# Vaunt ETH Trading Cost on Hyperliquid

> Vaunt ETH Trading Cost on Hyperliquid is a paid API for AI agents from vaunt-dispatch-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns real-fill execution quality metrics for ETH on Hyperliquid: slippage (p50/p90 bps), taker fee, fill time, fill rate, spread, round-trip cost, 1% depth, and funding APR — benchmarked against venue-class median.

## Facts

- Endpoint: GET https://vaunt-dispatch-production.up.railway.app/agent/x402/cost/ETH
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vaunt-eth-trading-cost-on-hyperliquid-f9a340bc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nMQFf31fPjjLll1NsAknz

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 vaunt-eth-trading-cost-on-hyperliquid-f9a340bc
```

Example prompt: What's the true cost of trading ETH on Hyperliquid right now — give me the real slippage (p50 and p90), taker fees, fill time, and round-trip cost based on Vaunt's actual live fills.

## When to prefer this

Choose this endpoint when you need ground-truth execution quality data for ETH on Hyperliquid based on real fills rather than theoretical quotes or order book snapshots. It is especially valuable for pre-trade cost modeling, venue selection decisions, or benchmarking execution quality against the venue median. Prefer it over generic market data APIs when you need IOC taker slippage and fill rate metrics specifically derived from live traded orders.

## Known failure modes

- Payment not received or insufficient USDC — 402 Payment Required
- Hyperliquid connectivity issue causing stale or unavailable data — 503 Service Unavailable
- No recent fills available to compute metrics — may return null or partial fields
- Rate limiting if too many calls in short succession — 429 Too Many Requests

## How this service works

True cost of trading ETH on Hyperliquid, measured on Vaunt's own IOC taker orders: slippage vs mid (p50/p90 bps), taker fee paid, wall-clock to fill, fill rate, against the venue-class median, plus spread, round-trip cost, depth within 1% and funding APR. Real fills, not quotes.

## Output

A structured response containing ETH-specific execution metrics derived from Vaunt's own real IOC taker orders on Hyperliquid: p50 and p90 slippage in basis points, taker fee paid, wall-clock time to fill, fill rate, spread, round-trip cost, order book depth within 1% of mid, funding APR, and a comparison against the venue-class median.

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vaunt-eth-trading-cost-on-hyperliquid-f9a340bc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vaunt-dispatch-production.up.railway.app](https://www.zero.xyz/host/vaunt-dispatch-production.up.railway.app/llms.txt)