Copilot Instructions for CryptoExchange.Net

This repository is CryptoExchange.Net — the base library powering 28+ cryptocurrency exchange wrappers in C#/.NET (Binance.Net, Bybit.Net, OKX.Net, Kraken.Net, Coinbase.Net, etc.).

When generating code in this ecosystem, follow these conventions:

You don't install CryptoExchange.Net directly

Install the exchange-specific library you need (Binance.Net, JK.OKX.Net, Bybit.Net, ...) or CryptoClients.Net for the bundle. CryptoExchange.Net is pulled in as a dependency.

Multi-exchange code uses SharedApis

For code that must work against multiple exchanges, use CryptoExchange.Net.SharedApis interfaces accessed via .SharedClient properties on each exchange's API surface:

using CryptoExchange.Net.SharedApis;

ISpotTickerRestClient binance = new BinanceRestClient().SpotApi.SharedClient;
ISpotTickerRestClient okx     = new OKXRestClient().UnifiedApi.SharedClient;

var symbol = new SharedSymbol(TradingMode.Spot, "BTC", "USDT");
var ticker = await binance.GetSpotTickerAsync(new GetTickerRequest(symbol));

Same code works on every exchange that implements the interface. Use Task.WhenAll for concurrent multi-exchange calls.

Single-exchange code uses the exchange's own client

For Binance-only code, use BinanceRestClient directly (see Binance.Net repo CLAUDE.md). SharedApis is for portability — use it when you need that.

Result pattern

Every method returns WebCallResult<T> or CallResult<T>. Check .Success before .Data. .Error has structured info. .Exchange on shared clients identifies which exchange responded.

Available shared interfaces

REST: tickers, symbols, orderbook, klines, trades, orders (spot/futures, trigger, TP-SL), balances, positions, fees, deposits/withdrawals, transfers. WebSocket: tickers, book tickers, orderbook, trades, klines, user data.

Each exchange library implements a subset. Check exchange docs for support matrix.

Avoid

Installing CryptoExchange.Net alone and trying to call exchange APIs (need exchange-specific packages)
Mixing exchange-native models in cross-exchange code (use Shared* types)
Synchronous .Result / .Wait() (use await)
Instantiating clients per-request (use DI, reuse instances)
Sequential per-exchange calls when parallel is fine (Task.WhenAll)

Reference

For detailed patterns see CLAUDE.md and llms.txt in repo root, examples/ai-friendly/ for compilable examples.

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