# Crypto Fear & Greed Index with Yesterday Comparison

> Crypto Fear & Greed Index with Yesterday Comparison is a paid API for AI agents from agenttoll-pi.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns the current Crypto Fear & Greed index value along with yesterday's value for comparison

## Facts

- Endpoint: GET https://agenttoll-pi.vercel.app/api/feargreed
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-fear-greed-index-with-yesterday-comparison-45611432
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7jyWi81IkDM2AHFRUAohC

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-with-yesterday-comparison-45611432
```

Example prompt: What's the current crypto fear and greed index right now, and how does it compare to yesterday?

## When to prefer this

Choose this endpoint when you need a quick, single-call sentiment pulse on the crypto market with built-in day-over-day comparison. Ideal for trading bots, morning briefings, and sentiment-aware decision logic where knowing whether the market mood is improving or deteriorating since yesterday adds signal value.

## Known failure modes

- Upstream data source unavailable — may return 503 or stale data
- Rate limiting or payment failure returns 402 if USDC payment is not processed
- Index data may have a short delay and not reflect real-time market moves

## How this service works

Crypto Fear & Greed index with yesterday comparison

## Output

Returns the current Crypto Fear & Greed index numeric score and its label (e.g. Extreme Fear, Fear, Neutral, Greed, Extreme Greed), along with yesterday's equivalent score and label, enabling a direct day-over-day sentiment comparison.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "integer",
       "maximum": 30,
       "minimum": 1,
       "description": "Optional. Add this many days of daily history"
      }
     }
    }
   },
   "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-with-yesterday-comparison-45611432/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agenttoll-pi.vercel.app](https://www.zero.xyz/host/agenttoll-pi.vercel.app/llms.txt)