# Lumi Trades Crypto Fear & Greed Index

> Lumi Trades Crypto Fear & Greed Index is a paid API for AI agents from api.lumitrades.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-28).

Returns the CoinMarketCap Fear & Greed index for crypto markets, including current value, changes vs yesterday/last week/last month, yearly high/low, and a 30-day daily series refreshed every 30 minutes.

## Facts

- Endpoint: GET https://api.lumitrades.io/v1/fear-greed?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lumi-trades-crypto-fear-greed-index-12a903ea
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LgLcy3Bf4RheHRlv4VW8y

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 lumi-trades-crypto-fear-greed-index-12a903ea
```

Example prompt: What's the current CoinMarketCap Fear & Greed index for crypto, and how has sentiment changed compared to yesterday and last week? Also show me the 30-day trend.

## When to prefer this

Choose this endpoint when you need the authoritative CoinMarketCap Fear & Greed index with full historical context (30-day series, yearly high/low, and multi-period change deltas) in a single call. Prefer it over general sentiment endpoints when you specifically need the standardized CMC index value with freshness guarantees and transparent staleness signaling. It is cheaper than broader sentiment bundles when you only need the Fear & Greed metric.

## Known failure modes

- Bad input parameters — not charged, returns error JSON
- Stale data (index not refreshed in time) — not charged, returns stale indicator
- API unavailable or CoinMarketCap data feed disruption — may return 503 or error JSON
- Payment failure via x402 — call not executed, no charge

## How this service works

CoinMarketCap Crypto Fear and Greed index (market sentiment): current value and classification, change versus yesterday, last week and last month, yearly high and low, and a 30-day daily series. Refreshed every 30 minutes. Use when an agent needs a sentiment gauge with recent history rather than a single reading. Payable in USDC on Base or Stellar, or XRP, RLUSD or USDC on the XRP Ledger. Not charged on stale data.

## Output

A JSON object containing: current Fear & Greed index value and classification (e.g. 'Fear', 'Extreme Greed'), changes vs yesterday, last week, and last month, yearly high and low, a 30-day array of daily values, the data source (CoinMarketCap), freshness metadata (as_of, data_age_seconds, next_update, stale_after), and payment confirmation details (payer address, transaction hash, amount, network).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "kind": "fear_greed",
  "as_of": "2026-10-23T11:00:00Z",
  "value": 38,
  "change": {
   "vs_last_week": 6,
   "vs_yesterday": -4,
   "vs_last_month": -15
  },
  "source": "CoinMarketCap",
  "payment": {
   "asset": "USDC",
   "payer": "0x12ab...89cd",
   "amount": "0.003",
   "network": "eip155:8453",
   "transaction": "0x5f0c...e41a"
  },
  "series_30d": [
   {
    "date": "2026-10-22",
    "value": 42
   }
  ],
  "next_update": "2026-10-23T17:00:00Z",
  "stale_after": "2026-10-23T17:00:00Z",
  "classification": "Fear",
  "data_age_seconds": 600
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lumi-trades-crypto-fear-greed-index-12a903ea/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.lumitrades.io](https://www.zero.xyz/host/api.lumitrades.io/llms.txt)