{"slug":"api-x402node-dev-market-basis-f15aa4","title":"Perpetual premium and basis for a symbol","host":"api.x402node.dev","method":"GET","resource":"https://api.x402node.dev/market/basis","category":"market","description":"Perpetual premium and basis for a symbol: OKX perp mark price versus the spot index, returning the absolute basis, premium percent and an interpretation of perp positioning. Live data for basis trades, premium monitoring and spot-perp divergence. perp premium, spot perp basis, mark vs index, contang","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":503,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"symbol":"string"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"symbol":{"description":"coin symbol, e.g. BTC, ETH (default BTC)","type":"string"}},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-11","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":503,"error":null}],"description_full":"Perpetual premium and basis for a symbol: OKX perp mark price versus the spot index, returning the absolute basis, premium percent and an interpretation of perp positioning. Live data for basis trades, premium monitoring and spot-perp divergence. perp premium, spot perp basis, mark vs index, contango Accepts payment on Base or Solana — either network works.","last_updated":"2026-10-10T16:54:11.69Z","schemes":["exact"]}