> For the complete documentation index, see [llms.txt](https://docs.ionos.com/cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ionos.com/cloud/api-reference/cloud-api-v6.md).

# Cloud API V6

Cloud API V6 is IONOS CLOUD's core infrastructure REST API. It covers compute, containers, networking, and backup resources as a single unified OpenAPI specification.

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>Get started</strong></mark></td><td>Authentication, base URL, and a working API example.</td><td><a href="/cloud/api-reference/readme/getting-started.md">Getting Started</a></td></tr><tr><td><mark style="color:blue;"><strong>API Status</strong></mark></td><td>Check service availability and current incidents.</td><td><a href="https://status.ionos.cloud/">https://status.ionos.cloud/</a></td></tr></tbody></table>

**Base URL:** `https://api.ionos.com/cloudapi/v6`\
**Auth:** Bearer token (`Authorization: Bearer <access_token>`) or Basic Auth (`Authorization: Basic <base64(username:password)>`)

## Why a single spec?

Cloud API V6 was designed as a unified spec because the products it covers share a common foundation: the same base URL (`/cloudapi/v6`), the same datacenter resource model, the same authentication method, and the same asynchronous request lifecycle.

Products such as Managed Kubernetes, Cross Connect, Flow Logs, and Backup Service are all managed through endpoints under `/cloudapi/v6` and are defined within this single specification. Newer IONOS CLOUD services, such as CDN, VPN Gateway, and database services, are published as separate standalone API specifications with their own base URLs and versioning.

Navigation entries in the sidebar and product cards on the portal landing page link directly to the relevant tag section within this spec rather than to a separate API.

## Products covered

| Product                           | API section                                                                                                              |
| --------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| Compute Engine                    | [Servers](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/servers)                                               |
| Cubes                             | [Templates](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/templates)                                           |
| Cloud GPU VMs                     | [Graphics Processing Unit cards](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/graphics-processing-unit-cards) |
| Managed Kubernetes                | [Kubernetes](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/kubernetes)                                         |
| Cross Connect                     | [Cross Connects](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/cross-connects)                                 |
| Flow Logs                         | [Flow Logs](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/flow-logs)                                           |
| Managed Application Load Balancer | [Application Load Balancers](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/application-load-balancers)         |
| Managed NAT Gateway               | [NAT Gateways](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/nat-gateways)                                     |
| Managed Network Load Balancer     | [Network Load Balancers](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/network-load-balancers)                 |
| Network Security Groups           | [Security Groups](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/security-groups)                               |
| Backup Service                    | [Backup Service](https://docs.ionos.com/cloud/api-reference/cloud-api-v6/backup-service)                                 |

{% hint style="info" %}
The full list of available endpoints, request/response schemas, and models is rendered in the API reference sidebar under **Cloud API V6**.
{% endhint %}


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