---
title: "Sending API requests"
slug: "sending-api-requests"
updated: 2026-08-10T06:00:06Z
published: 2026-08-10T06:00:06Z
canonical: "apidocs.document360.com/sending-api-requests"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://apidocs.document360.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sending API requests

The Document360 v3 API is a JSON, HTTPS-only REST API. This article covers the base URL, supported methods, and required headers.

## Base URL

| Region | Base URL |
| --- | --- |
| Europe (default) | `https://apihub.document360.io` |
| United States | `https://apihub.us.document360.io` |
| Canada | `https://apihub.ca.document360.io` |

All v3 endpoints are project-scoped and follow this pattern:

```
https://apihub.document360.io/v3/projects/{project_id}/{resource}
```

## HTTP methods

| Method | Purpose |
| --- | --- |
| `GET` | Retrieve resources |
| `POST` | Create resources or perform actions such as publish, fork and bulk operations |
| `PATCH` | Partially update a resource — only the fields you send are changed |
| `PUT` | Replace a resource |
| `DELETE` | Remove a resource |

Note

Use `PATCH` for partial updates, for example when updating an article or its settings. Send only the fields you want to change.

## Required headers

| Header | Value |
| --- | --- |
| `X-API-Key` | `YOUR_API_KEY` — your API key, the standard way to authenticate |
| `Content-Type` | `application/json` for requests with a body |
| `Authorization` | `Bearer ACCESS_TOKEN` — only for OAuth 2.0 access tokens, such as the interactive API reference |

Note

Authenticate with your API key using the `X-API-Key` header. The `Authorization: Bearer` header is reserved for OAuth 2.0 access tokens.

## Query parameters

Query parameters use `snake_case`. Common parameters include:

| Parameter | Description |
| --- | --- |
| `lang_code` | ISO language code, for example `en` or `fr`. Defaults to the project's default language. |
| `page` / `page_size` | Offset pagination. `page` starts at 1; `page_size` defaults to 25 and caps at 100. |
| `cursor` | Opaque cursor for cursor-based pagination. |
| `include_total_count` | Set to `true` to include `total_count` in the pagination block. |

Tip

Do not expose your API key in public repositories, client-side code, or unauthorized environments.