CCAPI: A Header-Only C++ Library for Crypto Exchange Interactions

Introduction

CCAPI is an ultra-fast, header-only C++ library designed for streaming market data and executing trades directly with cryptocurrency exchanges. The library provides direct connections between your server and exchange servers without intermediaries.

Key Features

• Header-only C++ library with language bindings for Python, Java, C#, Go, and JavaScript
• Bloomberg API-inspired design for familiar usage patterns
• 20% CPU reduction in latest release
• Supported exchanges include OKX, Binance, Coinbase, Kraken, and more

Supported Exchanges

Market Data Support

Execution Management Support

👉 View complete exchange list

Getting Started

Branches

• develop: Contains experimental features
• master: Stable release branch

Installation

C++ Requirements

# Required dependencies
brew install openssl cmake boost

Building from Source

cmake_minimum_required(VERSION 3.10)
project(ccapi_example)

set(CMAKE_CXX_STANDARD 17)

find_package(OpenSSL REQUIRED)
find_package(Boost REQUIRED)

add_executable(example main.cpp)
target_link_libraries(example PRIVATE OpenSSL::SSL Boost::boost)

Usage Examples

Market Data Subscription

#include "ccapi_cpp/ccapi_session.h"

class MarketDataHandler : public ccapi::EventHandler {
public:
    void processEvent(const ccapi::Event& event, ccapi::Session* session) override {
        // Process market data
    }
};

int main() {
    ccapi::Session session;
    ccapi::Subscription subscription("okx", "BTC-USDT", "MARKET_DEPTH");
    session.subscribe(subscription);
    return 0;
}

Order Execution

#include "ccapi_cpp/ccapi_session.h"

int main() {
    ccapi::Session session;
    ccapi::Request request(ccapi::Request::Operation::CREATE_ORDER, 
                         "okx", 
                         "BTC-USDT");
    request.appendParam({
        {"SIDE", "BUY"},
        {"LIMIT_PRICE", "35000"},
        {"QUANTITY", "0.01"}
    });
    session.sendRequest(request);
    return 0;
}

Advanced Features

Websocket API Integration

std::string correlationId("ws_order");
Subscription subscription("okx", "", "ORDER_UPDATE", "", correlationId);
session.subscribe(subscription);

Request request(Request::Operation::CREATE_ORDER, "okx", "BTC-USDT");
session.sendRequestByWebsocket(correlationId, request);

Performance Tuning

1. Enable compiler optimizations (-O3)
2. Use link-time optimization
3. Only enable required services
4. Batch process events when possible

FAQ

Q: How do I handle API authentication?

A: Set environment variables:

export OKX_API_KEY="your_key"
export OKX_API_SECRET="your_secret"

Q: What's the minimum C++ version required?

A: CCAPI requires C++17 or later.

Q: How do I troubleshoot connection issues?

A: Enable library logging:

ccapi::MyLogger myLogger;
ccapi::Logger::logger = &myLogger;

👉 Visit documentation for more details

Conclusion

CCAPI provides a robust solution for cryptocurrency exchange interactions with:

• Ultra-low latency
• Comprehensive exchange support
• Multiple language bindings
• Advanced trading features

The library is actively maintained with regular updates and performance improvements.