Y Combinator's Portfolio

▤ Summary

Castari is launching a new runtime for AI agents that need to run code, use browsers, and interact with filesystems in production. The platform packages each agent into a secure sandbox and exposes it through an auto-scaling endpoint with observability built in. The team is targeting AI developers who are rebuilding fragile infrastructure around agent deployment, scaling, and secret handling. Public beta is live now, so teams can try the CLI, docs, and deployment flow immediately.

▦ Linked Companies