---
title: "Cloudflare K2 - Serverless event streaming"
description: "K2 is serverless event streaming on Cloudflare. Produce, store, and consume event streams without provisioning brokers, sizing clusters, or managing partitions."
url: "https://www.cloudflare.com/products/k2"
---

# K2

> K2 enables applications to produce events to a durable, ordered stream. Subscribe to the stream with one or more consumers.

## Key Features

- Serverless event streams
- Durable storage with configurable retention
- Atomic batch writes
- Produce via Workers binding or HTTP
- Independent subscriptions
- At-least-once delivery

## Benefits

### Truly serverless

No clusters to manage or scale. Pay only for what you use.

### Long-term retention

Events are stored with configurable TTL, up to one month.

### Flexible consumption

Consume all events from multiple clients, distribute events across a cluster of clients, or both.

## Use Cases

### Real-time analytics pipelines

Collect clickstream, telemetry, and log events from browsers, Workers, and backend services, and process them as they arrive.

### Microservice event buses

Decouple services with a durable, ordered log. Every service can publish, and multiple consumers can read at their own pace.

## Resources

- [Full Documentation](https://developers.cloudflare.com/k2/): Complete technical documentation
- [Get Started](https://dash.cloudflare.com/sign-up): Sign up and start building
- [Pricing](/plans.md): See pricing details

## Related Products

- [Artifacts](/products/artifacts.md): Git-native versioned storage
- [Cache Reserve](/products/cache-reserve.md): Persistent caching for static content
- [D1](/products/d1.md): Serverless SQL
- [Basin](/products/data-platform.md): Ingest, manage & query analytics data

---

*This is a markdown version of [https://www.cloudflare.com/products/k2](https://www.cloudflare.com/products/k2) for AI/LLM consumption.*