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Usenami Aggregate Depth Quote — Single Venue Crypto Perpetual
x402
Usenami Aggregate Depth Quote — Single Venue Crypto Perpetual is a paid API for AI agents from api.usenami.io, paid per call via x402, $0.01/call, status down (last checked 2026-10-18).
Returns best bid/ask plus precomputed slippage estimates at $1K, $5K, and $10K notional for a single crypto perpetual on a specified venue, giving execution-realistic cost insight beyond the top of book.
Price / call$0.01
Success—
StatusDown
How this service works
Sized-depth quote for one crypto perpetual on one venue: best bid/ask plus precomputed slippage at $1K/$5K/$10K notional — what your order actually costs, not just the top of book. $10K cap protects execution edge per DIS-022.
Output
Returns the best bid and best ask prices for the specified perpetual on the given venue, plus precomputed estimated slippage at three notional tiers ($1K, $5K, $10K), reflecting what an order would actually cost to execute given current order book depth. Capped at $10K notional per the DIS-022 execution-edge protection policy.
Example use cases
Pre-trade slippage check before large order
“Before I send a $10K buy on ETH-PERP on Binance, can you pull the depth quote so I can see the real slippage I'll eat, not just the top of book?”
Venue selection by execution cost
“I want to trade $5K of SOL-PERP — can you get me the depth quote and slippage estimate on Bybit so I can compare execution costs across venues?”
Algo bot real-cost signal ingestion
“Pull the aggregate depth quote for BTC-PERP on OKX, including slippage tiers at $1K, $5K, and $10K, so my trading bot can decide whether to enter the position now.”
Technical details
Endpoint
GEThttps://api.usenami.io/v1/orderbook/depth/aggregate/:venue/:symbol?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need execution-realistic cost data for a single specific venue rather than a cross-venue consolidated view. It is ideal for pre-trade analysis, algo signal ingestion, or venue comparison workflows where per-venue slippage at multiple notional tiers matters more than just the top-of-book spread. Prefer the single-venue aggregate depth endpoint over the top-of-book-only endpoint when market impact and slippage are relevant to the decision.
Side effects
- Unknown or unsupported venue returns 404 or empty result
- Symbol not tracked returns error or null data
- Order book data temporarily unavailable returns stale or error response
- Exceeding $10K notional cap returns an error per DIS-022 policy
- Authentication or payment failure (x402) returns 402 Payment Required
Tags
x402
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