Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453

Cross-venue funding-rate spread for one crypto perpetual — the highest- and lowest-paying

Cross-venue funding-rate spread for one crypto perpetual — the highest- and lowest-paying venues and the spread in bps, across major CEX and DEX venues (Binance, Bybit, OKX, Hyperliquid …). `spread_bps` is the RAW rate difference, the same quantity and name as on `/v1/perp/arbitrage/funding`; `normalized_spread_8h_bps` scales both legs to 8h, the comparable one, since venues quote on 1h/4h/8h. Leg intervals ship with the row; normalized is null when a schedule is unknown, never defaulted.

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1000 (raw units)
price
2
calls / 30d
1
unique payers
2026-09-12
updated

Provider

api.usenami.io · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x1538726707212F4dB3EB67cEc0910422A310475c",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "canonical_id": {
            "description": "Disambiguates a ticker that names two unrelated assets; a 409 on the ticker alone names the candidates.",
            "required": false,
            "type": "string"
          },
          "ticker": {
            "description": "Base ticker (e.g. BTC, ETH). Required.",
            "required": true,
            "type": "string"
          }
        },
        "type": "http"
      },
      "output": {
        "example": {
          "spread": {
            "apr_spread_pct": 120.45,
            "long_interval_hours": 1,
            "long_rate": -0.0001,
            "long_venue": "dydx",
            "normalized_spread_8h_bps": 11,
            "short_interval_hours": 8,
            "short_rate": 0.0003,
            "short_venue": "binance",
            "spread_bps": 4,
            "ticker": "BTC",
            "updated_at": "2026-05-17T20:00:00Z"
          },
          "ticker": "BTC",
          "venues_count": 18
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "method": {
              "type": "string"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://api.usenami.io/v1/perp/funding-spread"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.usenami.io/v1/perp/funding-spread");
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://api.usenami.io/v1/perp/funding-spread")
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/6428.json, and this resource appears in /discovery/resources and /discovery/search.