Markets & Assets

Environment and market availability

Market availability can differ between environments. Discover the markets enabled in your target environment through the API rather than hard-coding a market list.

Discovering markets at runtime

Enumerate the live perp markets and their parameters from the perpMarketDefinitions endpoint rather than hard-coding a list — new markets are added over time and per-market parameters can change. Each perp market has a symbol ending in RUSDPERP and a marketId.

Public configuration and live values

Use the REST endpoints below with your environment's base URL. These read-only requests do not require a wallet signature. Market definitions provide trading constraints; market summaries provide current calculated values.

Information	Public source	Fields
Perpetual market identity, order increments and risk parameters	GET /v2/perpMarketDefinitions	symbol, marketId, minOrderQty, qtyStepSize, tickSize, initialMarginParameter, liquidationMarginParameter, maxLeverage, oiCap
Current perpetual mark price and funding rate	GET /v2/perpMarket/{symbol}/summary or GET /v2/perpMarkets/summary	markPrice, fundingRate, updatedAt, pricesUpdatedAt

For example, retrieve ETH's current summary:

curl --fail --silent --show-error \
  https://api.reya.xyz/v2/perpMarket/ETHRUSDPERP/summary

For streaming updates, use the corresponding market-summary channels in the WebSocket Info API. fundingRate is an hourly percentage, while markPrice is a price in rUSD; see Funding and Mark Price for interpretation.

API 3.6.2 does not expose the full pricing configuration: the impact notional, premium clamp, blending weights, EMA coefficient, funding interest term/clamp/cap, and settlement price-deviation band are not returned by these endpoints. The numerical examples in the pricing guides illustrate the formulas; do not treat them as current settings for every market. Use reported live values and handle order and settlement outcomes explicitly.

Collateral

The quote / counter currency is USDC, structured on-chain as rUSD — a wrapped-USDC token (1:1). Balances and fees are denominated in rUSD.

Open-interest caps

Each market has a global open-interest cap, exposed as the oiCap field on the perp market definition, set by governance and enforced on every trade — a trade that would push the market's aggregate OI past the cap is rejected. Key properties:

• It's an aggregate cap across all accounts in the market — not a per-account or per-position limit.

• It does not scale with leverage or position size; margin requirements are the only leverage-related control.

• Read the current oiCap per market from the perpMarketDefinitions endpoint — values are revised as markets are (re)listed.

There are no per-account position limits — your size is bounded only by your margin and the market's OI cap.