# MIAXdx Trading API

**Canonical:** https://apis.io/apis/ledgerx/trading/  
**Provider:** LedgerX (MIAX Derivatives Exchange) — https://apis.io/providers/ledgerx/  
**Base URL:** https://trade.ledgerx.com  
**Documentation:** https://docs.miaxdx.com/reference/open-orders

MIAXdx Trading API is one of 2 APIs that [LedgerX (MIAX Derivatives Exchange)](https://apis.io/providers/ledgerx/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Trading, Order Entry, and Derivatives. The published artifact set on APIs.io includes an API reference.

Authenticated order-entry REST API on trade.ledgerx.com for listing resting limit orders, placing orders, cancelling a single order or all orders for an MPID, atomically cancel-replacing an order, and retrieving the current book state for a contract. Orders are tracked by the message id (mid) returned on submission and followed over the WebSocket feed.

## Machine-readable artifacts (1)

- **APIReference** — https://docs.miaxdx.com/reference/open-orders

## Other LedgerX (MIAX Derivatives Exchange) APIs (1)

- [MIAXdx Market Data and Account API](https://apis.io/apis/ledgerx/market-data/)

## Tags

Trading, Order Entry, Derivatives

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/ledgerx/trading/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/ledgerx/.