# Crypto Fear & Greed Index

> Crypto Fear & Greed Index is a paid API for AI agents from api.jarvis-x402.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).

Returns the current crypto market Fear & Greed Index (0–100) with classification label (Extreme Fear to Extreme Greed).

## Facts

- Endpoint: POST https://api.jarvis-x402.com/fear-greed-pago
- 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-757557e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iNj17p0hRSGnKpkoWRlnM

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-757557e6 -d '<json body>'
```

Example prompt: What's the current crypto Fear and Greed Index score right now — is the market in fear or greed territory?

## When to prefer this

Choose this endpoint when you need a quick, single-call snapshot of overall crypto market sentiment expressed as the well-known Fear & Greed Index score and label, especially in agentic workflows that need to gate trading decisions or generate market reports based on sentiment without parsing raw market data yourself.

## Known failure modes

- Payment failure or insufficient USDC balance causing 402 response
- Upstream data source unavailable resulting in stale or missing index data
- Malformed POST body causing request rejection
- Network timeout from the jarvis-x402 API gateway

## How this service works

Indice de Miedo y Codicia del mercado cripto (0-100), con clasificacion (Extreme Fear a Extreme Greed).

## Output

Returns a numeric Fear & Greed Index score between 0 and 100, along with a classification label such as Extreme Fear, Fear, Neutral, Greed, or Extreme Greed, reflecting current overall crypto market sentiment.

## 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"
     ],
     "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-757557e6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.jarvis-x402.com](https://www.zero.xyz/host/api.jarvis-x402.com/llms.txt)