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HALOWERK Price Round — Tick-Size Rounding Calculator
x402
HALOWERK Price Round — Tick-Size Rounding Calculator is a paid API for AI agents from handel.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).
Rounds a price to the nearest valid tick size using floor, ceil, or nearest mode with decimal-safe arithmetic
Price / call$0.002
Success—
StatusUnknown
How this service works
Preis auf Tick-Größe runden. Dezimalrechnung, nächster Tick mit halber Schrittweite aufwärts; kein stiller Tickverlust durch Stellenzahl. Alle Zahlen, Kurse und Vorgaben liefert der Aufrufer. Keine eigenen Kursdaten, kein Brokerzugriff, keine Ausführung. Rechenwerkzeug, keine Anlageberatung, keine Empfehlung.
Output
Returns the input price snapped to the nearest valid tick-size boundary using decimal-safe arithmetic, according to the specified rounding mode (floor, ceil, or nearest). No market data is fetched; the calculation is purely mathematical based on caller-supplied inputs.
Example use cases
Snap futures order price to tick grid
“I have a calculated futures price of 4823.17 and the tick size is 0.25 with 2 decimal digits — can you round it to the nearest valid tick using 'nearest' mode?”
Floor price for limit order placement
“Before I submit a limit buy order, round 99.983 down to the nearest tick of 0.01 with 2 decimal digits using 'floor' mode so I don't overpay.”
Ceil price for stop-loss alignment
“I need to set a stop-loss and want to round 1.23456 up to the next valid tick — tick size is 0.0005, digits 4, mode 'ceil'.”
Technical details
Endpoint
POSThttps://handel.halowerk.com/v1/rechner/price-round?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need deterministic, decimal-safe tick rounding for financial prices without access to a broker, exchange API, or market data feed. Ideal for pre-trade order preparation, strategy backtesting price snapping, or any workflow where you supply the price and tick parameters yourself. Prefer this over generic rounding utilities when tick-boundary accuracy and silent tick-loss prevention matter.
Side effects
- Invalid mode value (not floor/ceil/nearest) returns a validation error
- Price outside allowed range (< 0 or > 1e12) rejected
- tick_size outside allowed range (< 1e-12 or > 1e12) rejected
- digits outside 0–12 integer range rejected
- Missing required fields return a 400-level error
- Floating-point edge cases handled via decimal arithmetic, but extreme precision combinations may yield unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | string | |
| price | number | |
| digits | integer | |
| tick_size | number |
Tags
x402
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