The Codeforces API is a platform as a service that integrates rankings of programming contests around the world. It is available in JSON architecture with HTTP requests and API Key, which can be generated at http://codeforces.com/settings/api
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The Codeforces Node.js SDK by Ahmed Dinar interacts with the API to access rankings of programming contests. It includes support for streaming activities. It also provides installation, usage, methods, and parameters as resources.