Index onlineMerchant portal
Api Endpoint

api.usenami.io

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.

Open interactive test console

Offering

Provider
api.usenami.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.usenami.io/v1/perp/funding-spread
MIME type
application/json
First seen
2026-10-16T02:52:34.600Z
Last seen
Tags
Funding, perpetual, Trading, multi-venue, market-data

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x1538726707212F4dB3EB67cEc0910422A310475c"
  }
]

Observed health

Status
Healthy
Latest latency
761 ms
Average latency
1613 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "method": {
      "type": "string"
    }
  },
  "required": [
    "type",
    "method"
  ]
}

Output schema

{
  "type": "json",
  "example": {
    "ticker": "BTC",
    "venues_count": 18,
    "spread": {
      "ticker": "BTC",
      "long_venue": "dydx",
      "long_rate": -0.0001,
      "short_venue": "binance",
      "short_rate": 0.0003,
      "spread_bps": 4,
      "updated_at": "2026-05-17T20:00:00Z",
      "short_interval_hours": 8,
      "long_interval_hours": 1,
      "normalized_spread_8h_bps": 11,
      "apr_spread_pct": 120.45
    }
  }
}