Durable background functions with automatic retries and observability
Inngest lets you write reliable background functions in any language that run in response to events, on a schedule, or as multi-step workflows. Functions run durably with automatic retries, full execution history, and real-time observability. Deploy alongside your existing code — no queues, workers, or infrastructure to manage. Works with any hosting platform including serverless.
Pricing
freemium
50k function runs/month
Difficulty
low
~10 min setup
Ease score
98 / 100
agent-friendliness
Auth
api key
INNGEST_EVENT_KEY
Completeness
88%
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typescript
npm:inngest
python
pip:inngest
go
go:github.com/inngest/inngest
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Privacy-first web analytics — one script, no cookies, no consent banners. GDPR/CCPA/ePrivacy compliant out of the box.
Inngest functions are served at a single HTTP endpoint in your app. The local dev server (npx inngest-cli dev) enables offline development with a full UI. Use `step.run()` for durable steps, `step.sleep()` for durable waits, and `step.waitForEvent()` to pause until a future event. INNGEST_EVENT_KEY sends events; INNGEST_SIGNING_KEY authenticates Inngest calling your endpoint.