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OCX is an on-chain derivatives exchange. You trade perpetuals, options, dated futures, and spot from one account, funded in USDC, against a central limit order book with institutional reference pricing sourced from the CME markets. Every product is reachable through a single public API gateway. You sign in with your wallet, move collateral between venue buckets, and trade — from a browser, a bot, or an autonomous agent.

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Who OCX is for

Traders

Trade perps, options, futures, and spot with live order books, marks, and a fitted volatility surface.

Developers

Build on a clean REST + streaming (SSE) API. Public market data needs no credentials.

Market makers & agents

Quote programmatically with API keys, bulk quote replacement, and real-time fill streams.

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What you can trade

Perpetual swaps that track an underlying index, with a periodic, capped funding mechanism that tethers the perp price to the underlying.

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How it fits together

Funds live in four buckets — wallet, perps, options, and spot — and move only by explicit action. You deposit USDC on-chain into wallet, transfer into a venue to trade, and transfer back to wallet to withdraw.
All monetary and size values in the API are decimal strings to preserve precision. Never parse them as floats.

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Where to go next

Architecture

A high-level view of the exchange, matching, market data, and the API surface.

Authentication

Sign in with your wallet (SIWE) and provision API keys for automation.

Quickstart

Authenticate and place your first read and first order in minutes.

Methodology

How OCX sources data and prices perps, options, and futures.