Change Logs

2026-08-22

Optimized API endpoint descriptions and paths.

Changed

Category	API	Change
API	Trading API	Optimized API endpoint descriptions and paths for clarity and consistency.

2026-08-08

Add Subscribe Position Events.

Add

Category	API	Change	Link
API	Trading API	Add the 'Subscribe Position Events' interface.	Subscribe Position Events

2026-08-04

Trading API: Added US Single-Leg Options support.

New

Category	API	Change	Link
API	Trading API	Added US Single-Leg Options trading support. SG accounts can now place, replace, and cancel single-leg option orders (Call/Put) through the unified order endpoints. Supported order types: Market, Limit, Stop Loss, Stop Loss Limit. Supported time-in-force: DAY, GTC. Strategy: SINGLE.	Single-Leg Options
Docs	Trading API	Updated Trading API Overview to include Single-Leg Options in Supported Products and Feature Matrix.	Trading API Overview

2026-08-03

AI-Friendly Resources: Webull Cloud MCP Server has added available endpoints.

Add

Category	API	Change	Link
Docs	—	Webull Cloud MCP Server Add the following available endpoints: get_stock_capital_flow, get_stock_filings, get_stock_earnings_calendar, get_stock_dividend_calendar, get_stock_forecast_eps, get_stock_industry_comparison, get_fund_rating, get_fund_performance, get_fund_allocation, get_fund_holdings, get_fund_brief, get_fund_dividends, get_fund_splits, get_fund_net_value, get_fund_files, get_financial_alert, get_financial_indicators, get_income_statement, get_balance_sheet, get_cash_flow, get_market_sectors, get_market_sectors_detail, get_high_dividend, get_52_week_high_low	Webull Cloud MCP Server

2026-08-01

AI-Friendly Resources: Added Webull CLI documentation.

New

Category	API	Change	Link
Tool	CLI	Added Webull CLI — a single-binary Go command-line tool providing structured access to Webull OpenAPI for stock trading, market data, account management, and instrument lookup. Supports JSON and CSV output, AK/SK authentication with 2FA, multi-profile management, and automation-friendly design for AI agents, scripts, and CI workflows.	Webull CLI

2026-07-25

AI-Friendly Resources: Added Webull Cloud MCP Server documentation.

New

Category	API	Change	Link
Docs	—	Added Webull Cloud MCP Server quickstart documentation under AI-Friendly Resources	Webull Cloud MCP Server

2026-06-27

Trading API and Market Data API update.

Changed

Category	API	Change	Link
API	Market Data API	Move the following three endpoints from the Trading API/Instrument directory to the Market Data API/Fundamentals directory: Company Profile, Analyst Target Price, and Analyst Rating.	Company Profile

Add Watchlist and some API.

Add

Category	API	Change	Link
API	Market Data API	Add Watchlist (Get Watchlist、Create Watchlist、Update Watchlist、Delete Watchlist、Get Watchlist Instruments、Add Instruments to Watchlist、Remove Instruments from Watchlist、Update Instruments Sort Order)	Get Watchlist
API	Market Data API	Add Screener (Gainers & Losers、Top Active) API endpoints to the market-data directory.	Gainers & Losers

2026-06-13

Signature document update.

Historical Bars API now supports additional bar intervals, including intraday, daily, weekly, monthly, and yearly timeframes.

Changed

Category	API	Change	Link
Docs	—	Signature document content updated by part format.	Signature
API	Market Data API	Historical Bars endpoint updated timespan.schema.enum to support additional values: M15, M30, M60, M120, M240, D, W, M, Y.	Historical Bars

2026-06-06

Trading API: Stock Instrument endpoints added margin requirement ratio fields.

Changed

Category	API	Change	Link
API	Trading API	Get Stock Instrument response now returns four additional margin fields: intraday_margin_long — Intraday margin requirement ratio for long position intraday_margin_short — Intraday margin requirement ratio for short position maintenance_margin_long — Maintenance margin requirement ratio for long position maintenance_margin_short — Maintenance margin requirement ratio for short position	Get Stock Instrument