Inngest

What is Inngest?

Inngest is a developer platform that lets you build products without managing infrastructure for queues, concurrency, retries, error handling, or prioritization. It supports complex text generation, Retrieval Augmented Generation (RAG) via vector store queries, ingestion functions, and state tracking across workflows.

Key features include:

• Automatic retries for tasks
• Durable sleep, so functions can pause for extended periods
• Concurrency management, throttling, rate limiting, and debouncing
• Declarative job cancellation and custom failure handling
• Pausing functions to wait for additional input
• Batching for heavy loads and function replay

Inngest works with any backend, and developers have praised its efficiency, clear communication, ease of use, and stability.

Who created Inngest?

Tony Holdstock-Brown is the founder and current CEO of Inngest. The team also includes Dan Farrelly (CTO & Founder) and Jack Williams (Founding Engineer), along with other engineers, designers, and developers.

Inngest is built to simplify building and managing reliable workflows without infrastructure management, whether your team is small or large, experienced or just starting out. The core of the platform is open source. The company secured $6.1 million in funding, with a16z leading the round, and has support from well-known tech investors.

What is Inngest used for?

• Build LLM apps without extra infrastructure or complex glue code
• Handle complex text generation with chain-based post-processing and RAG
• Wrap steps so functions run once and maintain state, with concurrency limits and job priorities
• Ensure reliability with automatic retries, durable sleep, and concurrency management
• Customize behavior with concurrency limits, throttling, rate limiting, debouncing, cancellations, and failure handling
• Pause, batch, and replay functions as needed
• Estimate step usage based on how many messages your queues and cron jobs process
• Get technical support through plans that can include SLAs, dedicated Slack channels, integrations, and compliance options

Who is Inngest for?

Inngest is aimed at developers, software and AI engineers, system architects, DevOps and data engineers, CTOs, designers, and Dev Rel professionals.