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PerpCheck by YourAITools – Full Pre-Trade Hyperliquid Perp Validator
x402
PerpCheck by YourAITools – Full Pre-Trade Hyperliquid Perp Validator is a paid API for AI agents from api.youraitools.co, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).
Validates a Hyperliquid perpetual futures order before submission, returning a REJECT_LIKELY/CAUTION/OK verdict with sizing rules, funding cost estimates, liquidation estimates, and execution impact analysis.
Price / call$0.01
Success—
StatusUnknown
How this service works
Hyperliquid pre-trade risk check API. Full pre-trade check of a Hyperliquid perp order: everything in lite (verdict, rule issues with fixes) plus the isolated liquidation price and distance, taker impact and average fill from the live L2 book for market orders, funding carry per day (who pays), mark/oracle premium, open interest and size vs 24 h volume. Read-only; never places or signs orders. Fail-closed. Not financial advice; the exchange decides whether an order is accepted.
Output
Returns a JSON object with a top-level verdict (OK, CAUTION, or REJECT_LIKELY), lists of issues and warnings, current market data (mark price, oracle price, funding rate with APR and daily cost estimate, open interest, volume), execution impact (spread bps, estimated avg fill, book depth covered), liquidation price estimate with distance percentage, and all applicable exchange rules (size decimals, max leverage, min notional, price tick constraints). Also includes confidence level and a disclaimer that no order is placed.
Example use cases
Validate leveraged ETH short before placing
“I want to short ETH on Hyperliquid with 5x leverage and a notional of $500 using cross margin — can you run a pre-trade check and tell me if the order is likely to be accepted, what the spread looks like, and what my estimated liquidation price would be?”
Check funding cost before holding long position
“I'm thinking of going long SOL on Hyperliquid, isolated margin, 3x leverage, size 2 SOL — can you check the current funding rate, tell me what it'll cost me per day, and flag any issues with my order parameters?”
Verify limit order tick size and minimum notional
“Can you validate a limit long order on kPEPE on Hyperliquid — I want to buy at 0.00001234 with a notional of $50, cross margin, 1x leverage — and check if my price respects tick rules and whether I meet the minimum notional?”
Technical details
Endpoint
GEThttps://api.youraitools.co/perpcheck/v1/full?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent or user needs to validate a Hyperliquid perpetual futures order before submitting it — especially to catch REJECT_LIKELY scenarios (bad tick size, below minimum notional, leverage exceeded), estimate real-time funding costs, or assess liquidation risk. Prefer this over generic market data endpoints when you need the combined pre-trade ruleset check plus execution impact for Hyperliquid specifically.
Side effects
- Unknown or delisted coin ticker returns an error or sources_failed entry
- Invalid side value (not long/short/buy/sell) causes input validation rejection
- Providing both size and notional may cause ambiguity or error
- Price violating tick rules surfaces as an issue in the issues array
- Network or exchange data unavailability may reduce confidence or populate sources_failed
- Missing required fields (coin or side) returns a schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"coin": "BTC",
"side": "long",
"size": 0.001,
"tier": "full",
"rules": {
"szDecimals": 5,
"max_leverage": 40,
"only_isolated": false,
"min_notional_usd": 10,
"price_max_decimals": 1,
"price_max_sig_figs": 5,
"max_leverage_at_size": 40
},
"issues": [],
"margin": "cross",
"market": {
"mark": 81274,
"oracle": 81279.6,
"premium_bps": -0.69,
"day_volume_usd": 1978449099,
"open_interest_usd": 3634646602,
"size_vs_day_volume_pct": 0
},
"funding": {
"apr_pct": 10.95,
"direction": "you pay",
"hourly_rate": 0.0000125,
"est_cost_per_day_usd": 0.0244
},
"verdict": "OK",
"leverage": 10,
"warnings": [],
"execution": {
"mid": 81274.5,
"book_time": 1792783206472,
"spread_bps": 0.12,
"est_avg_fill": 81275,
"est_impact_bps": 0.06,
"book_depth_covered": 1
},
"checked_at": "2026-10-23T19:20:07.089Z",
"confidence": "high",
"disclaimer": "Not financial advice; the exchange decides whether an order is accepted. PerpCheck is a read-only pre-trade check: it never places, signs or holds orders, has no custody and never asks for keys.",
"order_type": "market",
"liquidation": {
"note": "cross margin: the real liquidation price depends on your whole account; this is the isolated-equivalent worst case",
"distance_pct": 8.86,
"estimate_isolated": 74072.5
},
"reduce_only": false,
"notional_usd": 81.27,
"sources_failed": []
}
}Tags
x402
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