STX API Documentation

STX API Documentation

Real-time market data, order placement and live WebSocket feeds. Sign with one Ed25519 key and trade over REST.

Start here →Try the REST APIWebSockets

Live API demo

Real Ed25519 signing · simulated market feed · no signup requiredreplay ↻

provisioning demo key…

NYY vs BOS · Yankees winmarket_updates

Price	Size	Depth
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Recent trades active_trades

1. Provision demo credentials
2. GET /api/v1/markets
3. POST /api/v1/orders
4. Order appears on the book
5. DELETE /api/v1/orders/{id}

Signed request

waiting…

Getting started

Integrate with STXThe whole path start to finish: key, signing, REST, WebSockets.

Request signingThe Ed25519 scheme in full, with a test vector to check your implementation.

EnvironmentsIntegration and production base URLs for each region.

REST API ReferenceAll 16 endpoints, with a live Try it console and code samples.

Core operations

Markets and eventsQuery markets and events, filter by competition and status.

OrdersPlace, amend and cancel orders; list your resting book.

WebSocket channelsEight Phoenix channels for live market data, fills and positions.

PortfolioSettlements, deposits, withdrawals and loyalty.

Reference and tools

API consoleEvery endpoint with a live Try it console and code samples.

Postman collectionAll 16 endpoints with the Ed25519 signing script already wired in.

Request signingThe scheme in full, with a test vector to check your implementation.

Examples on GitHubRunnable Python quickstart and a live channel watcher.