# finanz.halowerk.com Crypto Quote Snapshot

> finanz.halowerk.com Crypto Quote Snapshot is a paid API for AI agents from finanz.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).

Queries multiple public crypto exchanges for a single trading pair and returns per-venue quotes (last price, bid, ask, spread, 24h high/low/volume, data age) plus cross-venue analytics: median price, inter-venue spread in basis points, and outlier detection.

## Facts

- Endpoint: POST https://finanz.halowerk.com/v1/quote-snapshot?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/finanz-halowerk-com-crypto-quote-snapshot-c035b940
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aMCDK2o9MVkT5jTmH3BGL

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 finanz-halowerk-com-crypto-quote-snapshot-c035b940 -d '<json body>'
```

Example prompt: What's the current price of BTC/USDT across all exchanges — show me each venue separately with bid, ask, spread, and 24h volume, and tell me which one is the outlier and what the median price is.

## When to prefer this

Choose this endpoint when you need a multi-venue aggregated view of a crypto trading pair rather than a single exchange's data. It is especially useful for price discovery, cross-venue arbitrage detection, best execution analysis, or detecting price manipulation/outliers. Prefer it over single-exchange APIs when you need the median price or inter-venue spread as computed metrics.

## Known failure modes

- Unknown or unsupported trading pair returns an error or empty venue list
- Exchange APIs temporarily unavailable may result in missing or stale data for specific venues
- Very illiquid pairs may return zero volume or missing bid/ask on some venues
- Network timeout if exchange APIs are slow, resulting in partial results
- Invalid pair format (e.g. wrong delimiter or casing) may cause a 400 error

## How this service works

Queries public crypto exchanges for one trading pair and returns each venue separately with its last price, bid, ask, spread in basis points, 24-hour high, low and volume, and the age of the value in milliseconds. On top of the raw quotes it computes what a single venue cannot tell you: the median across venues, the spread between the cheapest and dearest venue in basis points, and which venue is the outlier.

## Output

A structured response containing one record per exchange venue with: last traded price, best bid, best ask, spread in basis points, 24-hour high and low, 24-hour volume, and the age of the data in milliseconds. Additionally includes cross-venue computed fields: the median price across all venues, the spread between the cheapest and most expensive venue in basis points, and identification of the outlier venue.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "symbol": {
   "type": "string",
   "maxLength": 20,
   "minLength": 3,
   "description": "Pair as BASE/QUOTE, e.g. BTC/USDT or ETH/USD."
  },
  "venues": {
   "type": "array",
   "items": {
    "enum": [
     "binance",
     "kraken",
     "coinbase"
    ],
    "type": "string"
   },
   "description": "Which venues to ask. All of them if omitted."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/finanz-halowerk-com-crypto-quote-snapshot-c035b940/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from finanz.halowerk.com](https://www.zero.xyz/host/finanz.halowerk.com/llms.txt)