Canonical website screenshot

Canonical

Canonical is the company behind Ubuntu, the world's most popular open source operating system for cloud, servers, desktops, IoT, and Kubernetes. Canonical publishes a broad set of developer APIs spanning the Ubuntu and Canonical ecosystem — the Snap Store and Snapcraft, the Charmhub charm marketplace, LXD system containers, MAAS bare-metal provisioning, Juju orchestration, Launchpad project hosting, Ubuntu Pro subscription services, and Landscape systems management — most of which are RESTful, open, and well documented.

Canonical publishes 3 APIs on the APIs.io network: Assertions API, Search API, and Snaps API. Tagged areas include Cloud, Linux, Open Source, Ubuntu, and Containers.

Canonical’s developer surface includes documentation, engineering blog, and 12 more developer resources.

34.9/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
11 APIs
CloudLinuxOpen SourceUbuntuContainersBare MetalCharmsIdentity

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 34.9/100 · thin
Contract Quality 11.5 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 6.5 / 10
Agent readiness — 22/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 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/canonical: 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 11

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

Snap Store API

The public Snap Store Device API (api.snapcraft.io) serves information about snaps, revisions, channels, tracks, assertions, and refresh state to snap clients. The Snapcraft Das...

Charmhub API

Developer-facing REST API for Charmhub, Canonical's marketplace for charms (Kubernetes and machine operators). Supports charm discovery, publishing, release channels, and token ...

snapd REST API

The local REST API exposed by snapd over a Unix domain socket on every Ubuntu system running snaps. Enables local clients and tools to query snap state, install / refresh / remo...

MAAS API

The RESTful API for MAAS (Metal as a Service). Everything the MAAS UI can do — commissioning, allocation, deployment, DHCP/DNS, tags, zones, pools, users, machines — is availabl...

Juju Client / Controller API

Juju is Canonical's open-source orchestration engine for deploying, integrating, scaling, and managing applications on clouds, MAAS, LXD, and Kubernetes via charms. Juju clients...

Launchpad Web Services API

Launchpad exposes a RESTful Web Services API over its project hosting, bug tracking, code, builds, translations, and distribution data. The API is authenticated with OAuth; anon...

Ubuntu Pro Client API

The Ubuntu Pro client exposes a local API/CLI for managing Ubuntu Pro subscription services on a host — enabling, disabling, and inspecting Extended Security Maintenance (ESM), ...

Landscape API

Canonical Landscape is the systems-management platform for Ubuntu at scale. Its API lets operators manage and automate inventories, upgrades, patch compliance, reboots, scripts,...

Canonical Assertions API

The Assertions API from Canonical — 1 operation(s) for assertions.

Canonical Search API

The Search API from Canonical — 1 operation(s) for search.

Canonical Snaps API

The Snaps API from Canonical — 10 operation(s) for snaps.

Scroll for all 11

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Canonical Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Security Posture 1

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

Canonical Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Canonical Agentic Access

12 operations · 5 acting

12 operations · 5 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Learn 1

Tutorials, courses, talks, and written guidance

Commercial 2

Pricing, plans, and the legal terms of use

Company 4

The organization behind the API

Other 3

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: canonical
name: Canonical
url: https://raw.githubusercontent.com/api-evangelist/canonical/refs/heads/main/apis.yml
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/canonical.png
type: Index
tags:
- Cloud
- Linux
- Open Source
- Ubuntu
- Containers
- Bare Metal
- Charms
- Identity
access: Open
created: '2026-03-16'
modified: '2026-04-23'
position: Provider
specificationVersion: '0.19'
description: Canonical is the company behind Ubuntu, the world's most popular open source operating system for cloud, servers,
  desktops, IoT, and Kubernetes. Canonical publishes a broad set of developer APIs spanning the Ubuntu and Canonical ecosystem
  — the Snap Store and Snapcraft, the Charmhub charm marketplace, LXD system containers, MAAS bare-metal provisioning, Juju
  orchestration, Launchpad project hosting, Ubuntu Pro subscription services, and Landscape systems management — most of which
  are RESTful, open, and well documented.
apis:
- aid: canonical:snap-store-api
  name: Snap Store API
  description: The public Snap Store Device API (api.snapcraft.io) serves information about snaps, revisions, channels, tracks,
    assertions, and refresh state to snap clients. The Snapcraft Dashboard API (dashboard.snapcraft.io) lets snap publishers
    manage releases, brand stores, and snap metadata programmatically.
  humanURL: https://api.snapcraft.io/docs/
  baseURL: https://api.snapcraft.io
  tags:
  - Snaps
  - Store
  - Packaging
  properties:
  - type: Documentation
    url: https://api.snapcraft.io/docs/
  - type: DashboardAPI
    url: https://dashboard.snapcraft.io/docs/reference/v2/en/index.html
  - type: HowTo
    url: https://snapcraft.io/docs/using-the-api
- aid: canonical:charmhub-api
  name: Charmhub API
  description: Developer-facing REST API for Charmhub, Canonical's marketplace for charms (Kubernetes and machine operators).
    Supports charm discovery, publishing, release channels, and token exchange — macaroons issued by dashboard.snapcraft.io
    SSO are exchanged for Charmhub developer tokens used in the Authorization header.
  humanURL: https://api.charmhub.io/docs/default.html
  baseURL: https://api.charmhub.io
  tags:
  - Charms
  - Operators
  - Kubernetes
  properties:
  - type: Documentation
    url: https://api.charmhub.io/docs/default.html
  - type: Portal
    url: https://charmhub.io/
- aid: canonical:snapd-rest-api
  name: snapd REST API
  description: The local REST API exposed by snapd over a Unix domain socket on every Ubuntu system running snaps. Enables
    local clients and tools to query snap state, install / refresh / remove snaps, manage interfaces and connections, and
    read system information.
  humanURL: https://snapcraft.io/docs/reference/development/snapd-rest-api/
  tags:
  - Local
  - System
  - Snaps
  properties:
  - type: Documentation
    url: https://snapcraft.io/docs/reference/development/snapd-rest-api/
  - type: HowTo
    url: https://snapcraft.io/docs/how-to-guides/snap-development/use-the-rest-api/
- aid: canonical:maas-api
  name: MAAS API
  description: The RESTful API for MAAS (Metal as a Service). Everything the MAAS UI can do — commissioning, allocation, deployment,
    DHCP/DNS, tags, zones, pools, users, machines — is available through the API, making bare- metal infrastructure programmable
    and suitable for Infrastructure as Code workflows. Python and CLI bindings are provided.
  humanURL: https://canonical.com/maas/docs/api
  baseURL: https://<maas-host>/MAAS/api/2.0
  tags:
  - Bare Metal
  - Provisioning
  - Infrastructure
  properties:
  - type: Documentation
    url: https://canonical.com/maas/docs/api
  - type: Overview
    url: https://canonical.com/maas
  - type: Portal
    url: https://maas.io/docs
- aid: canonical:juju-api
  name: Juju Client / Controller API
  description: Juju is Canonical's open-source orchestration engine for deploying, integrating, scaling, and managing applications
    on clouds, MAAS, LXD, and Kubernetes via charms. Juju clients communicate with a controller over a websocket-based API;
    Python and Go libraries plus the juju CLI consume this API.
  humanURL: https://documentation.ubuntu.com/juju/
  tags:
  - Orchestration
  - DevOps
  - Charms
  properties:
  - type: Documentation
    url: https://documentation.ubuntu.com/juju/
  - type: Overview
    url: https://canonical.com/juju
  - type: Architecture
    url: https://canonical.com/juju/juju-architecture
- aid: canonical:launchpad-api
  name: Launchpad Web Services API
  description: Launchpad exposes a RESTful Web Services API over its project hosting, bug tracking, code, builds, translations,
    and distribution data. The API is authenticated with OAuth; anonymous access gives read-only access to public data. The
    launchpadlib Python library is the officially supported client.
  humanURL: https://documentation.ubuntu.com/launchpad/user/how-to/launchpad-api/
  baseURL: https://api.launchpad.net/
  tags:
  - OAuth
  - Open Source
  - Project Hosting
  properties:
  - type: Documentation
    url: https://documentation.ubuntu.com/launchpad/user/how-to/launchpad-api/
  - type: Reference
    url: https://help.launchpad.net/API
  - type: SDKs
    url: https://launchpadlib.readthedocs.io/en/latest/introduction.html
  - type: Portal
    url: https://api.launchpad.net/
- aid: canonical:ubuntu-pro-api
  name: Ubuntu Pro Client API
  description: The Ubuntu Pro client exposes a local API/CLI for managing Ubuntu Pro subscription services on a host — enabling,
    disabling, and inspecting Extended Security Maintenance (ESM), Livepatch, FIPS, compliance tooling (CIS, DISA-STIG), USG,
    and Landscape integration.
  humanURL: https://documentation.ubuntu.com/pro/
  tags:
  - ESM
  - Livepatch
  - FIPS
  - Compliance
  - Subscription
  properties:
  - type: Documentation
    url: https://documentation.ubuntu.com/pro/
  - type: ClientDocs
    url: https://documentation.ubuntu.com/pro-client/en/latest/
  - type: Portal
    url: https://ubuntu.com/pro
- aid: canonical:landscape-api
  name: Landscape API
  description: Canonical Landscape is the systems-management platform for Ubuntu at scale. Its API lets operators manage and
    automate inventories, upgrades, patch compliance, reboots, scripts, monitoring, and alerts across fleets of Ubuntu machines
    (on-prem, hybrid, or hosted Landscape SaaS).
  humanURL: https://ubuntu.com/landscape/docs
  tags:
  - Systems Management
  - Patch Management
  - Fleet
  properties:
  - type: Documentation
    url: https://ubuntu.com/landscape/docs
  - type: Portal
    url: https://ubuntu.com/landscape
- aid: canonical:canonical-assertions-api
  name: Canonical Assertions API
  description: The Assertions API from Canonical — 1 operation(s) for assertions.
  humanURL: https://api.snapcraft.io/docs/
  baseURL: https://api.snapcraft.io
  tags:
  - Assertions
  properties:
  - type: OpenAPI
    url: openapi/canonical-assertions-api-openapi.yml
  - type: Documentation
    url: https://documentation.ubuntu.com/lxd/latest/rest-api/
  - type: Reference
    url: https://linuxcontainers.org/lxd/rest-api/
- aid: canonical:canonical-search-api
  name: Canonical Search API
  description: The Search API from Canonical — 1 operation(s) for search.
  humanURL: https://api.snapcraft.io/docs/
  baseURL: https://api.snapcraft.io
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/canonical-search-api-openapi.yml
  - type: Documentation
    url: https://documentation.ubuntu.com/lxd/latest/rest-api/
  - type: Reference
    url: https://linuxcontainers.org/lxd/rest-api/
- aid: canonical:canonical-snaps-api
  name: Canonical Snaps API
  description: The Snaps API from Canonical — 10 operation(s) for snaps.
  humanURL: https://api.snapcraft.io/docs/
  baseURL: https://api.snapcraft.io
  tags:
  - Snaps
  properties:
  - type: OpenAPI
    url: openapi/canonical-snaps-api-openapi.yml
  - type: Documentation
    url: https://documentation.ubuntu.com/lxd/latest/rest-api/
  - type: Reference
    url: https://linuxcontainers.org/lxd/rest-api/
common:
- type: AgenticAccess
  url: agentic-access/canonical-agentic-access.yml
- type: DomainSecurity
  url: security/canonical-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/canonical
- type: Website
  url: https://canonical.com/
- type: UbuntuWebsite
  url: https://ubuntu.com/
- type: Documentation
  url: https://documentation.ubuntu.com/
- type: GitHubOrg
  url: https://github.com/canonical
- type: SnapStore
  url: https://snapcraft.io/
- type: Charmhub
  url: https://charmhub.io/
- type: Launchpad
  url: https://launchpad.net/
- type: DiscourseForum
  url: https://discourse.ubuntu.com/
- type: DataPrivacy
  url: https://ubuntu.com/legal/data-privacy
- type: TermsOfService
  url: https://ubuntu.com/legal/terms
- type: Integrations
  url: https://canonical.com/partners
- url: https://canonical.com/blog/feed/
  type: Blog
integrations:
- name: Desktop Desktop, laptops and workstations
- name: Channel/reseller Partners on every continent
- name: IoT devices Robots, edge, development boards
- name: IHV/OEM Data centres
- name: ISVs Independent Software Vendors
- name: GSIs Global Systems Integrators
- name: Silicon CPUs, boards and SoCs
- name: Become a partner
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com