Tardis Machine is a locally runnable server with built-in data caching that uses the Tardis.dev HTTP API under the hood. It provides both tick-level historical and consolidated real-time cryptocurrency market data via HTTP and WebSocket APIs. Available via npm and Docker.

• efficient data replay API endpoints returning historical market data for entire time periods

• exchange-native market data APIs — tick-by-tick historical replay in exchange-native format via HTTP and WebSocket endpoints. The WebSocket API replays data with the same format and subscribe logic as real-time exchange APIs — existing exchange WebSocket clients can connect to this endpoint.

• normalized market data APIs — consistent format across all exchanges via HTTP and WebSocket endpoints. Includes synchronized multi-exchange replay, real-time streaming, customizable order book snapshots and trade bars.

• seamless switching between real-time streaming and historical replay

• transparent local data caching (compressed GZIP on disk, decompressed on demand)

• support for many cryptocurrency exchanges — see docs.tardis.dev for the full list