Introduction to cryptoCMD
cryptoCMD is a powerful Python library designed for scraping and analyzing historical cryptocurrency market price data. This open-source tool simplifies the process of gathering comprehensive cryptocurrency data from CoinMarketCap, one of the most trusted sources in the crypto industry.
Key Features
- Comprehensive Data Collection: Access complete historical price data for any cryptocurrency
- Multiple Output Formats: Export data as JSON, CSV, or Pandas DataFrame
- Flexible Timeframes: Retrieve data for specific date ranges or all-time history
- Easy Integration: Simple Python implementation with clear documentation
Installation Guide
To install cryptoCMD from the latest source, run the following command:
pip install git+git://github.com/guptarohit/cryptoCMD.gitComprehensive Usage Guide
CoinMarketCap Scraper Functionality
The library provides several methods to extract cryptocurrency data from CoinMarketCap in various formats:
1. Retrieving All-Time Historical Data
from cryptocmd import CmcScraper
# Initialize scraper without time interval for complete historical data
scraper = CmcScraper("XRP")
# Get raw data as list of lists
headers, data = scraper.get_data()
# Get data in JSON format
xrp_json_data = scraper.get_data("json")
# Export data as CSV file (optional name parameter available)
scraper.export("csv", name="xrp_all_time")
# Get data as Pandas DataFrame
df = scraper.get_dataframe()👉 Discover more cryptocurrency tools
2. Handling Cryptocurrencies with Shared Coin Codes
from cryptocmd import CmcScraper
# Initialize scraper with both coin code and name for clarity
scraper = CmcScraper(coin_code="sol", coin_name="solana")
# Process and export data as needed
headers, data = scraper.get_data()
solana_json_data = scraper.get_data("json")
scraper.export("csv", name="solana_all_time")
df = scraper.get_dataframe()3. Retrieving Data for Specific Time Periods
from cryptocmd import CmcScraper
# Initialize scraper with date range (DD-MM-YYYY format)
scraper = CmcScraper("XRP", "15-10-2017", "25-10-2017")
# Available data processing options
headers, data = scraper.get_data()
json_data = scraper.get_data("json")
scraper.export("csv")
df = scraper.get_dataframe()Data Structure Overview
The retrieved dataset includes the following comprehensive columns:
DateOpen,High,Low,ClosepricesVolumeMarket CapTime Open,Time High,Time Low,Time Close
👉 Explore advanced crypto analytics
Data Source and Usage Rights
All data is scraped from CoinMarketCap, which provides free access to cryptocurrency market data as stated in their FAQ section.
Contribution Guidelines
We welcome contributions from the developer community:
- Fork the repository
- Create your feature branch
- Commit your changes
- Push to the branch
- Submit a pull request
Frequently Asked Questions
Is cryptoCMD free to use?
Yes, cryptoCMD is completely free and open-source under the MIT license.
What cryptocurrencies are supported?
cryptoCMD supports all cryptocurrencies listed on CoinMarketCap, which includes thousands of digital assets.
How frequently is the data updated?
The library scrapes real-time data directly from CoinMarketCap, which updates its market data continuously throughout the day.
Can I use this for commercial projects?
Yes, but please review CoinMarketCap's terms of service regarding commercial use of their data.
What Python versions are supported?
cryptoCMD supports Python 3.6 and above.
How do I handle API rate limits?
The library includes built-in rate limiting to prevent overwhelming CoinMarketCap's servers while ensuring reliable data retrieval.
Final Thoughts
cryptoCMD provides an efficient solution for developers and analysts needing reliable cryptocurrency market data. Its simple interface combined with powerful functionality makes it an excellent choice for various crypto-related projects.
For those interested in expanding their cryptocurrency toolkit, consider exploring additional resources and platforms that offer comprehensive market data and trading capabilities.