Coinlib

Overview

Coinlib offers a cryptocurrency market data API designed for developers and technical buyers seeking real-time and historical price information across a spectrum of digital assets. Established in 2017, the platform provides access to current prices, market capitalization, trading volumes, and percentage changes for numerous cryptocurrencies. Its primary utility lies in enabling applications, websites, and analytical tools to display up-to-date crypto market conditions and facilitate basic portfolio management features.

The Coinlib API is RESTful, providing endpoints for retrieving data on individual coins, a list of all supported cryptocurrencies, and global market statistics. Developers can integrate this data into dashboards, trading bots, or content platforms that require reliable and frequently updated market insights. The service is suitable for projects that need to track price movements, monitor portfolio performance, or simply display cryptocurrency information to users. The developer experience is characterized by straightforward documentation and clear examples, primarily using cURL for basic data retrieval.

Coinlib positions itself as a tool for applications requiring access to real-time crypto price tracking and basic portfolio management. Its API allows for the programmatic retrieval of market data, supporting various use cases from personal investment trackers to public-facing crypto information sites. The platform's free tier, offering up to 120 requests per hour, enables initial development and testing without immediate financial commitment, while paid plans extend request limits and data access capabilities. For comparison, alternative services like CoinGecko's API documentation also outline similar data points for cryptocurrency market information, indicating a standardized approach to market data provision in the industry.

The API's structure is designed for ease of integration, providing JSON responses that are commonly used in web and application development. This approach aligns with common web API design principles, as detailed in resources like the MDN Web Docs on REST, which emphasize statelessness and standard HTTP methods. Coinlib's core products include its cryptocurrency market data API and a web-based portfolio tracker, which leverages the same underlying data to provide a user interface for managing crypto holdings.

Key features

• Real-time market data: Provides current prices, market capitalization, 24-hour trading volumes, and percentage changes for a wide array of cryptocurrencies.
• Historical data: Access to past price data for trend analysis and chart generation.
• Global market statistics: Retrieve aggregated data such as total market cap and total 24-hour volume across all tracked cryptocurrencies.
• Coin list API: An endpoint to fetch a comprehensive list of all supported cryptocurrencies with their respective symbols and names.
• Portfolio tracking: A web-based tool allowing users to monitor the performance of their cryptocurrency investments.
• RESTful API: Utilizes standard HTTP methods and returns JSON responses, facilitating integration with various programming languages and platforms.
• Free developer tier: Offers a foundational access level with a rate limit of 120 requests per hour for development and non-commercial use.

Pricing

Coinlib offers a free tier for basic usage, with paid plans available for increased request limits and additional features. Pricing is structured to accommodate different levels of API consumption.

As of 2026-05-28. For the most current pricing details, refer to the Coinlib API pricing page.

Common integrations

Coinlib's RESTful API design allows for integration with various applications and services that require cryptocurrency market data. While specific integration guides for third-party platforms are not extensively detailed on their site, the API's standard approach means it can be consumed by:

• Custom web applications: Displaying real-time crypto prices, charts, and news feeds on websites.
• Mobile applications: Integrating market data into iOS and Android apps for portfolio tracking or informational purposes.
• Trading bots: Providing price feeds for automated trading strategies, although Coinlib primarily focuses on data rather than execution.
• Data analytics platforms: Feeding cryptocurrency market data into tools for deeper analysis and reporting.
• Spreadsheets and business intelligence tools: Using custom connectors or scripts to pull data for financial modeling.

Developers can find detailed information on how to interact with the API endpoints in the Coinlib API documentation.

Alternatives

For those considering cryptocurrency market data APIs, several alternatives offer similar or expanded functionalities:

• CoinMarketCap: A widely recognized platform offering comprehensive crypto market data, including prices, market caps, and exchange volumes.
• CoinGecko: Provides extensive cryptocurrency data, including exchange rates, trading volumes, and developer tools.
• CryptoCompare: Offers real-time and historical cryptocurrency data, news, and portfolio management tools.
• Nomics: Specializes in transparent, high-fidelity crypto market data without exchange manipulation.
• Messari: Provides research, data, and tools for the crypto economy, including an API for institutional-grade data.

Getting started

To begin using the Coinlib API, you typically need to obtain an API key from your Coinlib account. The API is RESTful and can be accessed using standard HTTP requests. Here's a basic example using cURL to fetch a list of all supported cryptocurrency coins:

curl -X GET "https://coinlib.io/api/v1/global?key=YOUR_API_KEY&pref=USD"

In this example:

• YOUR_API_KEY should be replaced with your actual API key obtained from your Coinlib account.
• pref=USD specifies that you prefer the data to be returned in United States Dollars. You can change this to other supported fiat currencies.

The response will be a JSON object containing global market statistics, such as total market cap and 24-hour volume, based on your preferred currency. For more detailed instructions and additional endpoints, consult the Coinlib API reference.

To retrieve data for specific coins, you would use a different endpoint, for example, to get data for Bitcoin (BTC) and Ethereum (ETH):

curl -X GET "https://coinlib.io/api/v1/coin?key=YOUR_API_KEY&pref=USD&coins=BTC,ETH"

This request would return a JSON object with current market data for both Bitcoin and Ethereum, denominated in USD. The API's straightforward design makes it accessible for developers to quickly integrate cryptocurrency data into their applications.