# Resource Tagging

Attach key-value metadata to Cloudflare resources for organization, access control, and billing attribution

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>
> For other Cloudflare products, see the [Cloudflare documentation directory](https://developers.cloudflare.com/llms.txt).
>
> Use [Resource Tagging llms-full.txt](https://developers.cloudflare.com/resource-tagging/llms-full.txt) for the complete Resource Tagging documentation in a single file, intended for offline indexing, bulk vectorization, or large-context models.

## Overview

- [Resource Tagging](https://developers.cloudflare.com/resource-tagging/index.md)

## Get started

- [Get started](https://developers.cloudflare.com/resource-tagging/get-started/index.md): Set up authentication for Resource Tagging and make your first API calls.

## how-to

- [Filter resources by tag](https://developers.cloudflare.com/resource-tagging/how-to/filter-resources/index.md): Query tagged resources using the tag filtering syntax.
- [Manage tags](https://developers.cloudflare.com/resource-tagging/how-to/manage-tags/index.md): Create, update, and delete tags on Cloudflare resources.

## reference

- [Error codes](https://developers.cloudflare.com/resource-tagging/reference/error-codes/index.md): Tagging API error codes, causes, and resolutions.
- [Limits and validation](https://developers.cloudflare.com/resource-tagging/reference/limits/index.md): API limits, tag key validation rules, and pagination behavior.
- [Supported resource types](https://developers.cloudflare.com/resource-tagging/reference/resource-types/index.md): Resource types that support tagging and their required fields.