In response to Ericsson’s suspicious operator-API joint venture, Nokia has acquired the technology and R&D unit from Rapid, a startup that once held a billion-dollar unicorn valuation. Formerly known as RapidAPI, the firm runs an API marketplace. No price is being given, but it is likely under $100 million – as Nokia would have to report a transaction above this threshold to its shareholders. Nokia will use the assets to “strengthen development of network API solutions and ecosystem.” Nokia will also be able to enable its operator customers to more easily interact with the continuing Rapid API marketplace, which Rapid says is used by over 4 million developers, with over 40,000 APIs, and generating over 5 billion API calls per…