General
What is Tardis.dev and what is your unique value proposition?
Tardis.dev provides the most comprehensive and granular cryptocurrency market data products in the industry and offers:
access to high frequency historical data including the most granular tick level order book updates and trades for both derivatives and top spot cryptocurrency exchanges
non standard data types: historical funding, open interest, indexes, liquidations and more
fast and convenient data access both via API and downloadable CSV files
data sourced from real-time WS market data feeds with complete control and transparency how the data is being recorded
exchange-native and normalized data format support
time-machine market replay allowing reconstruction of state of the limit order book at any given moment in time across all supported cryptocurrency markets
fair, transparent pricing with discounts for solo trades, small prop shops and academic researchers
consolidated real-time market data streaming support via Tardis.dev open source libraries that connect directly to exchanges' public WebSocket APIs (no API key required)
Data use cases
market microstructure and order book dynamics research
trading execution optimization
tick-level granularity market simulation
liquidity and lead-lag analysis
backtesting and optimization of trading strategies
full historical order book reconstruction at any given point in time
training machine learning models
alpha generation
designing quantitative models
academics research
data visualizations
Which exchanges, instruments and currency pairs are supported?
In total over 40 000 distinct instruments & currency pairs across leading derivatives and spot cryptocurrency exchanges is supported. We collect and provide data for all instruments & currency pairs available on given exchange with some exceptions for spot exchanges where we collect high caps currency pairs only (due to exchanges API limitations).
Binance
Bitfinex
Kraken Futures (Crypto Facilities)
Kucoin
Do you provide discounts?
We do provide discounts in a transparent form via different subscriptions types.
Do you offer free trials?
Yes, if you'd like to test the service (data quality, coverage, API performance etc.) we offer generous free trials. Simply reach out to us and we'll set up trial account for you.
What does professional support mean?
Our support team has in-depth knowledge of market data and exchanges' APIs peculiarities, programming and data analysis expertise. You get the answers straight from people whose day to day job is overseeing and maintaining market data collection process and infrastructure.
For business subscriptions we provide dedicated communication channel (via Telegram Messenger, email or Zoom calls) for your company where our team is on standby every business day (7AM - 3PM UTC) to answer any questions you may have. For pro subscriptions and one-off purchases we do provide email based support with 24-48 business hours initial response time.
For academic and solo subscriptions there is no dedicated support provided, only self-service.
What would I use your services if I can collect data by myself?
Since cryptocurrency exchanges' market data APIs are public anyone can use those to collect the data, but it's a time consuming and resource intensive undertaking (exchanges we support publish ~1000GB of new data every day), that requires investment in proper infrastructure, constant monitoring and oversight (exchanges API changes, rate-limiting monitoring, new exchanges integrations, unexpected connection issues, latency monitoring etc.), not to mention implementation costs of data collection, storage and distribution services. All in all we think our offering is comprehensive, transparent and fair, provides good value and saves you time and money in comparison to in-house solution allowing you to focus on your core objective not on data management intricacies.
How can I download the data?
You can access historical market data via API which provides raw data in exchange native format or download CSV datasets with trades, incremental order book L2 updates, order book snapshots, options chains, quotes, derivative tickers (open interest, funding, mark price, index price) and liquidations. Our client libs provide data in normalized format as well, which can be more flexible than CSV datasets for some use cases but also slower to download due to on-demand, client-side data normalization overhead in comparison to ready to download CSV files.
How far back the historical data is available?
Data is available since 2019-03-30 for majority of the supported exchanges (that existed at that time).
exchange
available since
2019-03-30
2019-03-30
2019-11-17
2020-06-16
2019-03-30
FTX (delisted)
2019-08-01
2019-03-30
2019-03-30
2020-02-01
2019-03-30
2019-11-19
2020-03-28
2020-10-30
2019-11-19
2019-09-14
2019-05-23
2019-03-30
2019-03-30
2019-06-04
2019-03-30
2019-08-30
2020-07-01
2019-11-07
2021-12-04
2021-04-06
2023-01-20
2022-08-16
2023-02-23
2021-03-03
2020-03-17
2020-03-30
2021-03-28
FTX US (delisted)
2020-05-22
2019-09-25
2020-07-01
2020-07-01
2023-01-13
2022-06-01
2019-11-19
2019-08-30
2019-11-19
2020-07-14
Binance DEX (delisted)
2019-06-04
Do you provide historical market data in CSV flat files?
Yes, see downloadable CSV files documentation for more details.
What programming languages are supported?
Any programming language that can communicate using HTTPS can communicate with our HTTP API.
We do provide official Python and Node.js clients that offer fast and convenient access to tick-level historical market data.
Finally, our open source, locally runnable tardis-machine server with built-in local data caching, provides market data normalization, custom order book snapshots capabilities and real-time market data streaming support that connects directly to exchanges' WebSocket APIs. It provides both streaming HTTP and WebSocket endpoints returning market data for whole time periods (in contrast to Tardis.dev HTTP API where single call returns data for single minute time period) and is available via npm and as a Docker Image.
What API protocols can be used to access market data?
Historical market data provided by HTTP API can be accessed via HTTPS.
Locally runnable tardis-machine server provides both HTTP and WebSocket based APIs for accessing both historical and real-time market data.
How time-machine market replay works?
Exchanges' market data WebSocket APIs are designed to publish real-time feeds and not historical ones. Locally runnable tardis-machine server's WebSocket API bridges that gap and allows "replaying" historical market data from any given past point in time with the same data format and 'subscribe' logic as real-time exchanges' APIs. In many cases existing exchanges' WebSocket clients can be used to connect to this endpoint just by changing URL, and receive market data in exchange-native format for date ranges specified in URL query string params.
Do you support consolidated real-time market data streaming?
We do not provide hosted real-time market data API as we think that given everyone can access exchanges' APIs directly for free without restrictions, relaying on 3rd party for such crucial piece of infrastructure does not make sense (additional latency and another SPOF). Instead we developed locally runnable (self hosted) server and open source libraries that offer consolidated real-time normalized market data streaming capabilities, connect directly to exchanges' WebSocket APIs and are completely free to use.
Are there any rate-limits for the API?
There are no API rate limits for downloadable CSV files API.
Raw data replay API for professional level subscriptions is limited to 30 millions requests per day. For business level subscriptions there are no rate limits for raw data replay API as long as your behavior does not negatively impact other customers API usage experience. If that's the case, we'll contact your via email and do our best to help how to sort it out - in most cases it's download client bug that over and over downloads the same data in a loop.
How do I obtain my API key?
API key can be obtained on Tardis.dev website via order form. You'll receive it via email after successful order.
What if my API key was compromised?
Contact us immediately and we will generate new API key for you.
What is your infrastructure setup?
Market data collection
Highly available Google Cloud Platform Kubernetes Clusters located in in London, UK (europe-west2 region) and Tokyo, Japan (asia-northeast1 region)
Market data storage
Two independent, geo-redundant, highly durable storage services
Market data distribution
High performance API servers deployed across network of data centers around the globe
Do you provide SLA?
We do not have a formal SLA in place yet, but all infrastructure is set up to provide highest availability possible on both data collection and distribution side with geo-redundant setup. Both data collection services and public APIs are constantly monitored from multiple locations and our team is immediately notified in case of any issue. We don't practice maintenance that would affect API availability, but in very rare circumstance if that would happen we'll communicate that in advance. If a formal SLA is something that your business require contact us.
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