# Crypto Fear & Greed Index

> Crypto Fear & Greed Index is a paid API for AI agents from etherealgoodsco.store, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns the current Crypto Fear & Greed Index score (0-100) with its sentiment classification (e.g. Extreme Fear, Greed)

## Facts

- Endpoint: POST https://etherealgoodsco.store/finance/fear-greed
- Price: $0.05/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-fa4053c0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KIrCV8exZbhaQyIBEPILK

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-fa4053c0 -d '<json body>'
```

Example prompt: What's the current Crypto Fear & Greed Index score? I want to know whether the market is in fear or greed territory right now.

## When to prefer this

Choose this endpoint when you need a quick, low-cost, single-call lookup of the aggregate crypto market sentiment index. It is ideal for agents that need to factor in broad market psychology before executing trades, generating reports, or triggering conditional workflows. Prefer it over raw price feeds when you want a pre-computed, normalized sentiment score rather than raw market data.

## Known failure modes

- Upstream data source unavailable — may return 5xx or stale data
- Invalid request body format — returns 400 if required HTTP method or body type is malformed
- Payment not fulfilled — returns 402 if x402 payment is not completed before request
- Rate limiting or quota exceeded — may return 429 or similar

## How this service works

Crypto Fear & Greed Index (0-100) with classification

## Output

Returns the current Crypto Fear & Greed Index as a numeric score from 0 to 100, along with a human-readable classification such as 'Extreme Fear', 'Fear', 'Neutral', 'Greed', or 'Extreme Greed', representing the prevailing sentiment in the crypto market.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [],
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-fear-greed-index-fa4053c0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from etherealgoodsco.store](https://www.zero.xyz/host/etherealgoodsco.store/llms.txt)