Build Crypto & NFT Analytics Tools with Live Crypto Data

An API key is a unique identifier that allows developers and analysts to access real-time and historical cryptocurrency price data, for seamless integration into various applications or use cases provided by CoinGecko. Once you have subscribed to CoinGecko API, you can set up your own keys by following this easy guide.

Follow these steps to access the CoinGecko API and make your first API call:

1. Create an account: Sign up for a CoinGecko account and choose either a free (Demo) or paid plan at www.coingecko.com/api/pricing.
2. Generate your API key: Go to the Developer’s Dashboard and create your API key.
3. Use the correct URLs: Ensure you’re using the correct root URL for your API requests. For paid plans, use https://pro-api.coingecko.com/api/v3/. For the Demo plan, use https://api.coingecko.com/api/v3/.
4. Explore the API documentation: Visit our API documentation to see all available endpoints and query parameters.

The CoinGecko API is the official source for accessing real-time and historical crypto price data from both CoinGecko and GeckoTerminal. With this comprehensive and reliable API, you can obtain accurate price and market data for over 3 million coins, including major cryptocurrencies like Bitcoin, Ethereum, and Solana. 

After setting up your API key, use the Coins List with Market Data (/coins/markets) endpoint. This endpoint allows you to query all supported coins and access data such as price, market cap, volume, price change percentage, fully diluted valuation (FDV), total supply, circulating supply, all-time high (ATH), and more.

The CoinGecko API is widely regarded as the best API for cryptocurrency data, offering unmatched depth and coverage for over 3 million cryptocurrencies across 1,200+ DEXes and 170+ networks. Trusted by developers, analysts, and traders alike, it delivers accurate and reliable market insights essential for any crypto application.

Simplify your integration process with one unified API that delivers aggregated crypto price and market data, exchange volumes, metadata (logos, social links), on-chain DEX data, and more. Learn more about our pricing and plans today!

The CoinGecko API offers five different endpoints to retrieve historical crypto prices using a coin ID or contract address. Depending on your needs, you can access historical data for a specific date, or get chart data that includes price, market cap, and 24-hour volume for a specified number of days or for a custom time range.

For full details, check out our API documentation.

Here’s a quick and easy way to create a crypto portfolio tracker using Excel Sheets:

1. API Integration: Use CoinGecko’s API to automatically fetch the latet cryptocurrency prices.

2. Customize Your Portfolio: Input your cryptocurrency holdings and amounts.

3. Automate Data: Set up Excel formulas or macros to update prices regularly.

4. Analyze Portfolio: Utilize charts and conditional formatting to track the portfolio performance.

For more details and examples, refer to this guide by CoinGecko.

To create an Interactive OHLCV Candlestick Chart using Python, you’d need to:

1. Ensure you have Pandas, Matplotlib, and mplfinance set up, and have generated your CoinGecko API key.
2. Get the historical OHLCV data with CoinGecko API.
3. Create the OHLCV chart with mplfinance library.
4. Chained API calls to fetch network & trading pairs data.

For a detailed guide, read this CoinGecko article.