StepKit, an open and cross-platform durable execution standard

In plain words

StepKit is an open-source SDK and framework for building durable workflows that run across any platform—including self-hosted environments, Inngest, Cloudflare, and Netlify—without platform-specific code. Built on Apache 2 license, it extracts and exposes the execution loop from Inngest's production system. The framework is designed for developers who need portable, reliable workflow execution and want to avoid vendor lock-in or learning multiple SDK versions.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hi HN! I’m Tony, one of the co-founders of Inngest (https://inngest.com/). Wanted to show you something we’re working on: StepKit. StepKit is an open source SDK and framework for building and iterating on durable workflows that run on any platform (self-hosted, Inngest, Cloudflare, Netlify, etc.)…

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