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mirrored listing x402 eip155:8453

True cost of trading ETH on Hyperliquid, measured on Vaunt's own IOC taker orders: slippag

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.

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1000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-10
updated

Provider

vaunt-dispatch-production.up.railway.app · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xf4b1093a9498523e18c484989df5157012abb85f",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "asset": "ETH",
          "dataset": "vaunt.cost",
          "liquidity": {
            "as_of": "2026-09-09",
            "depth_within_1pct_usd": 4164926,
            "funding_apr_pct": 8.7,
            "perp_spread_pct": 0.01,
            "round_trip_cost_pct": 0.11
          },
          "our_fills": {
            "days": 21,
            "fill_rate_pct": 100,
            "fills": 38,
            "last_fill": "2026-09-09",
            "latency_ms_p50": 1380,
            "since": "2026-07-16",
            "slippage_bps_p50": 1.2,
            "slippage_bps_p90": 5.9,
            "taker_fee_bps_mean": 4.5
          },
          "venue_class": {
            "class": "hyperliquid:perp",
            "latency_ms_p50": 1400,
            "slippage_bps_p50": 1.7,
            "slippage_bps_p90": 7.9,
            "taker_fee_bps_mean": 4.5
          }
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "builder-code": {
    "info": {
      "s": [
        "cdp_sdk_server"
      ]
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "additionalProperties": false,
      "properties": {
        "a": {
          "description": "App builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        },
        "s": {
          "description": "Service builder codes",
          "items": {
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          },
          "maxItems": 11,
          "type": "array"
        },
        "w": {
          "description": "Wallet builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        }
      },
      "type": "object"
    }
  },
  "eip2612GasSponsoring": {},
  "erc20ApprovalGasSponsoring": {}
}

Use it

curl

curl "https://vaunt-dispatch-production.up.railway.app/agent/x402/cost/ETH"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://vaunt-dispatch-production.up.railway.app/agent/x402/cost/ETH");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://vaunt-dispatch-production.up.railway.app/agent/x402/cost/ETH")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/14525.json, and this resource appears in /discovery/resources and /discovery/search.