Trigger.dev

Trigger.dev provides an open-source platform for developers to build and deploy AI agents and long-running workflows in TypeScript. It handles retries, queues, scaling and observability, supporting tasks such as media processing, browser automation and human approvals. Developers can use managed infrastructure or self-host. Realtime sends task progress and model output to application interfaces, while chat.agent gives each conversation a stateful machine that sleeps between turns, with durable streaming and AI SDK integration.

Founded in 2022 by Matt Aitken, Eric Allam, Dan Patel and James Ritchie, Trigger.dev is led by Aitken as CEO and Allam as CTO. The founders previously built JSON Hero, an open-source JSON viewer. Its 2024 v3 architecture introduced container checkpointing using the existing Linux CRIU tool to pause and resume ordinary asynchronous code, without charging for compute while waiting. Its Realtime infrastructure uses PostgreSQL replication and ElectricSQL to deliver task-state changes to browsers.

In December 2025, the company reported more than 30,000 developers using Trigger.dev to execute hundreds of millions of agents each month, with applications including MagicSchool’s teaching assistants, Icon.com’s advertising tools and DavidAI’s audio datasets. That month, it raised a $16 million Series A led by Standard Capital, with participation from Y Combinator and other investors.