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.

Get started

Authentication, base URL, and a working API example.

API Status

Check service availability and current incidents.

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
Cubes	Templates
Cloud GPU VMs	Graphics Processing Unit cards
Managed Kubernetes	Kubernetes
Cross Connect	Cross Connects
Flow Logs	Flow Logs
Managed Application Load Balancer	Application Load Balancers
Managed NAT Gateway	NAT Gateways
Managed Network Load Balancer	Network Load Balancers
Network Security Groups	Security Groups
Backup Service	Backup Service

The full list of available endpoints, request/response schemas, and models is rendered in the API reference sidebar under Cloud API V6.