Stripe is an Irish-American financial services and software as a service company dual-headquartered in South San Francisco, California, United States and Dublin, Ireland. The company primarily offers payment processing software and APIs for e-commerce websites and mobile applications.

Apache Kafka is a distributed event store and stream-processing platform. It is an open-source system developed by the Apache Software Foundation written in Java and Scala. The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds. Kafka can connect to external systems (for data import/export) via Kafka Connect, and provides the Kafka Streams libraries for stream processing applications.