ORAS website screenshot

ORAS

ORAS (OCI Registry As Storage) is a CNCF project that provides a CLI and a set of client libraries for pushing and pulling arbitrary OCI artifacts to and from OCI-compliant registries, allowing container registries to be used as a generic artifact distribution mechanism.

ORAS publishes 2 APIs on the APIs.io network. Tagged areas include Artifact Storage, Cloud-Native, Container Registry, and OCI.

ORAS’s developer surface includes documentation, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
12.4/100 emerging ▬ flat Agent 6/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreemium
2 APIs 1 MCP Servers
Artifact StorageCloud-NativeContainer RegistryOCI

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 12.4/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 2.9 / 20
Access Clarity 3.2 / 20
Operational Transparency 1.4 / 13
Contract Governance 0.0 / 12
Discoverability 5.0 / 10
Agent readiness — 6/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 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
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
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.
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 github.com/api-evangelist/oras: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

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

ORAS CLI

Generic command-line registry client used to push and pull OCI artifacts to and from any OCI-compliant container registry.

ORAS Client Libraries

Client libraries for building custom OCI artifact tools and integrations on top of ORAS, available across multiple language ecosystems including Go, Rust, Python, JavaScript, .N...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Oras Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Oras Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Oras Finops

FINOPS

Security Posture 1

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

Oras Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Community
Community

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

CNCF
CNCF

Source (apis.yml)

apis.yml Raw ↑ 
aid: oras
name: ORAS
description: ORAS (OCI Registry As Storage) is a CNCF project that provides a CLI and a set of client libraries for pushing
  and pulling arbitrary OCI artifacts to and from OCI-compliant registries, allowing container registries to be used as a
  generic artifact distribution mechanism.
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/oras.png
tags:
- Artifact Storage
- Cloud-Native
- Container Registry
- OCI
tags_raw:
- Artifact Storage
- Cloud Native
- Container Registry
- OCI
url: https://raw.githubusercontent.com/api-evangelist/oras/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: oras:cli
  name: ORAS CLI
  description: Generic command-line registry client used to push and pull OCI artifacts to and from any OCI-compliant container
    registry.
  humanURL: https://oras.land/docs/
  tags:
  - CLI
  - OCI
  - Artifacts
  properties:
  - type: Documentation
    url: https://oras.land/docs/
  - type: Installation
    url: https://oras.land/docs/installation
  - type: Commands
    url: https://oras.land/docs/commands/oras
  - type: Source Code
    url: https://github.com/oras-project/oras
- aid: oras:client-libraries
  name: ORAS Client Libraries
  description: Client libraries for building custom OCI artifact tools and integrations on top of ORAS, available across multiple
    language ecosystems including Go, Rust, Python, JavaScript, .NET, and Java.
  humanURL: https://oras.land/docs/client_libraries/overview
  tags:
  - SDK
  - Libraries
  - OCI
  properties:
  - type: Documentation
    url: https://oras.land/docs/client_libraries/overview
  - type: Go
    url: https://github.com/oras-project/oras-go
  - type: Rust
    url: https://github.com/oras-project/rust-oci-client
  - type: Python
    url: https://github.com/oras-project/oras-py
  - type: JavaScript
    url: https://github.com/oras-project/oras-js
common:
- type: DomainSecurity
  url: security/oras-domain-security.yml
- type: Website
  url: https://oras.land/
- type: Documentation
  url: https://oras.land/docs/
- type: GitHubOrganization
  url: https://github.com/oras-project
- type: Community
  url: https://oras.land/community/
- type: CNCF
  url: https://www.cncf.io/projects/oras/
- name: MCP Server
  url: https://github.com/oras-project/oras-mcp
  type: MCPServer
- url: https://oras.land/blog/atom.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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