Inngest

The product is an observable execution layer for agents, workflows, background jobs, and event-driven functions that provides durable execution, automatic retries, state persistence, and replay without managing workers or queues. It sells to software developers and engineering teams in B2B companies of all sizes building AI agents and long-running workflows. Durability and observability are positioned as code primitives that run on top of existing codebases rather than as separate infrastructure, available as open core for self-hosting or as a managed cloud service on any compute platform.

Key features

• durable execution with step retries
• step.run for background work
• step.waitForEvent with timeout
• flow control with rate limits
• per-tenant concurrency and throttling
• agent observability and tracing
• replay executions and steps
• outcome-based scoring and evals
• event fan-out and tracking
• schedules with automatic recovery
• realtime channels and subscriptions
• Insights SQL querying over runs