# Crypto OHLCV Klines with Precomputed Indicators

> Crypto OHLCV Klines with Precomputed Indicators is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Returns OHLCV candlestick data for major USDT crypto pairs with precomputed technical indicators (EMA20, EMA50, RSI14, ATR14, trend, pullback zone)

## Facts

- Endpoint: GET https://kr-x402-mvp.kgy5612.workers.dev/api/v1/coinank/kline/lists?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-ohlcv-klines-with-precomputed-indicators-47d3cf3d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AvBbA4SVKZQELxz07FNmr

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-ohlcv-klines-with-precomputed-indicators-47d3cf3d
```

Example prompt: Pull the last 100 hourly candles for BTC against USDT and tell me the current RSI14, EMA20, EMA50, trend direction, and whether we're in a pullback zone right now.

## When to prefer this

Choose this endpoint when your trading agent needs OHLCV candle data AND technical indicators in a single call without doing any math locally. Ideal when you need EMA20/50 crossover signals, RSI overbought/oversold checks, ATR-based volatility assessment, trend classification, or pullback zone detection for major USDT pairs. Prefer over raw exchange APIs when you want to skip indicator computation overhead in your agent logic.

## Known failure modes

- Invalid symbol returns error — must be a supported major USDT pair (BTC, ETH, SOL, BNB, XRP, DOGE, ADA, AVAX, LINK, SUI, etc.)
- Invalid interval value (not in 1m|5m|15m|1h|4h|1d) returns validation error
- Limit out of range (below 10 or above 500) returns validation error
- Payment failure via x402 (insufficient USDC balance) results in 402 response
- Upstream Binance data unavailability may cause delayed or stale response

## How this service works

Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.

## Output

Returns a JSON object with: total candle count (n), data source (binance), symbol, interval, array of OHLCV candles [{t,o,h,l,c,v}] ordered oldest-to-newest, last close price, change_pct over the window, and precomputed indicators: EMA20, EMA50, RSI14, ATR14 (absolute and percent), trend (up/down/range), and pullback zone bounds (low, high, in_zone boolean).

## 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": {
      "limit": {
       "type": "integer",
       "maximum": 500,
       "minimum": 10,
       "description": "Number of candles (default 100)"
      },
      "symbol": {
       "type": "string",
       "examples": [
        "BTC",
        "ETH",
        "SOLUSDT"
       ],
       "description": "Base asset or pair (default BTC); quote is USDT"
      },
      "interval": {
       "enum": [
        "1m",
        "5m",
        "15m",
        "1h",
        "4h",
        "1d"
       ],
       "type": "string",
       "description": "Candle size (default 1h)"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "n": 100,
  "last": 80436.6,
  "source": "binance",
  "symbol": "BTCUSDT",
  "candles": [
   {
    "c": 80305.21,
    "h": 80418.67,
    "l": 79916,
    "o": 80058.01,
    "t": "2026-10-29T13:00:00Z",
    "v": 792.98
   }
  ],
  "interval": "1h",
  "change_pct": 1.8,
  "indicators": {
   "zone": {
    "low": 79900.9,
    "high": 80519.9,
    "in_zone": true
   },
   "atr14": 412.7,
   "ema20": 80210.4,
   "ema50": 79880.1,
   "rsi14": 58.3,
   "trend": "up",
   "atr14_pct": 0.51
  },
  "updated_at": "2026-10-29T14:20:00Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-ohlcv-klines-with-precomputed-indicators-47d3cf3d/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)