Containerd website screenshot

Containerd

An industry-standard container runtime with an emphasis on simplicity, robustness and portability.

Containerd publishes 1 API on the APIs.io network: Metrics API. Tagged areas include Cloud-Native, Container Runtime, CRI, Docker, and gRPC.

The Containerd catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Containerd’s developer surface includes documentation, getting-started guide, changelog, and 14 more developer resources.

31.8/100 thin ▬ flat Agent 26/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
1 APIs
Cloud-NativeContainer RuntimeCRIDockergRPCKubernetesOCI

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.
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/containerd: 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 4

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

Containerd gRPC API

Core gRPC API for managing the full container lifecycle including containers, images, content, snapshots, namespaces, tasks, leases, events, and plugins. Provides low-level acce...

Containerd CRI API

Container Runtime Interface (CRI) implementation that enables Kubernetes to use containerd as its container runtime. Supports pod sandbox management, container lifecycle operati...

Containerd NRI API

The Node Resource Interface (NRI) is a framework for plugging extensions into OCI-compatible container runtimes. NRI plugins receive lifecycle event notifications and can make c...

Containerd Metrics API

Prometheus-compatible metrics endpoints exposing containerd runtime statistics including gRPC request rates, snapshot usage, and task lifecycle counts.

Open Collections 3

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

API Collection

OPEN COLLECTION

Containerd Metrics API

OPEN COLLECTION

Containerd Metrics API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Containerd Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Containerd Context

0 classes · 12 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Containerd API Rules

6 rules · 4 warnings 2 info

SPECTRAL

Containerd API Rules

7 rules · 4 errors 2 warnings 1 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Containerd Configuration

16 properties

JSON SCHEMA

OCI Runtime Specification

9 properties

JSON SCHEMA

Security Posture 1

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

Containerd Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Containerd Agentic Access

1 operation

1 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 4

Status, limits, changes, and where to get help

Commercial 1

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: containerd
name: Containerd
description: An industry-standard container runtime with an emphasis on simplicity, robustness and portability.
url: https://containerd.io/
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/containerd.png
tags:
- Cloud-Native
- Container Runtime
- CRI
- Docker
- gRPC
- Kubernetes
- OCI
tags_raw:
- Cloud Native
- Container Runtime
- CRI
- Docker
- gRPC
- Kubernetes
- OCI
created: '2025-01-01'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
apis:
- aid: containerd:containerd-grpc-api
  name: Containerd gRPC API
  description: Core gRPC API for managing the full container lifecycle including containers, images, content, snapshots, namespaces,
    tasks, leases, events, and plugins. Provides low-level access to all containerd functionality through Protocol Buffers
    service definitions.
  humanURL: https://github.com/containerd/containerd/tree/main/api
  properties:
  - type: Documentation
    url: https://containerd.io/docs/
  - type: Reference
    url: https://github.com/containerd/containerd/tree/main/api
  - type: JSONSchema
    url: json-schema/containerd-config-schema.json
  - type: JSONSchema
    url: json-schema/containerd-oci-runtime-spec-schema.json
  tags:
  - Container Runtime
  - gRPC
  - Lifecycle Management
- aid: containerd:containerd-cri-api
  name: Containerd CRI API
  description: Container Runtime Interface (CRI) implementation that enables Kubernetes to use containerd as its container
    runtime. Supports pod sandbox management, container lifecycle operations, image pulling, and streaming APIs for exec,
    attach, and port-forward.
  humanURL: https://github.com/containerd/containerd/tree/main/pkg/cri
  properties:
  - type: Documentation
    url: https://containerd.io/docs/
  - type: Reference
    url: https://github.com/containerd/containerd/tree/main/pkg/cri
  - type: JSONSchema
    url: json-schema/containerd-config-schema.json
  tags:
  - Container Runtime
  - CRI
  - Kubernetes
- aid: containerd:containerd-nri-api
  name: Containerd NRI API
  description: The Node Resource Interface (NRI) is a framework for plugging extensions into OCI-compatible container runtimes.
    NRI plugins receive lifecycle event notifications and can make controlled modifications to container configurations before
    creation, enabling domain-specific resource management without modifying the runtime itself.
  humanURL: https://github.com/containerd/nri
  properties:
  - type: Documentation
    url: https://github.com/containerd/containerd/blob/main/docs/NRI.md
  - type: GitHubRepository
    url: https://github.com/containerd/nri
  tags:
  - Extensibility
  - Kubernetes
  - NRI
  - Plugins
- aid: containerd:containerd-metrics-api
  name: Containerd Metrics API
  description: Prometheus-compatible metrics endpoints exposing containerd runtime statistics including gRPC request rates,
    snapshot usage, and task lifecycle counts.
  humanURL: https://github.com/containerd/containerd/tree/main/api
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/containerd-metrics-api-openapi.yml
  - type: Documentation
    url: https://containerd.io/docs/
common:
- type: IssueTracker
  url: https://github.com/containerd/nri/issues
- type: Releases
  url: https://github.com/containerd/nri/releases
- type: AgenticAccess
  url: agentic-access/containerd-agentic-access.yml
- type: DomainSecurity
  url: security/containerd-domain-security.yml
- type: Website
  url: https://containerd.io/
- type: Documentation
  url: https://containerd.io/docs/
- type: GettingStarted
  url: https://containerd.io/docs/getting-started/
- type: GitHubOrganization
  url: https://github.com/containerd
- type: GitHubRepository
  url: https://github.com/containerd/containerd
- type: ChangeLog
  url: https://github.com/containerd/containerd/releases
- type: Community
  url: https://cloud-native.slack.com/
- type: CNCF Project
  url: https://www.cncf.io/projects/containerd/
- type: License
  url: https://github.com/containerd/containerd/blob/main/LICENSE
- type: JSONLD
  url: json-ld/containerd-context.jsonld
- type: JSONSchema
  url: json-schema/containerd-config-schema.json
- type: JSONSchema
  url: json-schema/containerd-oci-runtime-spec-schema.json
- type: Spectral
  url: rules/containerd-rules.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
kind: opensource

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