Temporal

Temporal runs long-lived workflows in code and guarantees they continue after crashes, restarts and network failures. You write ordinary functions in Go, Java, Python, TypeScript or .NET, and Temporal remembers where each execution left off.

This pattern is now popular for AI agents, since agent runs often take minutes, call flaky APIs and need to resume after errors. Companies use it for payments, order handling and data pipelines.

The learning curve is real, and it adds infrastructure to run. You can self-host the open-source server or use Temporal Cloud.