> For the complete documentation index, see [llms.txt](https://ocx.gitbook.io/ocx-doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ocx.gitbook.io/ocx-doc/ocx/readme.md).

# README

Welcome to the OCX documentation.

OCX is a unified derivatives exchange for on-chain traders. One USDC collateral pool, one login, and four trading products — spot, perpetuals, quarterly futures, and European options — all under a single cross-margin system.

## What makes OCX different

* **Futures-anchored perpetuals.** OCX perpetual indices are derived from the futures curve, not from spot. This aligns perp pricing with institutional forward curves and removes the basis drift common to spot-anchored perps.
* **Cross-margin by default.** Your USDC collateralises every product. Spot, perp, future, and option positions net against one another across the same underlying, with correlation credits between related underlyings.
* **Institutional-grade risk.** A SPAN-style risk engine with 16 scenarios per underlying, proper Black-76 greeks for options, and pre-computed risk arrays that refresh every five seconds for sub-millisecond order checks.
* **On-chain custody, off-chain speed.** USDC custody lives in a vault on Base. Matching and position keeping happen off-chain, with withdrawals settled back on-chain via an automated keeper.
* **Programmable trading.** Every user can mint scoped API keys (read or trade), optionally restricted to specific IPs, with a tamper-evident audit trail.

## How to use this documentation

* New to OCX? Start with the **Product** section to learn what OCX offers and how its pricing and margin model works.
* Ready to trade? Follow **Getting Started** to connect your wallet, deposit USDC, and place your first order.
* Building a bot or integrating programmatically? Jump to **Authentication** and the **API Reference**.

## Base URLs

| Environment          | Base URL                     |
| -------------------- | ---------------------------- |
| Production REST API  | `https://api.ocx.global`     |
| Production WebSocket | `wss://api.ocx.global`       |
| Market data / charts | `https://perpapi.ocx.global` |

All endpoints documented in the API Reference are relative to `https://api.ocx.global` unless stated otherwise.

## Support

* Product updates and status are published in the **Changelog**.
* For integration questions, reach out to the team through your usual channel.


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