About Wickra Exchange

Wickra Exchange is a streaming-native crypto-exchange client: one compile-time-typed Exchange trait that spans the ten largest venues — Binance, OKX, Bybit, Coinbase, Upbit, Bitget, Gate.io, Kraken, KuCoin and HTX — behind bespoke authentication and WebSocket state machines. Market data and signed order execution live behind the same API, in eight languages.

What makes it different

• One typed API, ten venues. Symbols, order types, the local order-book builder and reconnect/resubscribe are shared. Only the per-exchange signing family differs.
• Exact decimals. Prices and quantities in the order layer are exact Decimal, never f64.
• Pull-based streams. Market data is drained from your own loop (poll_events), so the same surface crosses the C ABI to every binding — including single-threaded R — as trivially as a synchronous call.
• It plugs into the rest of Wickra. PaperExchange simulates fills through the wickra-backtest engine; ReplayExchange drives recorded microstructure through the same trait; and funding / open-interest / liquidation / long-short feeds arrive as the exact typed shapes wickra-core consumes.

Why it exists

Trading tools usually pick one language and one venue abstraction. Wickra Exchange defines the venue surface once, in Rust, and re-exports that single implementation to Python, Node.js and — over a C ABI — C, C++, C#, Go, Java and R. The same strategy runs paper and live by swapping the implementation, and the same microstructure feeds that drive a backtest drive live execution.

Open source

Wickra Exchange is released under the MIT OR Apache-2.0 license — permissive, OSI-approved, free for any use including commercial. Source, issues and releases live on GitHub.

Disclaimer

Wickra Exchange is a software library, not a trading system, and is provided as-is with no warranty. Real orders move real money; every signed-execution path is safety-critical. Use withdrawal-disabled keys, test against exchange testnets first, never put secret keys in a browser or client, and use it at your own risk.