Apollo Router is a free and open-source runtime for federated graphs, developed by Apollo. It provides performance and security features, but some advanced features are only available with a GraphOS subscription. The router's functionality can be configured in YAML, and it supports Rhai scripting and native Rust plugins. Apollo aims to remain commercially viable while facilitating open and collaborative development on the project through the use of an Elastic License v2. The company plans to involve its community in shaping the future of Apollo Router, with a goal of transparency and collaboration.