Stream.io

Stream is a company that provides API-first solutions for building chat messaging and activity feeds for applications. Their products are targeted at developers and businesses of all sizes, from startups to enterprises, that want to integrate scalable and feature-rich communication functionalities into their products without building them from scratch.

The company's business model is based on a subscription-based model, where they charge customers based on the usage of their APIs and the number of monthly active users. They offer different pricing tiers to cater to the needs of different customers, from a free plan for small projects to custom enterprise plans for large-scale applications.

Stream operates in the growing market of in-app communication, which is being driven by the increasing demand for real-time and engaging user experiences. The company's main competitors include other API providers for chat and activity feeds, as well as in-house solutions developed by companies themselves.

Keywords: chat API, activity feed, messaging, real-time, in-app communication, API-first, developer tools, scalable, subscription, enterprise