Api Endpoint

api.usenami.io

Oracle price-source family classification across tracked crypto perp venues — which venues derive their index price from the same upstream feed. Basis-risk awareness for cross-venue and funding-arb strategies: two venues sharing an oracle family will not diverge independently, so a spread between them is not the hedge it looks like.

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/snapshot
MIME type: application/json
First seen: 2026-10-16T02:52:34.600Z
Last seen: 2026-11-02T12:32:53.427Z
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: 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x1538726707212F4dB3EB67cEc0910422A310475c"
  }
]

Observed health

Status: Healthy
Latest latency: 1597 ms
Average latency: 1879 ms
HTTP status: 402
Last checked: 2026-11-02T12:32:53.421Z
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,
    "methodology": "per-venue funding + annualized_carry_pct + structure + open_interest + volume_24h + mark_price from one freshness-bounded read",
    "items": [
      {
        "venue": "binance",
        "asset_class": "crypto",
        "funding_rate": 0.0001,
        "funding_interval_hours": 8,
        "annualized_carry_pct": 10.95,
        "structure": "contango",
        "open_interest": 97100,
        "volume_24h": 7590000000,
        "mark_price": 64000,
        "updated_at": "2026-06-26T16:00:00Z"
      }
    ]
  }
}