IONOS

IONOS is a global cloud provider offering web hosting, domain registration, cloud servers, and AI-driven services. It serves businesses of all sizes with scalable infrastructure, managed services, and a suite of tools for website creation, e‑commerce, and digital transformation. IONOS emphasizes security, performance, and customer support, providing solutions ranging from shared hosting to dedicated servers and GPU‑accelerated cloud instances.

IONOS is listed with 1 API on the APIs.io network. Tagged areas include Company, Cloud, Hosting, Domains, and Artificial Intelligence.

IONOS’s developer surface includes pricing, changelog, authentication, support, API reference, getting-started guide, documentation, and 24 more developer resources.

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20.6/100 emerging ▼ -8.9 Agent 11/100 agent aware Heartbeat 0/100 dormant Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Company Cloud Hosting Domains Artificial Intelligence

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 20.6/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 6.1 / 17

Access Clarity 2.7 / 17

Operational Transparency 1.5 / 11

Contract Governance 0.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 11/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 15.8 — up to +16.8 composite points
Developer Ergonomics scores 35.7 — up to +12.9 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/ionos/apis.yml: open an issue on github.com/api-evangelist/ionos to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Domains and DNS (registrars, registries, DNS)	standard	46.5	-	3
Network Edge (CDN, networking, peering, edge compute)	standard	46.5	-	3
Infrastructure-as-Code Provider Registries (Terraform, OpenTofu, Pulumi)	standard	46.5	-	3

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

IONOS Cloud API

Cloud API for managing IONOS resources

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ionos Authentication

3 schemes

SECURITY

Ionos Domain Security

TLSv1.2 · HSTS · DNSSEC · DMARC

SECURITY

Ionos Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

IntegrationEdges

IntegrationEdges

SDKs

SDKs

Packages

Packages

Access & Security 11

Authentication, authorization, and security posture

Authentication

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Scroll for all 11

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Newsroom

Newsroom

Website

Website

Other 3

Properties that don't map to a standard resource type

Vendors

Vendors

Hosts

Hosts

Leadership

Leadership

Source (apis.yml)

aid: ionos
name: IONOS
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://cs-us.uicdn.net/fileadmin/og_image/logo.png
description: IONOS is a global cloud provider offering web hosting, domain registration, cloud servers, and AI-driven services.
  It serves businesses of all sizes with scalable infrastructure, managed services, and a suite of tools for website creation,
  e‑commerce, and digital transformation. IONOS emphasizes security, performance, and customer support, providing solutions
  ranging from shared hosting to dedicated servers and GPU‑accelerated cloud instances.
url: https://raw.githubusercontent.com/api-evangelist/ionos/refs/heads/main/apis.yml
x-type: company
x-source: harvest:tag-qc
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-13'
modified: '2026-10-13'
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
tags:
- Company
- Cloud
- Hosting
- Domains
- Artificial Intelligence
tags_raw:
- Company
- Cloud
- Hosting
- Domains
- AI
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: IntegrationEdges
  url: integrations/ionos-integration-edges.yml
- type: Pricing
  url: https://price-calculator.cloud.ionos.com/
- type: Vendors
  url: vendors/ionos-vendors.yml
- type: ChangeLog
  url: changelog/ionos-changelog.yml
- type: Authentication
  url: authentication/ionos-authentication.yml
- type: Conformance
  url: conformance/ionos-conformance.yml
- type: LLMsTxt
  url: llms/ionos-llms.txt
- type: SecurityTxt
  url: well-known/ionos-security.txt
- type: SecurityTxt
  url: well-known/ionos-partnernetwork-security.txt
- type: SecurityTxt
  url: well-known/ionos-id-security.txt
- type: SecurityTxt
  url: well-known/ionos-feedback-security.txt
- type: SecurityTxt
  url: well-known/ionos-dcd-security.txt
- type: SecurityTxt
  url: well-known/ionos-cloud-security.txt
- type: SecurityTxt
  url: well-known/ionos-api-security.txt
- type: WellKnown
  url: well-known/ionos-well-known.yml
- type: Hosts
  url: hosts/ionos-hosts.yml
- type: SDKs
  url: packages/ionos-packages.yml
- type: Packages
  url: packages/ionos-packages.yml
- type: TermsOfService
  url: https://www.ionos.com/terms-gtc/terms-privacy/
- type: Support
  url: https://www.ionos.com/help/
- type: Security
  url: https://www.ionos.com/security/ev-ssl
- type: PrivacyPolicy
  url: https://www.ionos.com/terms-gtc/privacy-policy
- type: Newsroom
  url: https://www.ionos.com/newsroom/
- type: Leadership
  url: https://www.ionos.com/management
- type: ChangeLog
  url: https://docs.ionos.com/cloud/release-notes/previous-releases/2026/august-2026
- type: APIReference
  url: https://docs.ionos.com/cloud/api-reference
- type: GettingStarted
  url: https://docs.ionos.com/cloud/ai/mcp-server/quick-start
- type: Documentation
  url: https://docs.ionos.com/
- type: VulnerabilityDisclosure
  url: security/ionos-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/ionos-domain-security.yml
- type: Website
  url: https://www.ionos.com
apis:
- name: IONOS Cloud API
  description: Cloud API for managing IONOS resources
  humanURL: https://docs.ionos.com/cloud/api-reference
  aid: ionos:ionos-cloud-api
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The IONOS Cloud API documentation provides only HTML pages without a downloadable OpenAPI or other machine‑readable
    contract.
  evidence:
  - url: https://api.ionos.com/openapi.json
    status: 404
  - url: https://docs.ionos.com/cloud/api-reference
    status: 200
  checked: '2026-10-13'
x-enrichment:
  date: '2026-10-13'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

IONOS API — frequently asked questions

Does IONOS have an API?

Yes. APIs.io lists 1 API from IONOS, including IONOS Cloud API.

How do I authenticate with the IONOS API?

IONOS documents its authentication (3 schemes). The details are profiled on APIs.io as Ionos Authentication.

Is the IONOS API ready for AI agents?

IONOS has a Kin Score of 20.6 out of 100 (emerging) and an Agent Readiness score of 10.8 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

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How their score was established

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