> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ocx.global/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> OCX is an on-chain exchange for perpetuals, options, dated futures, and spot — with institutional-grade pricing and a single public API.

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.

## Who OCX is for

<CardGroup cols={3}>
  <Card title="Traders" icon="chart-candlestick">
    Trade perps, options, futures, and spot with live order books, marks, and a
    fitted volatility surface.
  </Card>

  <Card title="Developers" icon="code">
    Build on a clean REST + streaming (SSE) API. Public market data needs no
    credentials.
  </Card>

  <Card title="Market makers & agents" icon="robot">
    Quote programmatically with API keys, bulk quote replacement, and real-time
    fill streams.
  </Card>
</CardGroup>

## What you can trade

<Tabs>
  <Tab title="Perpetuals">
    Perpetual swaps that track an underlying index, with a periodic, capped
    funding mechanism that tethers the perp price to the underlying.
  </Tab>

  <Tab title="Options">
    A full option chain per underlying — calls and puts across strikes and
    expiries — with OCX-computed marks, implied volatility, and Greeks. Trade
    single instruments or multi-leg strategies.
  </Tab>

  <Tab title="Futures">
    Dated futures contracts marked to fair value from spot plus cost of carry,
    converging to the underlying at expiry.
  </Tab>

  <Tab title="Spot">
    Spot markets settled in USDC, running on the same central limit order book
    engine as options.
  </Tab>
</Tabs>

## 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.

<Note>
  All monetary and size values in the API are decimal **strings** to preserve
  precision. Never parse them as floats.
</Note>

## Where to go next

<CardGroup cols={2}>
  <Card title="Architecture" icon="sitemap" href="/get-started/architecture">
    A high-level view of the exchange, matching, market data, and the API surface.
  </Card>

  <Card title="Authentication" icon="key" href="/get-started/authentication">
    Sign in with your wallet (SIWE) and provision API keys for automation.
  </Card>

  <Card title="Quickstart" icon="rocket" href="/get-started/quickstart">
    Authenticate and place your first read and first order in minutes.
  </Card>

  <Card title="Methodology" icon="function" href="/methodology/overview">
    How OCX sources data and prices perps, options, and futures.
  </Card>
</CardGroup>