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buildpacks-io
buildpacks-io
Cloud Native Buildpacks (CNB) is a CNCF Incubating project that transforms application source code into OCI images that can run on any cloud. The v3 specification — Buildpack API 0.12, Platform API 0.15, and Distribution API 0.3 — defines a modular, vendor-neutral contract between buildpacks, builders, lifecycles, and platforms. CNB consolidates a decade of production experience from Heroku and Pivotal/Cloud Foundry and provides the reference lifecycle (buildpacksio/lifecycle), the `pack` CLI, language bindings (libcnb in Go/Rust/.NET), the Kubernetes-native `kpack` platform, the public community registry at registry.buildpacks.io, and an open RFC-driven governance model.
buildpacks-io publishes 2 APIs on the APIs.io network: Buildpacks API and Search API.
The buildpacks-io catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
buildpacks-io’s developer surface includes developer portal, documentation, getting-started guide, release notes, engineering blog, tooling, code examples, and 39 more developer resources.
8 APIs
20 Features
On this page
Kin Score
APIs 8
Open Collections 1
Features 20
Vocabularies 1
Spectral Rules 2
JSON Schema 4
JSON Structure 1
Examples 2
Security Posture 1
Agentic Access 1
Resources 46
apis.yml
26 Operational Transparency
Composite quality — 45.2/100 · developing
Contract Quality
18.0 / 25
Developer Ergonomics
10.0 / 20
Commercial Clarity
0.0 / 20
Operational Transparency
3.4 / 13
Agent readiness — 20/100 · 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
7 / 7
Rate-Limit Signaling
0 / 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
Individual APIs this provider publishes, each with its own machine-readable definition.
Scroll for all 8
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Notable capabilities this provider offers.
Buildpack API 0.12 — modular detect/build contract producing OCI layers without Dockerfiles
Platform API 0.15 — lifecycle orchestration surface (analyze, detect, restore, extend, build, export, rebase, launch)
Distribution API 0.3 — OCI-packaged buildpacks, extensions, and builders
Image extensions — Dockerfile snippets applied by the `extender` for base-image customization
Project Descriptor (project.toml) — declarative app-side build configuration
Build plan with provides/requires reconciliation across composite (meta) buildpacks
Per-layer caching with launch/build/cache types in `.toml`
Rebase — swap run image base layers in seconds without rebuilding app layers
Targets (os/arch/distros) replacing the legacy stacks model since Buildpack API 0.12
Per-layer SBOM emission in CycloneDX, SPDX, and Syft formats; aggregated into io.buildpacks.build.metadata
Standard OCI image labels (io.buildpacks.lifecycle.metadata, io.buildpacks.build.metadata, io.buildpacks.project.metadata, io.buildpacks.rebasable)
Reference lifecycle distributed as buildpacksio/lifecycle Docker image
Reference CLI `pack` (v0.40.6, May 2026) implementing the Platform Interface Specification
Public community registry at registry.buildpacks.io with `pack buildpack register/pull/yank`
Language bindings via libcnb (Go), libcnb-rs (Rust), and libcnb.net (.NET)
Kubernetes-native platform via kpack with Image/Builder/Stack CRDs
CI integrations — GitHub Actions, CircleCI Orb, GitLab Auto DevOps, Tekton, Project Piper
Multi-arch builders (linux/amd64, linux/arm64, windows) selected via target reconciliation
Service Bindings extension aligned with the Service Binding Specification for Kubernetes
Vendor-neutral CNCF Incubating project (incubation since 2018-10) with public RFC process
Scroll for all 20
JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral governance rulesets for linting and validating these APIs.
Standalone JSON Schema definitions for this provider's data models.
JSON Structure definitions describing this provider's data shapes.
Example request and response payloads for these APIs.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Recommended x-agentic-access execution contracts for AI agents.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 8
Reference material describing how the API behaves
Scroll for all 8
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 3
Pagination, idempotency, versioning, errors, and events
Build 11
SDKs, sample code, and the tooling you integrate with
Scroll for all 11
Access & Security 1
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 6
Status, limits, changes, and where to get help
Company 1
The organization behind the API
Other 11
Properties that don't map to a standard resource type
Scroll for all 11
Source (apis.yml)
aid: buildpacks-io
accessModel:
pricing: unknown
onboarding: unknown
trial: false
try_now: false
public: false
label: Unknown
confidence: low
source: []
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/buildpacks-io.png
url: https://raw.githubusercontent.com/api-evangelist/buildpacks-io/refs/heads/main/apis.yml
apis:
- aid: buildpacks-io:buildpack-spec
name: Buildpack Specification
tags:
- Cloud Native Buildpacks
- Buildpack API
- Specification
- CNCF
humanURL: https://github.com/buildpacks/spec/blob/main/buildpack.md
properties:
- url: https://github.com/buildpacks/spec/blob/main/buildpack.md
type: Documentation
- url: https://github.com/buildpacks/spec
type: Repository
- url: json-schema/buildpacks-buildpack-toml-schema.json
type: JSONSchema
- url: json-schema/buildpacks-build-plan-schema.json
type: JSONSchema
- url: json-schema/buildpacks-launch-toml-schema.json
type: JSONSchema
- url: json-structure/buildpacks-io-structure.json
type: JSONStructure
- url: json-ld/buildpacks-io-context.jsonld
type: JSONLD
description: The Buildpack API (currently 0.12) defines the contract between an individual buildpack and the lifecycle.
It specifies the on-disk layout of a buildpack (buildpack.toml, bin/detect, bin/build), the build plan provides/requires
graph, layer types (launch/build/cache), launch.toml and build.toml outputs, target declarations (os/arch/distros), SBOM
emission, and the CNB_* environment variable contract.
- aid: buildpacks-io:platform-spec
name: Platform Specification
tags:
- Cloud Native Buildpacks
- Platform API
- Specification
- CNCF
humanURL: https://github.com/buildpacks/spec/blob/main/platform.md
properties:
- url: https://github.com/buildpacks/spec/blob/main/platform.md
type: Documentation
- url: https://github.com/buildpacks/spec
type: Repository
- url: json-structure/buildpacks-io-structure.json
type: JSONStructure
description: The Platform API (currently 0.15) defines how platforms (pack, kpack, Tekton Pipelines, GitLab Auto DevOps,
CircleCI Orb, Project Piper) orchestrate the lifecycle. Specifies the lifecycle binary surface (analyzer, detector, restorer,
extender, builder, exporter, creator, rebaser, launcher), the TOML files exchanged on disk (group.toml, plan.toml, order.toml,
run.toml, metadata.toml, report.toml, analyzed.toml, project-metadata.toml), the standard io.buildpacks.* OCI image labels,
and runtime process selection.
- aid: buildpacks-io:distribution-spec
name: Distribution Specification
tags:
- Cloud Native Buildpacks
- Distribution
- OCI
- CNCF
humanURL: https://github.com/buildpacks/spec/blob/main/distribution.md
properties:
- url: https://github.com/buildpacks/spec/blob/main/distribution.md
type: Documentation
- url: https://github.com/buildpacks/spec
type: Repository
description: The Distribution API (currently 0.3) defines how buildpacks, extensions, and builders are packaged as OCI artifacts
and published to OCI registries. Covers labels (io.buildpacks.buildpack.api, io.buildpacks.buildpack.layers), multi-buildpack
OCI artifacts, and image extension distribution.
- aid: buildpacks-io:image-extension-spec
name: Image Extension Specification
tags:
- Cloud Native Buildpacks
- Image Extension
- Dockerfile
- Specification
humanURL: https://github.com/buildpacks/spec/blob/main/image_extension.md
properties:
- url: https://github.com/buildpacks/spec/blob/main/image_extension.md
type: Documentation
- url: https://github.com/buildpacks/spec
type: Repository
description: Image extensions emit Dockerfile snippets applied by the `extender` lifecycle binary to the build and/or run
image. Share the buildpack surface (extension.toml, bin/detect, bin/generate) but produce Dockerfile output instead of
layers — enabling base-image customization (apt packages, native libs) inside a buildpacks workflow.
- aid: buildpacks-io:project-descriptor-spec
name: Project Descriptor (project.toml)
tags:
- Cloud Native Buildpacks
- Project Descriptor
- App Surface
humanURL: https://github.com/buildpacks/spec/blob/main/extensions/project-descriptor.md
properties:
- url: https://github.com/buildpacks/spec/blob/main/extensions/project-descriptor.md
type: Documentation
- url: json-schema/buildpacks-project-toml-schema.json
type: JSONSchema
description: The Project Descriptor extension defines project.toml — the optional app-root file letting developers declare
their builder image, include/exclude globs, buildpack overrides (pre/group/post), and build-time env vars. Read by `pack
build` and other platforms before invoking the lifecycle.
- aid: buildpacks-io:service-bindings-spec
name: Service Bindings Extension
tags:
- Cloud Native Buildpacks
- Service Bindings
- Kubernetes
humanURL: https://github.com/buildpacks/spec/blob/main/extensions/bindings.md
properties:
- url: https://github.com/buildpacks/spec/blob/main/extensions/bindings.md
type: Documentation
description: The Service Bindings extension specifies how external service credentials and configuration are surfaced to
detect and build under $CNB_PLATFORM_DIR/bindings/. Aligns with the Service Binding Specification for Kubernetes and lets
buildpacks discover databases, message brokers, and CA bundles without provider coupling.
- aid: buildpacks-io:buildpacks-io-buildpacks-api
name: buildpacks-io Buildpacks API
description: Retrieve buildpack version metadata
humanURL: https://github.com/buildpacks/spec/blob/main/buildpack.md
tags:
- Buildpacks
properties:
- type: OpenAPI
url: openapi/buildpacks-io-buildpacks-api-openapi.yml
- type: Documentation
url: https://github.com/buildpacks/spec/blob/main/extensions/buildpack-registry.md
- type: Portal
url: https://registry.buildpacks.io
- type: Repository
url: https://github.com/buildpacks/registry-index
- type: Repository
url: https://github.com/buildpacks/registry-api
- type: Examples
url: examples/buildpacks-registry-search-example.json
- type: Examples
url: examples/buildpacks-registry-version-example.json
- aid: buildpacks-io:buildpacks-io-search-api
name: buildpacks-io Search API
description: Search the buildpack registry by keyword
humanURL: https://github.com/buildpacks/spec/blob/main/buildpack.md
tags:
- Search
properties:
- type: OpenAPI
url: openapi/buildpacks-io-search-api-openapi.yml
- type: Documentation
url: https://github.com/buildpacks/spec/blob/main/extensions/buildpack-registry.md
- type: Portal
url: https://registry.buildpacks.io
- type: Repository
url: https://github.com/buildpacks/registry-index
- type: Repository
url: https://github.com/buildpacks/registry-api
- type: Examples
url: examples/buildpacks-registry-search-example.json
- type: Examples
url: examples/buildpacks-registry-version-example.json
common:
- type: AgenticAccess
url: agentic-access/buildpacks-io-agentic-access.yml
- type: DomainSecurity
url: security/buildpacks-io-domain-security.yml
- url: https://buildpacks.io
type: Portal
- url: https://buildpacks.io/docs/
type: Documentation
- url: https://buildpacks.io/docs/concepts/
name: Concepts
type: Documentation
- url: https://buildpacks.io/docs/for-app-developers/
name: For App Developers
type: Documentation
- url: https://buildpacks.io/docs/for-buildpack-authors/
name: For Buildpack Authors
type: Documentation
- url: https://buildpacks.io/docs/for-platform-operators/
name: For Platform Operators
type: Documentation
- url: https://buildpacks.io/docs/reference/
name: Reference
type: Documentation
- url: https://buildpacks.io/docs/app-journey
name: An App's Brief Journey from Source to Image
type: GettingStarted
- url: https://buildpacks.io/community/
type: Community
- url: https://buildpacks.io/releases/
name: Releases
type: ReleaseNotes
- url: https://medium.com/buildpacks
name: Buildpacks on Medium
type: Blog
- url: https://www.youtube.com/@buildpacks
type: VideoChannel
- url: https://twitter.com/buildpacks_io
type: SocialMedia
- url: https://github.com/buildpacks
name: Cloud Native Buildpacks GitHub
type: GitHubOrganization
- url: https://github.com/buildpacks-community
name: CNB Community GitHub
type: GitHubOrganization
- url: https://github.com/buildpacks/spec
name: Buildpacks Specification
type: Repository
- url: https://github.com/buildpacks/rfcs
name: Buildpacks RFCs
type: Repository
- url: https://github.com/buildpacks/community
name: Community Repository
type: Repository
- url: https://github.com/buildpacks/community/blob/main/GOVERNANCE.md
type: Governance
- url: https://github.com/buildpacks/community/blob/main/ROADMAP.md
type: RoadMap
- url: https://github.com/buildpacks/community/blob/main/TEAMS.md
name: Teams
type: Documentation
- url: https://github.com/buildpacks/community/blob/main/ADOPTERS.md
name: Adopters
type: CaseStudies
- url: https://github.com/buildpacks/pack
name: pack CLI
type: Tools
- url: https://github.com/buildpacks/lifecycle
name: lifecycle
type: Tools
- url: https://hub.docker.com/r/buildpacksio/lifecycle
name: buildpacksio/lifecycle Docker image
type: ContainerImage
- url: https://github.com/buildpacks/libcnb
name: libcnb (Go)
type: SDKs
- url: https://github.com/buildpacks/libcnb-rs
name: libcnb (Rust)
type: SDKs
- url: https://github.com/buildpacks-community/libcnb.net
name: libcnb (.NET)
type: SDKs
- url: https://github.com/buildpacks/samples
name: Samples
type: CodeExamples
- url: https://github.com/buildpacks/github-actions
name: GitHub Actions for Buildpacks
type: Tools
- url: https://github.com/buildpacks/pack-orb
name: pack CircleCI Orb
type: Tools
- url: https://github.com/buildpacks-community/kpack
name: kpack (Kubernetes)
type: Tools
- url: https://github.com/buildpacks/registry-index
name: Registry Index
type: Repository
- url: https://github.com/buildpacks/registry-api
name: Registry API
type: Repository
- url: https://registry.buildpacks.io
name: Buildpack Registry
type: Portal
- url: https://buildpacks.devstats.cncf.io/
name: CNCF DevStats
type: Analytics
- url: https://www.cncf.io/projects/buildpacks/
name: CNCF Incubating Project Page
type: Documentation
- url: https://lists.cncf.io/g/cncf-buildpacks
type: MailingList
- url: https://slack.cncf.io
name: CNCF Slack (#buildpacks)
type: Forums
- url: https://github.com/buildpacks/community/discussions
type: Forums
- url: https://stackoverflow.com/questions/tagged/buildpack
name: Stack Overflow — buildpack tag
type: Forums
- type: Features
data:
- Buildpack API 0.12 — modular detect/build contract producing OCI layers without Dockerfiles
- Platform API 0.15 — lifecycle orchestration surface (analyze, detect, restore, extend, build, export, rebase, launch)
- Distribution API 0.3 — OCI-packaged buildpacks, extensions, and builders
- Image extensions — Dockerfile snippets applied by the `extender` for base-image customization
- Project Descriptor (project.toml) — declarative app-side build configuration
- Build plan with provides/requires reconciliation across composite (meta) buildpacks
- Per-layer caching with launch/build/cache types in `<layer>.toml`
- Rebase — swap run image base layers in seconds without rebuilding app layers
- Targets (os/arch/distros) replacing the legacy stacks model since Buildpack API 0.12
- Per-layer SBOM emission in CycloneDX, SPDX, and Syft formats; aggregated into io.buildpacks.build.metadata
- Standard OCI image labels (io.buildpacks.lifecycle.metadata, io.buildpacks.build.metadata, io.buildpacks.project.metadata,
io.buildpacks.rebasable)
- Reference lifecycle distributed as buildpacksio/lifecycle Docker image
- Reference CLI `pack` (v0.40.6, May 2026) implementing the Platform Interface Specification
- Public community registry at registry.buildpacks.io with `pack buildpack register/pull/yank`
- Language bindings via libcnb (Go), libcnb-rs (Rust), and libcnb.net (.NET)
- Kubernetes-native platform via kpack with Image/Builder/Stack CRDs
- CI integrations — GitHub Actions, CircleCI Orb, GitLab Auto DevOps, Tekton, Project Piper
- Multi-arch builders (linux/amd64, linux/arm64, windows) selected via target reconciliation
- Service Bindings extension aligned with the Service Binding Specification for Kubernetes
- Vendor-neutral CNCF Incubating project (incubation since 2018-10) with public RFC process
sources:
- https://buildpacks.io/
- https://buildpacks.io/docs/
- https://github.com/buildpacks/spec
- https://github.com/buildpacks/rfcs
- https://github.com/buildpacks/community
- https://www.cncf.io/projects/buildpacks/
updated: '2026-05-25'
- url: vocabulary/buildpacks-io-vocabulary.yml
type: Vocabulary
- url: rules/buildpacks-io-rules.yml
type: SpectralRules
- url: json-ld/buildpacks-io-context.jsonld
type: JSONLD
created: '2026-05-25'
modified: '2026-05-25'
position: Producing
description: Cloud Native Buildpacks (CNB) is a CNCF Incubating project that transforms application source code into OCI images
that can run on any cloud. The v3 specification — Buildpack API 0.12, Platform API 0.15, and Distribution API 0.3 — defines
a modular, vendor-neutral contract between buildpacks, builders, lifecycles, and platforms. CNB consolidates a decade of
production experience from Heroku and Pivotal/Cloud Foundry and provides the reference lifecycle (buildpacksio/lifecycle),
the `pack` CLI, language bindings (libcnb in Go/Rust/.NET), the Kubernetes-native `kpack` platform, the public community
registry at registry.buildpacks.io, and an open RFC-driven governance model.
maintainers:
- FN: Kin Lane
email: info@apievangelist.com
X: apievangelist
url: https://apievangelist.com
specificationVersion: '0.16'