The Indian Railways API is an unofficial REST API that provides access to information about trains, stations, and booking status in India's national railway system. It is free, easy to use, and suitable for developers and educational institutions. The API has two main endpoints: PNR Status Check and Find Stations. Developers can use the API with various programming languages such as Java, Python, PHP, Ruby, and JavaScript. RapidAPI provides code snippets for each endpoint in different programming languages, making it easier for developers to integrate the API into their applications. The Indian Railways API is beneficial due to its free nature and ease of use, making it an attractive option for those looking for a cost-effective and user-friendly solution for accessing railway information.