K
knowm/XChange
XChange
XChange is a cryptocurrency exchange integration library and API wrapper that provides a unified interface for connecting to multiple cryptocurrency exchanges. It serves as a multi-exchange trading interface and a market data streamer, normalizing raw data from various providers into standardized data objects.
The project distinguishes itself through an adapter-based normalization system and a reactive WebSocket streaming model designed to receive real-time price and volume updates while minimizing thread usage. It includes a dedicated authentication handler for managing API keys, request nonces, and custom SSL trust stores to secure connections with private servers.
The library covers functional areas including real-time market monitoring, private account management, and the execution of trades across different platforms. It provides utilities for both public market data access and authenticated private account services.
Features
- Exchange Connectivity APIs - Provides a unified interface for connecting to market data, trading, and account services across multiple cryptocurrency exchanges.
- Cryptocurrency Exchange Connectors - Provides a unified integration layer for connecting to multiple cryptocurrency exchange APIs and market data feeds.
- Financial Data Adapters - Normalizes raw responses from various financial data providers into a consistent output format for analysis.
- Exchange Account Managers - Provides utilities for managing private exchange account balances and executing trades using API credentials.
- Cryptocurrency Trading Platforms - Provides a unified abstraction for managing private accounts and executing trades across multiple cryptocurrency platforms.
- Multi-Account Trading Protocols - Provides a standardized data layer for tracking holdings and executing trades across multiple cryptocurrency exchanges.
- Cryptocurrency Ticker Price Retrievers - Provides a consistent interface for fetching the latest trading prices and volume data for cryptocurrency pairs.
- Data Standardization - Converts raw API responses from various providers into standardized data objects for consistent processing.
- Market Data Access APIs - Enables reading of public cryptocurrency market information and volume metrics without requiring authentication.
- WebSocket Stream Managers - Manages real-time data subscriptions via WebSockets to stream live coin pair updates with minimal thread usage.
- Market Data Normalizers - Acts as middleware that standardizes heterogeneous data streams from multiple cryptocurrency providers into consistent objects.
- Market Data Streamers - Ships a reactive WebSocket streaming system for receiving real-time cryptocurrency price and volume updates.
- Unified Trading Interfaces - Provides a single consistent set of methods to monitor positions and execute orders across diverse exchange services.
- API Request Authentication - Implements a security layer for managing API keys and session authentication for secure exchange requests.
- Cryptocurrency Market Monitors - Tracks the status and price of digital assets in real-time using low-latency WebSocket streams.
- API Adapters - Normalizes disparate raw API responses from multiple cryptocurrency providers into a unified standardized format.
- Algorithmic Trading Platforms - Provides the necessary normalized data and consistent execution layers for building automated cryptocurrency trading systems.
- Instance Configurations - Provides the ability to instantiate configured exchange clients using specific authentication credentials and secret keys.
- Exchange Metadata Retrievers - Implements a system for retrieving exchange configuration including currency pairs, polling rates, and fees.
- Client-Side Request Authentication - Enables the attachment of security credentials to outgoing requests for access to private trading services.
- Session and Credential Management - Handles the injection of security keys and unique sequence nonces into outgoing requests for authentication.
- Transaction Nonce Tracking - Generates and injects unique sequence nonces into requests to satisfy exchange transaction security and prevent replay attacks.
- Reactive Data Streams - Uses non-blocking reactive streams to handle live market data updates while minimizing active thread usage.
- Java and Scala Libraries - API for interacting with multiple Bitcoin exchanges.
- Cryptocurrency Trading - Java library for interacting with cryptocurrency exchanges.
