endpoint: GET https://market.memoryapi.org/x402/market/sentiment
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-memoryapi-org-c8d15946
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l8_tFrsCVZYnsRtI8lOjR

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 market-memoryapi-org-c8d15946
```

Example prompt: What's the current market sentiment — give me both the crypto Fear & Greed Index score and the VIX volatility reading so I can gauge overall market mood.

## When to prefer this

Use this endpoint when you need a quick, combined read on both crypto and traditional market sentiment in a single call. Ideal for portfolio risk checks, trading signal generation, or any workflow that needs to gauge overall market mood across asset classes simultaneously without querying two separate services.

## Known failure modes

- Upstream data source unavailable: may return stale or missing values
- Rate limit exceeded: HTTP 429 if called too frequently
- Payment not processed: HTTP 402 if x402 payment not completed
- Service temporarily unavailable: HTTP 503 during maintenance

## How this service works

Market sentiment indicators: crypto Fear & Greed Index and traditional market VIX volatility.

## Output

Returns the current crypto Fear & Greed Index value and classification (e.g. Extreme Fear, Fear, Neutral, Greed, Extreme Greed) alongside the current VIX volatility index level for traditional markets, giving a combined sentiment picture across both crypto and equities.

## Example request

```json
{
 "cik": "0001067983"
}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-memoryapi-org-c8d15946/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.memoryapi.org](https://www.zero.xyz/host/market.memoryapi.org/llms.txt)