generated: '2026-07-21'
method: searched
source: https://developer.webull.com/apis/docs/getting-started
docs: https://developer.webull.com/apis/docs/getting-started
model: >-
  Webull separates test and live via an environment selector, not key prefixes.
  The official MCP/SDK default to the UAT (sandbox) environment; live trading
  requires an explicit switch (WEBULL_ENVIRONMENT=prod). Sandbox uses the same
  App Key / App Secret signing flow against sandbox hosts.
environments:
  - id: uat
    label: UAT / Sandbox (default)
    default: true
  - id: prod
    label: Production (live trading)
hosts:
  us:
    production:
      http_api: api.webull.com
      trading_events_grpc: events-api.webull.com
      market_data_mqtt: data-api.webull.com
    sandbox:
      http_api: us-openapi-alb.uat.webullbroker.com
      trading_events_grpc: us-openapi-events.uat.webullbroker.com
      market_data_mqtt: us-openapi-quotes-api.uat.webullbroker.com
      authorization_trading: oauth-open-api.sandbox.webull.com   # migrated 2026-07-20
      login_redirect: passport.webull.com
  hk:
    production:
      http_api: api.webull.hk
      trading_events_grpc: events-api.webull.hk
      market_data_mqtt: data-api.webull.hk
    sandbox:
      http_api: api.sandbox.webull.hk
      trading_events_grpc: events-api.sandbox.webull.hk
      market_data_mqtt: data-api.sandbox.webull.hk
notes: >-
  No published "magic" test symbols or fixture order IDs were found; sandbox uses
  real instrument symbols (e.g. AAPL) against the UAT trading engine. Never invent
  test values. The MCP server also ships risk controls (WEBULL_MAX_ORDER_NOTIONAL_*,
  WEBULL_SYMBOL_WHITELIST) usable in either environment.