---
title: "STACKIT Functions"
description: "Serverless FaaS runtime powered by Knative for auto-scaling stateless code execution down to zero."
scfAsset:
  category: "service"
  managed: true
  marketplaceUrl: "https://marketplace.stackit.cloud/en/products"
  tags: ["Functions", "Serverless", "FaaS", "Knative", "Event-Driven"]
  maintainers:
    - user: "alexander.gabert"
source_url: "https://framework.stackit.cloud/architecture/assetcontainer/stackit/stackit-service-functions/"
source_file: "docs/architecture/assetcontainer/stackit/stackit-service-functions.mdx"
---

STACKIT Functions delivers serverless event-driven execution for stateless application logic.

## Service Overview
- **Scale to Zero**: Automatically scales function instances up with incoming request volume and down to zero when idle.
- **Pure Code Focus**: Developers publish code snippets without managing containers or cluster nodes.
- **Event-Driven**: Natively triggers execution from HTTP webhooks and cloud event pipelines.

## Technical Details
- **Architecture**: Powered by Knative running on STACKIT Kubernetes infrastructure.
- **Management**: Managed via `sfn` CLI tool and STACKIT Portal.

## Limitations & Constraints
- **Stateless Execution**: Functions must remain stateless; execution memory and temporary local files persist only per invocation.

<LinkCard title="STACKIT Functions Documentation" href="https://docs.stackit.cloud" />