# buildpacks-io

**Canonical:** https://apis.io/providers/buildpacks-io/  
**Website:** https://buildpacks.io  
**APIs profiled:** 8

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.

## Kin Score — 39.9 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 39.9).

| Facet | Score |
|---|---|
| Discoverability | 55.6 |
| Contract Quality | 67.8 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 54.8 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 22.7 (agent-aware)

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

## Access

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

## APIs (8)

- **Buildpack Specification** — 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/de...
- **Platform Specification** — 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...
- **Distribution Specification** — 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...
- **Image Extension Specification** — 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/...
- **Project Descriptor (project.toml)** — The Project Descriptor extension defines project.toml — the optional app-root file letting developers declare their builder image, include/exclude globs, buildpack overrides (pr...
- **Service Bindings Extension** — 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 S...
- **buildpacks-io Buildpacks API** — Retrieve buildpack version metadata
- **buildpacks-io Search API** — Search the buildpack registry by keyword

## Agentic access (1)

- **Buildpacks Io Agentic Access** — 3 operations

## Security (1)

- **Buildpacks Io Domain Security** — TLSv1.3 · HSTS

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