Contract Specifications
TxFlow perpetuals are linear derivatives with no expiration date. They track the underlying spot asset through hourly funding payments rather than a settlement date.
Specification
| Parameter | Specification |
|---|---|
| Instrument type | Linear perpetual |
| Contract size | 1 unit of the underlying spot asset |
| Underlying asset | TxFlow oracle index of the spot asset |
| Initial margin fraction | 1 / (user-selected leverage) |
| Mark price | see Mark vs. Oracle Price |
| Delivery / expiration | none — hourly funding instead |
| Account type | cross-margin or isolated margin, per wallet |
| Position and order limits | see Position & Order Limits |
Live per-market values — tick size, lot size, maximum leverage, and the current margin tiers — come from the perpMeta and perpMetaDetail endpoints rather than this page. See perpMeta and perpMetaDetail; treat the API as authoritative, since governance can retune these parameters.