{"slug":"api-usenami-io-v1-orderbook-depth-venue-symbol-e0af03","title":"Depth quote for one crypto perp on ONE named venue","host":"api.usenami.io","method":"GET","resource":"https://api.usenami.io/v1/orderbook/depth/:venue/:symbol","category":"market","description":"Depth quote for one crypto perp on ONE named venue: best bid/ask, depth per side, and est_slippage_for_size_usd_bps — the cost of filling size_usd here, in BASIS POINTS over the mid, not dollars. On a book deep enough to fill at the touch it equals half the spread and is the same for $1K/$5K/$10K; o","price_listed":0.002,"price_asked":null,"state":"no_terms","state_label":"Answers HTTP 410 without x402 payment terms","checks_7d":1,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":2,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","pathParams":{"symbol":"BTC","venue":"hyperliquid"},"queryParams":{"size_usd":{"description":"Notional size. Default 10000.","enum":[1000,5000,10000],"required":false,"type":"integer"}},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"method":{"type":"string"},"pathParams":{"type":"object"},"type":{"type":"string"}},"required":["type","method"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":410,"valid_402":false,"asked_usdc":null,"price_match":null,"latency_ms":782,"error":null}],"description_full":"Depth quote for one crypto perp on ONE named venue: best bid/ask, depth per side, and est_slippage_for_size_usd_bps — the cost of filling size_usd here, in BASIS POINTS over the mid, not dollars. On a book deep enough to fill at the touch it equals half the spread and is the same for $1K/$5K/$10K; on a thinner book it grows with size. Equal values across sizes mean the book covers you, not that size_usd was ignored. All venues: /v1/orderbook/multi-venue-slippage. $10K cap per DIS-022.","last_updated":"2026-09-12T19:57:43.551Z","schemes":["exact"]}