# Blacksmith Docker Builds

**Canonical:** https://apis.io/apis/blacksmith-sh/docker-builds/  
**Provider:** Blacksmith — https://apis.io/providers/blacksmith-sh/  
**Base URL:** https://app.blacksmith.sh  
**Documentation:** https://docs.blacksmith.sh/blacksmith-caching/docker-builds

Blacksmith Docker Builds is one of 5 APIs that [Blacksmith](https://apis.io/providers/blacksmith-sh/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Docker, BuildKit, Layer Caching, and Builds. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

Accelerated Docker image builds via Blacksmith's BuildKit and the useblacksmith/build-push-action and useblacksmith/setup-docker-builder GitHub Actions, reusing cached layers on sticky disks to rebuild only what changed - up to 40x faster. Used as GitHub Actions in a workflow, not via a public REST API.

## Machine-readable artifacts (2)

- **Documentation** — https://docs.blacksmith.sh/blacksmith-caching/docker-builds
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/blacksmith-sh/refs/heads/main/openapi/_original/blacksmith-sh-openapi.yml

## Other Blacksmith APIs (4)

- [Blacksmith GitHub Actions Runners](https://apis.io/apis/blacksmith-sh/github-actions-runners/)
- [Blacksmith Cache](https://apis.io/apis/blacksmith-sh/cache/)
- [Blacksmith Testbox CLI](https://apis.io/apis/blacksmith-sh/testbox-cli/)
- [Blacksmith Dashboard and Observability](https://apis.io/apis/blacksmith-sh/dashboard/)

## Tags

Docker, BuildKit, Layer Caching, Builds

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/blacksmith-sh/docker-builds/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/blacksmith-sh/.