Cadence is an open-source workflow orchestration service. It is a scalable, fault-tolerant, and developer-focused platform that centralizes business logic and allows you to build complex workflows that integrate with your distributed service architecture.

Developers face steep difficulty in building modern high-scale distributed applications, which require them to wrangle long-running business processes, internal services, and third-party APIs to make them play well together. Designing those convoluted interactions forces developers to solve puzzles and carefully build numerous connections, with complex states to track, responses to asynchronous events to prepare, and communications to establish with external dependencies that often aren’t as reliable as hoped.