Trigger.dev

Trigger.dev is an open-source platform for building durable AI agents and background jobs in TypeScript, with a free tier available. It handles long-running tasks with retries, queues, observability, and elastic scaling. Core capabilities include durable AI agents that survive redeploys, human-in-the-loop approvals, streaming responses to frontends, scheduled cron tasks, and concurrency controls. The free plan offers 20 concurrent runs, unlimited tasks, and 5 team members. It fits developers and solopreneurs building AI workflows that need reliability, such as email sequences, media processing, browser automation, and semantic search.