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Change Logs

2026-01-17​

Documentation​

  • Added About Connect API documentation under the Connect API module, providing an overview of the Connect API framework, its purpose, and core capabilities.

  • Added Authorization and Trading in Connect API documentation under the Connect API module, detailing the end-to-end authorization flow and how trading operations are performed using Connect API.

API Reference​

Market Data API

  • Added a new endpoint: Footprint Connect API

  • Added Get An Authorization Code API documentation, describing how to obtain an authorization code as part of the OAuth authorization process.

  • Added Create And Refresh Token API documentation, covering access token creation and token refresh mechanisms.

2026-01-12​

API Reference Updates​

Market Data API

  • RESTful API

    • Updated the response format for market data snapshots: For the latest response schema, see: Snapshot

  • Data Streaming

    • Enhanced the fields included in market data snapshot streaming.
      For the latest payload definition, see: Snapshot

Trading API

2025-12-13​

Now supporting futures and crypto trading!​

1. Documentation​

2. API Reference​

2025-11-29​

Documentation​

  • Added code examples for the Assets, Accounts, and Orders modules in the documentation.
  • Fixed broken links in the documentation.

2025-11-20​

Documentation Initialization​

Core Description​

  • Create the Webull official Open API documentation for the first time to provide developers with complete interface integration specifications, usage guides, and technical references.
  • Document Purpose: For developers to integrate with Webull Open API and query interface details
  • Document Structure: Divided into three core modules: "Documentation", "API Reference", and "Recipes"

Coverage​

1. Documentation​
  • Description: Welcome、About Webull、About Webull OpenAPI
  • Development Tools: SDKs and Tools、Additional Resources
  • Core Modules:
    • Authentication: Overview 、Individual Application Process、Signature、Token
    • Market Data API: Overview、Getting Started、Data API、Data Streaming API、FAQ
    • Trading API: Overview、Getting Started、Account API、Trading API、Trading Events、FAQ
    • Connect API: Under construction
    • Broker API: Under construction
  • Supplementary Content: Q&A
2. API Reference​
  • Description: Webull Open API Reference
  • Authentication:
    • Document: Token
    • interface: Create Token（POST）、Check Token（POST）
  • Market Data API:
    • Document: Getting Started
    • Stock:
      • Basic interface: Tick（GET）、Snapshot（GET）、Quotes（GET）、Historical Bars（POST）、Historical Bars (single symbol)（GET）
      • Streaming Interface: Subscribe（POST）、Unsubscribe（POST）
  • Trading API:
    • Document: Getting Started
    • Utility interface: Instrument（GET）
    • Account interface: Account List（GET）、Account Balance（GET）、Account Positions（GET）
    • Order interface:
      • Stock order: Preview Order（POST）、Place Order（POST）、Replace Order（POST）、Cancel Order（POST）
      • Option order: Preview Options（POST）、Place Options（POST）、Modify Options（POST）、Cancel Options（POST）
      • Order Query: Order History（GET）、Open Order（GET）、Order Detail（GET）
    • Trade Events: Subscribe Trade Events
3. Recipes​
  • Signature Generation
  • Create and verify token
  • Place your first order