# K2

A durable event stream

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## Overview

- [K2](https://developers.cloudflare.com/k2/index.md): Serverless durable logs

## Get started

- [Get started](https://developers.cloudflare.com/k2/get-started/index.md): Create a K2 stream, produce records over HTTP, and consume them through a subscription.

## Concepts

- [Concepts](https://developers.cloudflare.com/k2/concepts/index.md): Learn about the key ideas behind K2, including streams, records, subscriptions, and leases.

## Configuration

- [Configuration](https://developers.cloudflare.com/k2/configuration/index.md): Create, update, and delete K2 streams, and configure their inputs, authentication, CORS, and retention.

## features

- [Consume records](https://developers.cloudflare.com/k2/features/consume/index.md): Read records from a K2 stream through a subscription, and acknowledge them after processing.
- [Produce records](https://developers.cloudflare.com/k2/features/produce/index.md): Write records to a K2 stream over HTTP or from a Worker with a binding.

## platform

- [Limits](https://developers.cloudflare.com/k2/platform/limits/index.md): Account, stream, record, and consumer limits for Cloudflare K2.
- [Pricing](https://developers.cloudflare.com/k2/platform/pricing/index.md): K2 pricing for data produced, data consumed, and data retained.
- [Choose a data or storage product](https://developers.cloudflare.com/workers/platform/storage-options/index.md): Compare Cloudflare storage products including K2, Queues, R2, and Durable Objects to find the right fit.

## reference

- [Delivery guarantees](https://developers.cloudflare.com/k2/reference/delivery-guarantees/index.md): K2 delivers every record to every subscription at least once. Learn how subscriptions, leases, and retention affect delivery.