Metal3 website screenshot

Metal3

Metal3 (Metal Kubed) is a CNCF incubating project that provides bare metal host provisioning for Kubernetes. It leverages Ironic for hardware management and integrates with the Cluster API to enable Kubernetes-native lifecycle management of bare metal infrastructure. Metal3 automates server discovery, inspection, provisioning, and deprovisioning using Kubernetes custom resources.

Metal3 publishes 1 API on the APIs.io network. Tagged areas include Bare Metal, Cloud Native, Incubating, Infrastructure, and Kubernetes.

Metal3’s developer surface includes documentation, engineering blog, and 2 more developer resources.

🌐 Visit website 📡 Source on GitHub
21.5/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemium
1 APIs
Bare MetalCloud NativeIncubatingInfrastructureKubernetesProvisioning

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 21.5/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 6.7 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/metal3-io: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Metal3 BareMetalHost API

Metal3 extends Kubernetes with the BareMetalHost custom resource for managing physical servers. The API supports hardware inventory discovery, firmware configuration, BIOS setti...

Pricing Plans 1

Published pricing tiers and plan structures.

Metal3 Io Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Metal3 Io Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Metal3 Io Finops

FINOPS

Security Posture 1

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

Metal3 Io Domain Security

TLSv1.3

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg
GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: metal3-io
name: Metal3
description: Metal3 (Metal Kubed) is a CNCF incubating project that provides bare metal host provisioning for Kubernetes.
  It leverages Ironic for hardware management and integrates with the Cluster API to enable Kubernetes-native lifecycle management
  of bare metal infrastructure. Metal3 automates server discovery, inspection, provisioning, and deprovisioning using Kubernetes
  custom resources.
url: https://metal3.io
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/metal3-io.png
tags:
- Bare Metal
- Cloud Native
- Incubating
- Infrastructure
- Kubernetes
- Provisioning
created: '2026-03-16'
modified: '2026-04-28'
specificationVersion: '0.19'
type: Index
apis:
- aid: metal3-io:metal3-api
  name: Metal3 BareMetalHost API
  description: Metal3 extends Kubernetes with the BareMetalHost custom resource for managing physical servers. The API supports
    hardware inventory discovery, firmware configuration, BIOS settings, RAID configuration, and OS provisioning. Combined
    with Cluster API, it enables declarative management of bare metal Kubernetes clusters.
  humanURL: https://metal3.io/documentation.html
  properties:
  - type: Documentation
    url: https://metal3.io/documentation.html
  tags:
  - Bare Metal
  - Hardware Management
  - Provisioning
common:
- type: DomainSecurity
  url: security/metal3-io-domain-security.yml
- type: Documentation
  name: Metal3 Documentation
  description: Official Metal3 documentation.
  url: https://metal3.io/documentation.html
- type: GitHubOrg
  name: Metal3 GitHub
  description: Source code repositories.
  url: https://github.com/metal3-io
- url: https://metal3.io/feed.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com