Omnara, by the Omnara team: an open-source home for long-running agents
One API call creates an agent, and Omnara gives it sandboxes, secrets, permissions and the usual harness tools, on the model you pick and on your own servers if you like. The design is the interesting part: every step an agent takes is appended to a log in Postgres and any free worker can run the next one, so an agent outlives crashes and redeploys and holds no worker while it waits. Apache 2.0, with a hosted version as well.
Made by the Omnara team. Kartik from Omnara posted it to Hacker News: news.ycombinator.com/item?id=50183892