tardis-dev
Convenient access to tick-level historical and real-time cryptocurrency market data via Node.js
ccxws
Websocket client for 37 cryptocurrency exchanges
tardis-machine
Locally runnable server with built-in data caching, providing both tick-level historical and consolidated real-time cryptocurrency market data via HTTP and WebSocket APIs
orderbooks
In-memory state stores and handlers for caching multiple exchange:symbol orderbook states