How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

MIAXdx Market Data and Account API

Public and authenticated REST API on api.ledgerx.com covering exchange contracts, traded contracts, contract tickers, positions, trades (own and global), upcoming exchange holidays and account balances. Responses are paginated with offset/limit and a meta navigation object, and endpoints are individually rate limited by IP.

MIAXdx Market Data and Account API is one of 2 APIs that LedgerX (MIAX Derivatives Exchange) publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Market Data, Trading, and Derivatives. The published artifact set on APIs.io includes an API reference and an AsyncAPI specification.

This event API exposes 0 operations across 1 channel, and defines 6 schemas. It is described by AsyncAPI 3.0.0, at version 1.0.0.

The API connects through a single server, api.ledgerx.com (wss).

0 operations 1 channels 6 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 3.0.0
API Version
1.0.0
Base URL
https://api.ledgerx.com

Messages & Schemas 6

The contract defines 6 schemas that model the data carried by its messages. The most detailed are ActionReport (18 properties), Heartbeat (8 properties), BookTop (7 properties). Each schema is shown below with its type and property counts.

actionReport
message
Describes activity on the market, such as fills, cancels and limit order insertions onto the Central Limit Order Book. Status codes are catalogued in errors/le…
bookTop
message
Dispatched for a contract every time the best price on that contract changes.
heartbeat
message
Sent roughly once per second. Indicates the exchange is running and, if any contracts are active, whether those markets are open for trading.
ActionReport
object
18 properties
BookTop
object
7 properties
Heartbeat
object
8 properties

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

ledgerx-market-data-asyncapi.yml Raw ↑

Other APIs LedgerX (MIAX Derivatives Exchange) publishes across the network.

MIAXdx Trading API
Where this information came from

This is an independent, third-party profile of MIAXdx Market Data and Account API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.