Trigger.dev

What it does

Trigger.dev is the open source platform for building AI agents in TypeScript. It runs long-running tasks with retries, queues, scheduled cron jobs, human-in-the-loop approvals, and real-time streaming to frontends. Tasks run on managed workers, and you pay only when your code is executing.

Trigger.dev is a platform for developers who write tasks in TypeScript inside a Trigger folder. It runs those tasks on managed workers with automatic retries, queues, and no timeouts. The homepage shows AI agents, media processing, human-in-the-loop approvals, and streaming LLM responses to a frontend. Realtime streams forward output from any provider through the Realtime API. Observability and monitoring cover logs, tracing, alerts, and run filters. The pricing page lists a Free plan at $0 per month with $5 per month in free credits, 20 concurrent runs, and 1 day log retention. Paid plans add credits, concurrency, and longer retention. Compute is billed per second by machine size, and each run invocation costs $0.000025. The project is Apache 2.0 licensed, so you can view the source, contribute, and self-host. A careful reader should compare compute and run invocation costs, since total spend depends on execution time and machine size.