CoinAPI.io - Blog

CoinAPI Blog

Welcome to the CoinAPI blog, where you can find the latest news and announcements about our product, as well as opinions from our community. We are a leader in providing fast and reliable cryptocurrency market data to developers and businesses.

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Crypto Knowledge
Execution Quality in Crypto: How to Measure Slippage, Liquidity, and Best Execution
Crypto execution quality requires measuring slippage, liquidity, and best execution using normalized trades and order book data — not just candles.
Use Case
How to Build a Rate-Limit Safe Client: Budgeting Requests Using Response Headers
Learn how to build a rate-limit safe client using rate limit headers to budget requests, prevent 429 errors, and control spend at the subscription level.
Use Case
How to Backtest Crypto Data (Spot, Options, Futures) Properly
Backtesting crypto properly requires more than OHLCV you need order book depth, funding, settlement logic, and normalized multi-exchange market data.
Product Features
Building Reinforcement Learning-based (RL) crypto trading bot with CoinAPI
Learn how to build a reinforcement learning-based crypto trading bot using CoinAPI’s quote-level data, limit books, and real-time feeds.
Crypto Insights
What Institutional Traders Look for in a Market Data Provider
Institutional traders choose market data providers based on completeness, exchange coverage, latency, and structured crypto market data not just price feeds.
Product Features
From Crypto to Macro: Building a Cross-Asset Data Stack with CoinAPI and FinFeedAPI
Learn how to build a unified cross-asset market data stack combining crypto, macro, and prediction market data for stronger risk modeling and multi-asset strategy development.
Product Features
How to Build a Crypto Price Difference Website (5+ Exchanges, Real-Time, Per-Second Updates)
Learn how to build a real-time crypto price comparison website showing price differences across at least 5 exchanges per second. Architecture, data design, pitfalls, and how to scale it properly.
Use Case
Building an Institutional-Grade AI Trading System with Modular GPT Logic and Real-Time Market Data
How institutional teams build AI trading systems using modular GPT logic, real-time WebSocket market data, and a unified multi-asset infrastructure across crypto, FX.
Product Features
How to Access Historical Funding Rates Across Top Crypto Exchanges?
Access up to four years of historical funding rate data from top crypto derivatives exchanges like Binance, Bybit, and Deribit using CoinAPI’s unified Metrics API for backtesting and research.
Product Features
How many exchanges do you currently support for historical funding rate data?
How many exchanges support historical funding rate data? A practical breakdown of CoinAPI’s derivatives coverage, how funding rates differ by exchange, and how to discover what data is actually available for your symbols.
Product Features
Does CoinAPI Stream True Level 3 (Market-By-Order) Data? WebSocket vs WebSocket DS Explained
Understand the difference between Tier 1, Tier 2, and Level 3 market data in crypto, including where true Market-By-Order data is available and how it’s delivered.
Product Features
Bulk Historical Level 3 Crypto Data
Looking for bulk historical Level 3 crypto data? Learn what’s realistically available, why multi-year L3 datasets are rare, and the best alternatives for backtesting and research using order book data.
Use Case
Black Box Trading in Crypto: How Machine Learning Systems Really Work (and Why Data Decides Everything)
What is black box trading in crypto? Learn how machine learning trading systems work, why data quality matters more than models, and how professional teams build reliable black box trading systems.
Product Features
Tier 1 vs Tier 2 Market Data: Where Level 3 is included
Is Level 3 (Market By Order) crypto market data Tier 1 or Tier 2? Learn how CoinAPI classifies continuous order-by-order streams, why Level 3 is Tier 2, and how pricing tiers really work.
Product Features
What Is an ICO and an IDO in Crypto?
What are ICOs and IDOs in crypto, and does CoinAPI provide this data? Learn the difference between ICO and IDO and when CoinAPI market data starts.
Product Features
Do You Have a Crypto Liquidation Data Set?
Do you have crypto liquidation data? Learn how CoinAPI provides historical liquidation metrics, which exchanges are supported, and how to query liquidation data correctly.
Product Features
How Far Back Does CoinAPI Historical Data Go?
How far back does CoinAPI’s historical crypto data go? Learn about multi-year market data coverage, OHLCV timeframes, order book history, and the best way to access each.
Product Features
Does CoinAPI Provide CEX and DEX Data?
Wondering whether CoinAPI supports CEX and DEX data? Learn how centralized and decentralized crypto market data differ, what CoinAPI covers today, and how to use each correctly.
Product Features
Do You Provide VIX, S&P 500, Commodities, or Futures?
Confused about what markets CoinAPI actually supports? This guide breaks down CoinAPI’s crypto market data coverage, what’s included, what’s not, and how it fits alongside traditional market data.
Product Features
Why Most Backtests Fail Without Historical Bid & Ask Data
Most crypto backtests fail because they ignore historical bid and ask data. Learn how spreads, liquidity, and execution reality change results.