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May 31, 2022

What is CoinAPI? The Evolution of Crypto API

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CoinAPI provides crypto market data and trading infrastructure for developers, trading firms, institutions, researchers, and fintech teams.

Instead of integrating separately with hundreds of cryptocurrency exchanges, teams can access standardized data and specialized products for real-time market data, historical datasets, exchange rates, indexes, and execution workflows through CoinAPI.

CoinAPI is a provider of cryptocurrency market data and APIs, offering data and infrastructure for developers, institutions, researchers, trading firms, and fintech teams.

With a focus on delivering standardized and reliable data, CoinAPI provides access to real-time and historical market data, exchange rates, crypto indexes, bulk historical datasets, and trading infrastructure.

Today, CoinAPI includes several products designed for different cryptocurrency data and trading workflows.

If you’re looking for current and historical cryptocurrency data, CoinAPI provides access to exchanges, assets, symbols, trades, quotes, order books, OHLCV, exchange rates, indexes, and other market information.

For large historical workloads, Flat Files provides bulk datasets through S3-compatible access. For trading and execution workflows, EMS Trading API provides a separate execution layer.

Crypto APIs are essential tools for accessing market information programmatically, automating data workflows, building trading applications, and integrating real-time or historical data into financial products.

Whether you’re a cryptocurrency developer, trader, researcher, or institution, the goal is the same: reduce the complexity of working with fragmented crypto markets.

CoinAPI began as infrastructure built to support high-frequency market-making and statistical-arbitrage research in cryptocurrency markets.

The original challenge was straightforward: every cryptocurrency exchange had a different API, data structure, symbol convention, and connection model. Instead of maintaining separate integrations for every venue, CoinAPI created a unified interface for accessing exchange market data.

In the beginning, CoinAPI focused primarily on Market Data API.

Today, CoinAPI offers a suite of specialized crypto data and trading infrastructure products.

ProductWhat it provides
Market Data APITrades, quotes, order books, OHLCV, options data, market metrics, and reference data
Exchange Rates APIReal-time and historical crypto/fiat and crypto/crypto exchange rates
Indexes APIPRIMKT, VWAP, CAPIVIX, historical index values, time series, and index composition
Flat FilesBulk historical trades, quotes, order books, and OHLCV datasets
EMS Trading APIOrders, balances, positions, execution reports, and Smart Order Routing
Exchange LinkDedicated exchange connectivity and enterprise integration options

This product ecosystem allows teams to choose the right infrastructure for their workflow instead of treating every crypto data problem as the same API problem.

CoinAPI offers a range of features for teams working with cryptocurrency market data and trading infrastructure.

  • Comprehensive cryptocurrency market data: Access trades, quotes, order books, OHLCV, options data, market metrics, metadata, and other supported datasets.
  • Real-time data: Stream supported market data for applications that need continuous market updates.
  • Historical data: Retrieve historical market data for research, analytics, backtesting, and other data-intensive workflows.
  • Bulk historical datasets: Flat Files provides large historical datasets including trades, quotes, order books, and OHLCV.
  • Standardized data: CoinAPI normalizes data from different exchanges into consistent schemas and identifiers.
  • Multiple interfaces: Depending on the product, data can be accessed through REST, WebSocket, FIX, JSON-RPC, MCP, and S3-compatible delivery.
  • Developer resources: SDKs, documentation, examples, and metadata tools are available to support integration.

As of publication, CoinAPI's Market Data API covers 400+ integrated exchanges, 916K+ symbols, 18K+ supported assets, and 678 TB+ of historical market data.

CoinAPI has grown beyond a single market data API.

The goal is to provide specialized infrastructure for different cryptocurrency data and trading requirements while reducing the need for customers to maintain multiple exchange integrations and data pipelines.

Instead of using one provider for real-time market data, another for bulk history, another for exchange rates, and separate infrastructure for execution, teams can use different CoinAPI products according to their requirements.

This includes real-time and historical market data, exchange rates, crypto indexes, bulk historical datasets, and execution infrastructure.

The broader vision remains similar to the original idea behind CoinAPI: make fragmented cryptocurrency markets easier to access through standardized interfaces and infrastructure.

Getting started with CoinAPI is straightforward.

Users can create an account through the API BRICKS Console, generate an API key, and choose the CoinAPI product required for their workflow.

CoinAPI does not offer a traditional unlimited free plan. Instead, new users can receive $25 in free Usage Credits after creating an API key and verifying a payment method. These credits can be used to evaluate supported PAYG data and workflows before purchasing additional Usage Credits or moving to a committed plan.

Documentation, tutorials, SDKs, and examples are available to help developers get started.

CoinAPI serves developers, fintech teams, trading firms, institutions, quants, and researchers working with cryptocurrency markets.

Its products cover different parts of the data and trading workflow:

  • Real-time market data
  • Historical market data and analysis
  • Bulk historical datasets
  • Exchange rates and asset valuation
  • Crypto indexes and volatility benchmarks
  • Building trading signals from normalized market data
  • Trading and execution workflows
  • Dedicated exchange connectivity

CoinAPI's Market Data API alone currently integrates data from more than 400 exchanges through a standardized interface.

CoinAPI has a wide range of real-world applications, including:

  • Crypto trading: Market data can be used to inform trading decisions, build strategies, and monitor market conditions.
  • Market analysis: Real-time and historical data can be used to analyze prices, liquidity, volatility, volume, and other market behavior.
  • Research: Historical datasets can support quantitative research, backtesting, academic studies, and machine-learning projects.
  • Development: Developers can build applications and services using standardized cryptocurrency market data.
  • Exchange data: CoinAPI provides exchange-specific information such as trades, quotes, order books, OHLCV, symbols, and trading volume.
  • Execution: EMS Trading API supports order management, balances, positions, execution reports, and other execution workflows across supported integrations.

The important distinction is that CoinAPI provides the data and infrastructure used to build these systems. For example, customers can use CoinAPI data to develop their own trading signals, rather than CoinAPI being positioned as a trading-signal provider.

CoinAPI provides data and connectivity tools for teams building products around digital assets.

  1. One standardized data layer: Developers can work with standardized identifiers and schemas instead of building a separate abstraction layer for every exchange.
  2. Multiple interfaces: CoinAPI supports different interfaces depending on the product and workload. Market Data API, for example, supports REST, WebSocket, FIX, JSON-RPC, MCP, and S3 access. FIX can support institutional market data workflows, while EMS provides interfaces for execution workflows.
  3. Global infrastructure: Crypto markets operate continuously across the US, Europe, Asia, and other regions.CoinAPI operates globally distributed infrastructure designed for low-latency and resilient access. Customers with more specific connectivity requirements can also discuss enterprise connectivity and deployment options. CoinAPI's current documentation describes AWS regions and colocated infrastructure across the US, Europe, and Asia.
  4. Historical data at scale: Historical data requirements can quickly become too large for traditional request-by-request API retrieval.CoinAPI Flat Files provides bulk historical trades, quotes, full order books, and OHLCV through S3-compatible access, with additional delivery options available for supported workflows.
  5. Developer tools: SDKs and examples are available through the API BRICKS/CoinAPI GitHub repositories for multiple programming languages and common integration patterns. Developers should check the current documentation for maintained libraries and examples.

CoinAPI provides standardized APIs and infrastructure that help teams integrate crypto market data, exchange rates, indexes, historical datasets, and trading workflows into their applications.

Choose Market Data API for real-time and targeted historical exchange data, Exchange Rates API for standardized crypto and fiat rates, Indexes API for crypto benchmarks, Flat Files for bulk historical datasets, or EMS Trading API for execution workflows.

New users can start with $25 in free Usage Credits to evaluate supported CoinAPI products and monitor usage directly through the API BRICKS Console.

Explore CoinAPI products, create your API key, and manage your credits, billing, usage, and account through the API BRICKS Console.

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