---
description: Core Miniflare features for testing Cloudflare Workers, including fetch events and compatibility settings.
title: Core
image: https://developers.cloudflare.com/og-docs.png
---

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> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/workers/llms.txt  
> Use this file to discover all available pages before exploring further.

# Core

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/index.md)|[Agent setup](https://9a51ac8b.previews.developers.cloudflare.com/agent-setup/)

* [Compatibility Dates](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/compatibility/)
* [Fetch Events](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/fetch/)
* [Modules](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/modules/)
* [Multiple Workers](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/multiple-workers/)
* [Queues](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/queues/)
* [Scheduled Events](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/scheduled/)
* [Variables and Secrets](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/variables-secrets/)
* [Web Standards](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/standards/)
* [WebSockets](https://9a51ac8b.previews.developers.cloudflare.com/workers/testing/miniflare/core/web-sockets/)

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