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Changelog

This section will cover the technical changes to the products or documentation. The Changelog section is not just a record of changes; it's a communication tool that bridges the gap between developers and users, ensuring that the latter has a clear understanding of the product's evolution and current state.

It's a log of: BREAKING CHANGES, FEATURES, IMPROVEMENTS, BUG FIXES, INTEGRATIONS or other NOTES per public version.

April, 2024​

FEATURES​
  • Index API: We’ve released the Alpha version of the feature with the IDX_REFRATE_VWAP indexes family. Values have been filled backward for almost 15 years. Current values are also available. Index endpoints have been refreshed to reflect available operations and fit usage scenarios. The documentation is updated.
  • Index API: The feature is designed to give a comprehensive view of the market by aggregating data from many sources. This can be particularly useful for traders and investors who want to get a broad overview of the market conditions. More information about the Index API can be found at https://docs.coinapi.io/market-data/rest-api/indexes
  • CoinAPI SDK: .NET console application for SDK exchange data throughput/latency tests
  • Market Data WebSocket API: We added possibility to subscribe to any asset pair in exchange rates (previously only USD or stable coins were allowed on the quote).
IMPROVEMENTS​
  • Status Page: We are now collecting new Prometheus metrics from the integrations that will be charted in Grafana. In the next step, we will provide dashboards with performance metrics for our API, so that customers have more insight into our statistics.
  • Customer Portal: A new, more transparent view of subscriptions is introduced: https://customerportal.coinapi.io/subscriptions
  • Market Data API: Exchange Rates API – Historical Exchange Rates using now the same data source as Index API.
  • Market Data API: Multiple unrelated stability and latency improvements executed.
INTEGRATIONS​
  • Market Data API: General stability and performance improvements for DERIBIT, POLONIEXFTS, CRYPTOCOM
NOTES​
  • Websocket API: Changed book data type to require a defined filter in the hello or subscribe message

March, 2024​

FEATURES​
  • Market Data WebSocket API: Added 2 new messages (subscribe and unsubscribe) to allow control the state of the connection without repeating the complete state using hello message at every change.
IMPROVEMENTS​
  • Market Data REST API: Added example responses in the REST API in OpenAPI and in the documentation.
  • Market Data API: Several improvements exeucted for the BEQUANT CRYPTOCOM HUOBIFTS~ BITKUB data sources.
  • Market Data REST API: OHLCV by Exchange endpoint can now be called while time_start and time_end crossing midnight UTC.
  • Market Data API: Multiple unrelated stability and latency improvements executed.
  • Documentation: Added the API limits and billing metrics page.
  • Documentation: Added the performance testing guide page.
BUG FIXES​
  • Market Data REST API: Resolved issue causing the REST API Credits to be counted incorrectly while having multiple API Keys for some customers.

February, 2024​

FEATURES​
  • Market Data REST API: Added Index API feature for the testing and early feedback in alpha version.
  • Market Data REST API: Added OHLCV historical data by exchange.
IMPROVEMENTS​
  • Documentation: Added the EMS Trading API QuickStart How-to Guide.
  • Website: Released Metadata Explorer covering the exchanges and symbols that we support.

January, 2024​

BREAKING CHANGES​
  • EMS API: Public release of the product, promotion from the beta phase.
IMPROVEMENTS​
  • Market Data API: Increased stability and reduced latency by 50% for the Exchange Rates and OHLCV endpoints.
  • Support: Intoduced AI Bot that has the information about the product and answering questions on the support.
  • Market Data API: Increased the frequency and stability of the data feeds reducing the latencies and variance of latencies.
  • Documentation: Migrating the FAQ section to the documentation.
  • Website: Improved free plan subscription flow.
INTEGRATIONS​
  • Market Data API: Added new integration DYDX to the DYDX v3.
  • EMS API: Added new integration DYDX to the DYDX v3.
FEATURES​
  • Market Data FIX API: Improved feed L2 feed to make sure each L2 update is trackable to specific L3 updates if the data source distributing data in L3 format.
BUG FIXES​
  • EMS API: Resolved issue related to the fact that we reported errors on invalid orders received from the customer side in non descriptive manner.
NOTES​
  • We focused mostly on the stability of the platform and improvements that we can execute on multiple fronts.