API Overview

Event Contracts API REST API and WebSocket overview.

Event Contracts API provides REST API for market discovery, market data, orders, positions, account data, and claims, plus WebSocket for real-time updates.

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Base URL

https://api.dexbuilder.com

Public market-data REST endpoints use /api/v4/event_contracts and do not require authentication. Private order, position, account, and claim endpoints use /api/v4/broker/event_contracts. Call private endpoints with a Broker API Key and pass the target user’s wallet address in X-User-Wallet-Address. See Broker API Key and signing and Access on behalf of a user. Private WebSocket subscriptions use the separate Broker WebSocket authentication flow.