# Cloud Native Buildpacks

**Canonical:** https://apis.io/providers/cloud-native-buildpacks/  
**Website:** https://buildpacks.io/  
**APIs profiled:** 7

Cloud Native Buildpacks (CNB) is a CNCF-graduated specification and set of tooling for transforming application source code into OCI images that can run on any cloud. The project unifies the Heroku and Cloud Foundry buildpack ecosystems around an open standard for detection, build, and image export. The reference implementation lifecycle, the pack CLI for local builds, the kpack server-side builder, and a registry of distribution buildpacks together form the CNB ecosystem. CNB is built around a documented Buildpack API, Platform API, and Distribution API, all versioned and published in the github.com/buildpacks specifications.

## Kin Score — 19.0 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 19.0).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 7.0 |
| Governance | 54.5 |
| Contract Governance | 54.5 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (7)

- **Buildpack API** — The Buildpack API is the contract between a buildpack and the lifecycle. It defines the detect and build executables, layers, build-plan provisions and requirements, and image e...
- **Platform API** — The Platform API is the contract between the CNB lifecycle and a platform such as pack, kpack, or a CI runner. It defines how builders, stacks, run images, and inputs are passed...
- **Distribution API** — The Distribution API specifies how buildpacks and builders are packaged as OCI artifacts, signed, and distributed through OCI registries. It also covers how meta-buildpacks comp...
- **pack CLI** — pack is the reference command-line interface for Cloud Native Buildpacks. It implements the Platform API to build OCI images from source on a developer's workstation, manages bu...
- **CNB Lifecycle** — The CNB Lifecycle is the reference implementation of the Buildpack and Platform APIs. It runs the detect, analyze, restore, build, export, and rebase phases used by all CNB plat...
- **kpack** — kpack is a community Kubernetes-native implementation of Cloud Native Buildpacks. It exposes Image, Builder, ClusterBuilder, and ClusterStack custom resources for declaring cont...
- **Buildpack Registry** — The Cloud Native Buildpacks registry indexes published buildpacks for discovery and reuse. It mirrors metadata for buildpack packages stored in OCI registries and exposes a brow...

## Security (1)

- **Cloud Native Buildpacks Domain Security** — TLSv1.3 · HSTS

## Tags

Buildpacks, CNCF, Containers, Image, OCI, Open-Source, Platform, Reproducible Builds

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/cloud-native-buildpacks/). Scores are computed from the provider's own public artifacts under a published rubric.