# HorizonPulse Market Pulse

> HorizonPulse Market Pulse is a paid API for AI agents from horizonpulse.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-29).

Returns real-time BTC, ETH, and SOL spot prices along with momentum indicators, overall market sentiment, and a trading signal

## Facts

- Endpoint: GET https://horizonpulse.dev/api/pulse?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/horizonpulse-market-pulse-4a37c0a2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QPNX5XFIXrexhfPhlUdKd

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 horizonpulse-market-pulse-4a37c0a2
```

Example prompt: What's the current market pulse for BTC, ETH, and SOL — give me their spot prices, momentum, sentiment, and whether the signal is bullish or bearish right now.

## When to prefer this

Choose HorizonPulse when you need a pre-computed, opinionated market snapshot for the top three cryptocurrencies (BTC, ETH, SOL) in a single call — especially when you want momentum and sentiment signals already derived rather than raw OHLCV data. Prefer this over raw exchange APIs when you need a lightweight, low-cost pulse check rather than full order book or historical data.

## Known failure modes

- CoinGecko upstream outage returns stale or unavailable data
- Rate limiting may occur at high call volumes
- Payment failure (x402) if USDC balance insufficient results in 402 response with no data
- Empty or null signal if insufficient market data to compute momentum

## How this service works

BTC/ETH/SOL spot prices with momentum, overall sentiment, and signal from CoinGecko

## Output

A market snapshot object containing spot prices for BTC, ETH, and SOL sourced from CoinGecko, along with momentum metrics, an overall market sentiment score or label, and a directional trading signal (e.g. bullish/bearish/neutral).

## 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",
     "description": "Horizon Pulse market snapshot"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "assets": {
   "BTC": {
    "momentum": "neutral",
    "priceUsd": 0,
    "change24hPct": 0
   }
  },
  "overall": {
   "signal": "hold",
   "momentum": "neutral",
   "sentiment": "neutral"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/horizonpulse-market-pulse-4a37c0a2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from horizonpulse.dev](https://www.zero.xyz/host/horizonpulse.dev/llms.txt)