# ADH Crypto Fear & Greed Index

> ADH Crypto Fear & Greed Index is a paid API for AI agents from agentdatum.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the current and historical Crypto Fear & Greed Index (up to 90 days), including daily values, labels, 30-day average, and 90-day min/max.

## Facts

- Endpoint: GET https://agentdatum.com/api/v1/d/crypto-fear-greed
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/adh-crypto-fear-greed-index-19822a7d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Aa3X3GMkwDKxCsvyZwxdq

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 adh-crypto-fear-greed-index-19822a7d
```

Example prompt: What's the current crypto fear and greed index — pull the latest value plus the 30-day average and tell me whether the market is in fear or greed right now.

## When to prefer this

Choose this endpoint when you need a pre-cleaned, sourced, and contextualized Crypto Fear & Greed time series with 90-day history, 30-day average, and min/max stats in a single call — rather than calling alternative.me directly or scraping it yourself. Ideal for agents building daily briefings, trade signal pipelines, or market sentiment monitors that need reliable provenance metadata alongside the raw numbers.

## Known failure modes

- Payment not settled via x402 — 402 response with payment details required
- Upstream alternative.me data unavailable — may return stale or partial dataset
- Network timeout if alternative.me API is slow
- Malformed response if data collection timestamp is delayed

## How this service works

ADH 金融情报层：把 239 个原始数据源洗成带实体解析、时间同步、溯源与派生结论的情报（宏观regime / 加密尽调 / 事件窗口），免费注入你的 AI 上下文。Agent 走 x402 结算，人类订阅（PayPal）即将上线。

## Output

Returns a JSON object with: latest date, numeric fear/greed value (0-100), sentiment label (e.g. 'Fear', 'Greed'), an array of up to 90 daily data points (date, value, label), 30-day average, 90-day maximum, 90-day minimum, data source attribution (alternative.me), data type, and collection timestamp.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "raw": {
   "data": [
    {
     "date": "2026-08-14",
     "label": "Fear",
     "value": 29
    },
    {
     "date": "2026-08-14",
     "label": "Fear",
     "value": 29
    }
   ],
   "days": 90,
   "latest": {
    "date": "2026-08-14",
    "label": "Fear",
    "value": 29
   },
   "avg_30d": 27.9,
   "max_90d": 34,
   "min_90d": 8
  },
  "source": "alternative.me",
  "data_type": "区块链",
  "collected_at": "2026-08-14T00:43:01Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/adh-crypto-fear-greed-index-19822a7d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdatum.com](https://www.zero.xyz/host/agentdatum.com/llms.txt)