# Crypto Market Pulse — Regime Signal

> Crypto Market Pulse — Regime Signal is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-31).

Returns a single-call crypto market snapshot with BTC/ETH/SOL spot prices, Hyperliquid funding APRs, Korea kimchi premium, Fear & Greed index, and a regime label (risk_on/neutral/risk_off) with plain-English reasons.

## Facts

- Endpoint: GET https://kr-x402-mvp.kgy5612.workers.dev/crypto/market-pulse?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-market-pulse-regime-signal-bd27105d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CH4LIpQXi6S2yoB9BXRED

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-market-pulse-regime-signal-bd27105d
```

Example prompt: What's the current crypto market regime — risk-on, neutral, or risk-off — and give me the BTC spot price, Hyperliquid funding APR, kimchi premium, and Fear & Greed reading all in one shot?

## When to prefer this

Choose this endpoint when an agent needs a single aggregated crypto market signal instead of making 4+ separate API calls for prices, funding rates, kimchi premium, and sentiment. At $0.004 per call it is significantly cheaper than assembling the same data from individual sources ($0.015+). Ideal for high-frequency trading agents, position-sizing logic, or any workflow that needs a quick regime check before executing on-chain actions.

## Known failure modes

- Upstream data source unavailable — stale or missing price/funding data returned
- Payment not settled via x402 — 402 Payment Required response
- Network timeout from Cloudflare Worker — 504 or empty response
- Kimchi premium unavailable if Korean exchange API is down
- Fear & Greed index missing if Alternative.me is unreachable

## How this service works

One-call crypto market regime for trading agents: BTC/ETH/SOL median spot + 24h change, Hyperliquid funding APR + open interest, Korea kimchi premium, Crypto Fear & Greed index, and a regime label (risk_on|neutral|risk_off) with plain reasons. Replaces 4 calls (prices+hl-funding+kimchi+sentiment, $0.015) for $0.004.

## Output

A JSON object containing: per-asset spot prices (BTC/ETH/SOL) and 24h change percentages; Hyperliquid funding APR and open interest per asset; Korea kimchi premium percentage; Fear & Greed index numeric value and label; a regime string (risk_on, neutral, or risk_off); an array of plain-English reason strings explaining the regime; and an ISO 8601 updated_at timestamp.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "kimchi": {
   "BTC": {
    "premium_pct_fx": 1.15
   }
  },
  "prices": {
   "BTC": {
    "price_usd": 80867.7,
    "change_24h_pct": 0.8
   }
  },
  "regime": "neutral",
  "funding": {
   "BTC": {
    "funding_apr_pct": 9.1,
    "open_interest_usd": 2426000000
   }
  },
  "reasons": [
   "Fear & Greed 51 Neutral",
   "BTC 24h +0.8%",
   "BTC funding APR 9.1%"
  ],
  "fear_greed": {
   "label": "Neutral",
   "value": 51
  },
  "updated_at": "2026-10-29T08:30:00Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-market-pulse-regime-signal-bd27105d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kr-x402-mvp.kgy5612.workers.dev](https://www.zero.xyz/host/kr-x402-mvp.kgy5612.workers.dev/llms.txt)