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.
Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.
API Evangelist profiles Canonical the way a machine reads it — 37 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Canonical scores 64.4/100 (strong), with a separate agent-readiness read of 43/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-10 · rubric v0.20.0
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How we profile Canonical
Each block below is one kind of artifact we hold for Canonical. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 22
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
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.
LXD REST API
The REST API used by every LXD client. LXD is Canonical's system container and virtual machine manager; the API is available over a local unix+http socket and over remote https,...
Ubuntu Security API
An open, unauthenticated API over Canonical's vulnerability data — Ubuntu Security Notices (USNs), CVE records with CVSS3 scoring, and per-release support status. Canonical publ...
Pebble API
Pebble is Canonical's lightweight service manager, used inside snaps, ROCKs and Kubernetes charm workloads. It exposes a local REST API over a unix socket for managing services,...
Testflinger API
Testflinger is Canonical's hardware test-orchestration service. Its REST API accepts test jobs against named device queues, reports job status and results, serves build artifact...
Ubuntu Hardware API (hwapi)
The Ubuntu hardware certification API. Given a machine's hardware identifiers it reports whether that configuration is certified for Ubuntu and on which releases. Serves its own...
Canonical Identity Platform API
The API of Canonical's Identity Platform — an OIDC/OAuth 2.0 identity provider built on Ory and delivered as a Juju charm bundle. Covers identities, clients, schemas, providers,...
Test Observer API
Test Observer is Canonical's dashboard for tracking test execution across Ubuntu artefacts — snaps, debs, charms and images — through their release stages. The backend publishes...
Anbox Cloud AMS API
The external REST API of the Anbox Management Service (AMS), the control plane of Canonical's Anbox Cloud product for running Android at scale. Covers applications, images, inst...
Anbox Stream Gateway API
The Anbox Cloud streaming control API — creates and manages streaming sessions between clients and Android instances, plus the accounts, applications and configuration behind th...
COS Registration Server API
Part of the Canonical Observability Stack for robotics and edge fleets. The registration server API registers devices and manages their per-application configuration — Grafana d...
MicroCeph REST API
MicroCeph is Canonical's opinionated, snap-delivered Ceph distribution. It publishes a small OpenAPI 3.1.0 contract for its cluster REST surface. Recorded here because it is a r...
Scroll within the panel for all 22 ·
Open Collections 5
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONCanonical Snap Store Device Assertions API
OPEN COLLECTIONCanonical Snap Store Device Assertions Search API
OPEN COLLECTIONCanonical Snap Store Device Assertions Snaps API
OPEN COLLECTIONCanonical Snap Store Device API
OPEN COLLECTIONPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Canonical Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Canonical Finops
FINOPSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Canonical Launchpad Webhooks
ASYNCAPISecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Canonical — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 8
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 8 ·
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 8
Authentication, authorization, and security posture
Scroll within the panel for all 8 ·
Learn 1
Tutorials, courses, talks, and written guidance
Operate 5
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 4
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/canonical · machine-readable index on apis.io
This is an independent, third-party profile of Canonical, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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