DEX API and Wallet-as-a-Service Web3 API Documentation

Introduction

OKX OS provides a comprehensive suite of Web3 APIs, enabling developers to integrate decentralized exchange (DEX) functionalities and wallet services seamlessly. This documentation covers key features, quick-start guides, and technical references for building Web3 applications.

Core Services

Wallet API

Account Management: Create and manage wallet accounts programmatically.
Transaction Broadcasting: Send signed transactions to supported blockchains.
On-Chain Data Queries: Retrieve blockchain data through optimized API endpoints.
Client SDKs: Pre-built tools for transaction signing and cryptographic operations.

DEX API

Token Swaps: Execute cross-DEX trades via aggregation routers.
Limit Orders: Create time-contingent trading strategies.
Cross-Chain Bridges: Transfer assets between heterogeneous networks.
Widget Integration: Embeddable UI components for rapid deployment.

Market Data APIs

NFT Market Analysis: Query floor prices, collection stats, and sales history.
Ordinals Protocol Support: Access Bitcoin-based digital artifact data.
Runes Token Metrics: Track emerging fungible token standards.

Key Features

Feature	Description	Use Case
Multi-Chain Support	50+ EVM and non-EVM networks	Cross-platform dApps
Gas Optimization	Automated fee estimation	Cost-sensitive users
Slippage Control	Customizable trade parameters	DeFi traders

Quick Start Guide

Obtain API Keys: Register on the developer portal.
Configure Endpoints: Select appropriate network RPC URLs.
Make Test Calls: Verify connectivity with /ping endpoints.
Deploy Production: Monitor usage via the developer dashboard.

Development Resources

👉 Complete API Reference
👉 Error Code Handbook
👉 Rate Limit Guidelines

FAQ

What's the latency for transaction confirmation?

Typical confirmation occurs within 2-5 blocks (15-30 seconds on EVM chains).

How are API costs calculated?

Free tier includes 50K monthly requests, with volume discounts available.

Can I whitelist IP addresses?

Yes, configure allowed IPs through the security settings panel.

What backup options exist for lost keys?

Use our multi-sig recovery module for enterprise accounts.

Is historical data available?

Trade history archives extend back 24 months for all instruments.

Advanced Integration

For complex implementations:

Smart contract event listeners
MEV-resistant trade bundling
Institutional-grade custody solutions