Io Google Finance
Google Finance API: A Look Back at the Unofficial Interface
Before the proliferation of robust financial APIs, developers and enthusiasts relied on unofficial interfaces to access market data. One such prominent example was the so-called Google Finance API, often referred to as io.google.finance. This wasn’t an officially supported API by Google, but rather a method of scraping or querying data from Google Finance’s website. It allowed users to programmatically retrieve real-time stock quotes, historical data, currency exchange rates, and other financial information.