Returns the catalog of perpetual futures venues Usenami tracks. Includes CEX (Binance, Bybit, OKX, etc.) and DEX (Hyperliquid, dYdX, HIP-3 sub-venues for RWA, etc.). Free endpoint, no payment required.

Returns last-update timestamps and freshness status for each tracked venue. Use this to verify that data is current before paying for a snapshot. Free endpoint, no payment required.

Returns current funding rates per venue for a given perp symbol, or all symbols if symbol is omitted. Covers 30+ CEX + DEX venues. Cost: $0.001 USDC per call (x402 on Base mainnet).

Returns the cross-venue funding-rate spread snapshot for a base ticker. Identifies the long-side (lowest rate) and short-side (highest rate) venues and reports the spread in basis points — the directional edge for a funding-rate arbitrage. Cost: $0.001 USDC per call.

Returns the oracle family classification for 30+ perp venues — useful for basis-risk awareness in cross-venue strategies. Venues sharing a price source (e.g. 'cex_aggregated', 'pyth_stork') tend to move together and offer no genuine arbitrage edge. Cost: $0.001 USDC.

Returns real-world asset perpetual coverage on Hyperliquid HIP-3 DEXes (6 sub-venues: cash, flx, km, vntl, xyz, hyna). Asset classes: stocks, metals, forex, commodities, indices, pre-IPO synthetics. Optionally filter by asset_class. Cost: $0.001 USDC per call.