Kaiko is an enterprise market-data vendor with broad venue coverage, reference data, and indices aimed at institutions. CryptoHFTData focuses on one thing: free, research-grade high-frequency data — full L2 order book updates, tick trades, liquidations, open interest, and funding — delivered as simple hourly Parquet files.
Competitor details reflect what Kaiko publicly described as of July 2025. Always verify current products, coverage, and pricing with the vendor before purchasing.
Kaiko publicly positions itself around institutional breadth: many venues, reference rates, indices, and enterprise support, typically under paid contracts.
Feature
CryptoHFTData
Kaiko
L2 order book data
Free, full L2 order book updates (snapshots + deltas)
Paid; granularity and depth vary by product tier
Trades, liquidations, derivatives metrics
Free tick trades, liquidations, open interest, funding/mark price
Paid; broad institutional catalog incl. reference data
You want full-granularity L2 updates rather than periodic snapshots, at zero cost.
You are a quant researcher or small team without an enterprise data budget.
You want files you can download and replay locally instead of an enterprise integration.
Choose Kaiko when
You need reference rates, indices, or regulatory-grade data products.
You need enterprise SLAs, support, and procurement processes.
You need long multi-year history or venues CryptoHFTData does not cover.
FAQ
Frequently asked questions
How does CryptoHFTData's granularity compare to Kaiko's?
CryptoHFTData stores every L2 order book update (snapshots plus deltas) so you can reconstruct the book event by event. Enterprise vendors often lean on snapshots or tiered granularity for full depth; check Kaiko's current product docs for the exact granularity of each tier.
Why is CryptoHFTData free when enterprise vendors charge?
CryptoHFTData operates as an open data lake for HFT research. The current public positioning is zero-cost access without usage limits; see the terms page for licensing details.
When is Kaiko the better choice?
If you need indices, reference rates, regulatory products, enterprise support, or coverage breadth beyond CryptoHFTData's venue list, an enterprise vendor like Kaiko is the right tool.
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.