IONOS CLOUD API Reference

Browse IONOS CLOUD REST APIs and OpenAPI specs. Find base URLs, authentication, and product API references.

Use these APIs to provision compute, storage, networking, databases, and observability resources.

• Common base URL: https://api.ionos.com/
• Auth: Authorization: Bearer <access_token> (see Getting Started)

Start with Getting Started for base URLs, authentication, and your first request.

Start here

Getting Started

Base URL, token generation, and a working curl example.

Authentication (Auth API)

Generate access tokens for API calls.

Cloud API v6

Core cloud resources like datacenters, servers, and volumes.

Browse APIs by product

Pick a product API below.

Each API doc includes its base URL, supported auth method, version, and endpoints.

AI

AI Model Hub OpenAI-compatible API

Interact with AI models using the OpenAI-compatible API on IONOS CLOUD.

Compute Services

Compute Engine

Provision and manage virtual machines and core compute resources.

Cubes

Manage cube instances.

Cloud GPU VMs

Provision GPU-enabled virtual machines.

VM Auto Scaling

Automatically scale virtual machines based on demand.

Containers

Managed Kubernetes

Deploy and manage Kubernetes clusters on IONOS CLOUD.

Private Container Registry

Manage Docker and OCI-compliant registries.

Data Analytics

Event Streams for Apache Kafka

Manage and interact with Kafka event streams.

Managed Stackable Data Platform

Manage your Stackable Data Platform environment.

Databases

In-Memory DB

Create and manage Redis® clusters.

MariaDB

Create and manage MariaDB clusters.

MongoDB V1

Manage MongoDB databases on the cloud with the v1 API.

PostgreSQL V1

Create and manage PostgreSQL clusters with the v1 API.

PostgreSQL V2

Create and manage PostgreSQL clusters with the v2 API.

Network Services

API Gateway

Manage and configure API gateway instances.

CDN

Manage and configure CDN distributions.

Certificate Manager

Provision and manage TLS certificates.

Cloud DNS

Manage DNS zones and records.

Cross Connect

Manage physical cross-connects between networks.

Flow Logs

Capture and analyze network flow logs.

Managed Application Load Balancer

Configure and manage application load balancers.

Managed NAT Gateway

Manage NAT gateways for private networks.

Managed Network Load Balancer

Configure and manage network load balancers.

Network Security Groups

Manage security groups for network traffic control.

VPN Gateway

Manage and configure VPN gateways.

Observability

Activity Log

Audit user activities and resource changes.

Logging Service

Observe, search, and filter logs.

Monitoring Service

Ingest, aggregate, and analyze monitoring data.

Monitoring as a Service (Legacy)

Legacy monitoring API.

Storage & Backup

Backup Service

Manage and configure backup services for your resources.

IONOS Object Storage

Store, retrieve, and delete objects.

IONOS Object Storage Management

Manage object storage resources.

IONOS Object Storage (contract-owned buckets)

S3-compatible API for contract-owned buckets (HMAC).

IONOS Object Storage (user-owned buckets)

S3-compatible API for user-owned buckets (HMAC).

Network File Storage

Manage shared file storage via NFS.

Security

Auth

Generate access tokens for secure API access.

Identity

Manage IAM resources and password policies.

Billing & Management

Billing

Retrieve resource usage and invoices.

Reseller

Manage contracts and admin users.