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Changelog

All notable changes to the API2Trade Python SDK are documented here.

Format follows Keep a Changelog. Versioning follows Semantic Versioning.

[1.0.0] — 2026-04-20

Added

  • Api2TradeClient — single entry point for all API operations
  • AccountsResource — register(), register_full(), check_connect(), summary(), delete()
  • MarketResource — quote(), quotes() (multi-symbol convenience)
  • OrdersResource — send(), modify(), close(), close_all(), positions()
    • Automatic retry with exponential back-off on retryable broker rejections (requote, server busy, etc.)
  • HistoryResource — get(), get_page(), iter_all(), last_n_days(), summary_stats()
  • StreamingClient — async WebSocket client with auto-reconnect and ping/pong keepalive
    • Callback style via client.stream()
    • Async generator style via client.stream_iter()
  • Typed models: AccountSummary, Quote, Position, OrderResult, OrderHistoryItem, PaginatedHistory, ConnectStatus, Tick
  • OrderType enum (BUY_MARKET, SELL_MARKET, BUY_LIMIT, SELL_LIMIT, BUY_STOP, SELL_STOP)
  • RetCode enum with all 37 broker return codes + is_retryable() + description() helpers
  • Exception hierarchy: Api2TradeError → AuthenticationError, AccountNotFoundError, RateLimitError, ServerError, ConnectionError, BrokerRejectionError
  • HTTP transport: connection pooling, session reuse, configurable timeouts and retries
  • Pro plan Basic Auth support alongside Single plan API key auth
  • Environment variable configuration (API2TRADE_API_KEY, API2TRADE_ACCOUNT_ID, etc.)
  • Context manager support (with Api2TradeClient(...) as client:)
  • 6 runnable examples covering every major use case
  • Full unit test suite (models, exceptions, all resources) with mocked HTTP