{"resource":"https://api.usenami.io/v1/perp/basis","service":"Usenami","areas":["crypto_prices"],"answering":true,"http_status":402,"latency_ms":507,"price_usdc":0.005,"buyers_30d":1,"calls_30d":1,"description":"Per-venue basis for one crypto perpetual — mark versus index price, basis_bps = (mark−index)/index×10000, and contango/backwardation structure, across tracked CEX and DEX venues. Every venue has an index except Crypto.com, Variational and d","id":"410b18f152cc","category":"Crypto prices","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/410b18f152cc"}