Introduction#

Wallet API provides AI Agents, trading bots, and Web3 applications with complete onchain asset querying and transaction execution capabilities — check balances, send transactions, and track onchain activity, all through a unified interface.

• Check Balance API — Query any wallet's total asset value, multi-chain token balances, and specific token holdings in real time. Agents automatically fetch the latest state before trading.
• Transaction API — Estimate gas, simulate execution, broadcast transactions, and track order status in real time. Combines OKX's proprietary nodes with third-party nodes for smart multi-path broadcasting that improves onchain success rates.
• Transaction History API — Query complete transaction records by address or view specific transaction details. Supports filtering by asset type, transaction direction, and time range.