Webull Trading Bot: Automate Webull with AI Trading

Webull has rapidly become one of the most popular brokers among retail traders, and its API opens the door to automated trading for the millions of users already on the platform. With completely commission-free trading across stocks, ETFs, and options — including zero per-contract options fees — Webull eliminates cost barriers that make automated trading impractical on many other platforms.

The Webull API provides REST endpoints for order management, account data, position monitoring, and market data access. For automated trading, the API supports market, limit, stop, and stop-limit order types for both stocks and options. The extended hours trading window (4:00 AM to 8:00 PM ET) is wider than many competitors, giving your bot more time to react to pre-market catalysts and after-hours earnings moves. This extended session access is particularly valuable for news-driven and earnings-based automated strategies.

One of Webull's standout features for automation is zero-cost options trading. Most brokers charge $0.35 to $0.65 per options contract, which compounds quickly for bots that trade options frequently. On Webull, your bot can execute options strategies — covered calls, cash-secured puts, vertical spreads — without any commission drag. For strategies like the wheel (selling puts, then selling covered calls on assigned shares), the commission savings over a year of automated trading can be substantial.

Webull's paper trading mode provides a safe environment for testing automated strategies against live market data. Your bot can execute the full trade lifecycle — screening, entry, position management, and exit — in paper mode before you enable live trading. This is essential for validating that your automation handles edge cases like partial fills, extended hours price gaps, and rapid market movements correctly.

The platform's fractional share support enables precise position sizing for automated portfolio strategies. Whether your bot is running a momentum scanner that needs to allocate exact dollar amounts or a portfolio rebalancer that maintains target weights, fractional shares ensure mathematical precision in execution. Combined with the $0 minimum deposit, Webull is accessible for automated traders at every account size.

Webull also supports cryptocurrency trading through the same account, allowing your bot to diversify into Bitcoin, Ethereum, and other major cryptocurrencies without needing a separate exchange account. This multi-asset support within a single API connection simplifies the automation architecture.

The primary limitations for Webull automation are the less mature API documentation compared to Alpaca or IBKR, and the limited order types available via API. Advanced algorithmic order types (VWAP, TWAP, iceberg) are not available, and the API does not support bracket orders natively. Tradewink compensates by implementing these features at the application layer — managing stop-loss and take-profit levels through its own monitoring rather than relying on native broker bracket orders.

Tradewink connects to Webull via API key authentication. Once connected, Tradewink monitors your positions in real time, executes trades based on AI-driven signal analysis, manages risk with automatic stop-losses, and takes advantage of Webull's extended hours window for pre-market and after-hours opportunities. The entire automation pipeline runs commission-free.