Both services support event-level crypto market research, but they solve different constraints. Tardis.dev is the stronger fit for deep history, exchange-native messages, and time-machine replay. CryptoHFTData is a narrower, zero-cost archive for researchers who want normalized hourly Parquet files from its covered venues.
Competitor details reflect what Tardis.dev publicly described as of August 10, 2026. Always verify current products, coverage, and pricing with the vendor before purchasing.
Tardis.dev publicly documents more than 50 spot and derivatives exchange integrations, exchange-native replay, normalized CSV datasets, and venue-specific history that often reaches back to 2019. That breadth and history are materially greater than CryptoHFTData's newer archive.
Feature
CryptoHFTData
Tardis.dev
Order book data
Normalized L2 price-level events; snapshot and update semantics remain venue-specific
Tick-level snapshots and incremental updates, available in normalized datasets and exchange-native feeds
Trades and derivatives feeds
Tick trades plus liquidation, open-interest, and funding feeds where the venue publishes them
Trades, funding, open interest, liquidations, options, and other feeds depending on the venue
History and venue breadth
Coverage starts in 2025; the exact start date varies by venue and data type
More than 50 exchange integrations; many established venue feeds date to 2019
Delivery and replay
Hourly Parquet/Zstd files via Python SDK, REST API, or S3-compatible access
Daily normalized CSV, raw HTTP replay, client libraries, and local tardis-machine replay on eligible plans
Commercial model
Currently zero-cost access; the standard licence permits personal and internal company use
Paid subscriptions and one-off purchases; history, APIs, and support depend on the selected plan
Choose CryptoHFTData when
Your target window is covered by CryptoHFTData's 2025-and-later archive.
You want normalized, analysis-ready Parquet files without a paid data subscription.
Your workflow is file-oriented and does not require exchange-native message replay.
Choose Tardis.dev when
You need several years of history, including periods before 2025.
You need exchange-native payloads or a purpose-built historical replay service.
You need exchanges, options feeds, or support arrangements outside CryptoHFTData's scope.
FAQ
Frequently asked questions
Is CryptoHFTData a drop-in replacement for Tardis.dev?
No. The schemas, delivery model, historical depth, venue list, and licence terms differ. Validate your required exchange, instrument, dates, fields, and replay logic before changing providers.
When is Tardis.dev the better choice?
Tardis.dev is usually the better fit when you need pre-2025 history, exchange-native raw messages, broad venue coverage, options data, or its historical replay tooling.
Can a research pipeline use both archives?
Yes. A team can use a deeper paid archive for long-horizon tests and CryptoHFTData for a covered recent period. Treat them as separate sources: map schemas explicitly and test timestamp, symbol, and order-book semantics before combining results.
Next
Evaluate the data yourself
The fastest way to compare vendors is to pull a real file: grab an API key, download an hour of L2 data, and replay it.