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

# Includes

> Include related data in API responses

## Overview

Use the `include` query parameter when you need related data alongside the resources you request. This lets you get that data in the same response and keep responses smaller when you do not need it.

Each endpoint's API reference lists the relationships it supports and the fields they add. Includes are only available on endpoints that document the `include` parameter.

## Supported routes

| Endpoint        | Supported includes |
| --------------- | ------------------ |
| `GET /v1/posts` | `labels`           |

## Query format

Pass `include` once, using a comma-separated list of supported relationship names. Whitespace around names is ignored; repeating a name does not duplicate the included data.

Unsupported names, empty values, and repeated `include` query parameters return `400`. Use only the names listed in the endpoint's reference.

## Response behavior

Includes add related data to each returned resource. They do not change which resources match your request. When you omit `include`, you get the endpoint's default response.

The endpoint's response schema describes the included fields and what to expect when related data is unavailable.

## Pagination

Follow the response's `next` URL to keep includes on subsequent pages. See [Pagination](pagination) for the response format.