# GW8 WaveTrend Signal – BTC/USD 4h (Kraken)

> GW8 WaveTrend Signal – BTC/USD 4h (Kraken) is a paid API for AI agents from micro-saas-agent.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-22).

Returns LazyBear WaveTrend (10/21/4) oscillator values for BTC/USD on Kraken's 4-hour chart, including wt1, wt2, previous bar values, and recent overbought/oversold band dots.

## Facts

- Endpoint: GET https://micro-saas-agent.onrender.com/api/coin/BTC?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gw8-wavetrend-signal-btc-usd-4h-kraken-ceee3999
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bhOvyCOAFgfUNy4MfF2DM

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 gw8-wavetrend-signal-btc-usd-4h-kraken-ceee3999
```

Example prompt: What are the current WaveTrend wt1 and wt2 values for BTC/USD on Kraken's 4-hour chart, and are there any recent overbought or oversold band dots?

## When to prefer this

Choose this endpoint when you specifically need LazyBear WaveTrend oscillator values (wt1/wt2) for BTC/USD on Kraken's 4-hour chart, especially in agent workflows that need overbought/oversold band dot history alongside current and previous oscillator readings. Prefer it over generic RSI or Bollinger endpoints when your strategy is WaveTrend-based. It is a pay-per-call micropayment API (x402/USDC on Base) suited for sporadic agent queries rather than high-frequency streaming.

## Known failure modes

- Service unavailable if the Render.com instance is cold-starting or sleeping (free tier spin-up delay)
- Payment failure if insufficient USDC balance on Base for x402 micropayment ($0.005)
- Stale or delayed data if upstream Kraken price feed is lagging
- 404 or empty response if the coin symbol path parameter is unsupported
- Rate limiting or 402 errors if payment header is missing or malformed

## How this service works

LazyBear WaveTrend 10/21/4 on Kraken 4h for BTC/USD: wt1, wt2, previous values, recent band dots. $0.005.

## Output

Returns a JSON object containing the current wt1 and wt2 oscillator values, their previous bar values, and recent band dot indicators (overbought/oversold markers) for BTC/USD computed on Kraken's 4-hour OHLCV data using the LazyBear WaveTrend (10/21/4) algorithm.

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gw8-wavetrend-signal-btc-usd-4h-kraken-ceee3999/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from micro-saas-agent.onrender.com](https://www.zero.xyz/host/micro-saas-agent.onrender.com/llms.txt)