Werf website screenshot

Werf

Werf is an open-source CNCF sandbox project providing a complete GitOps-based CI/CD solution for Kubernetes. It implements the full application delivery lifecycle — building images, managing dependencies, deploying Helm charts, and cleaning up container registries — using Git as the single source of truth (Giterminism). Werf integrates natively with all major CI systems, Buildah, Helm, and Kubernetes.

Werf is profiled on the APIs.io network. Tagged areas include CI/CD, Deployment, DevOps, GitOps, and Kubernetes.

Werf’s developer surface includes documentation, getting-started guide, CLI, changelog, support, and 9 more developer resources.

15.6/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs 7 Features 5 Use Cases
CI/CDDeploymentDevOpsGitOpsKubernetesCNCFHelmContainersOpen Source

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 15.6/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 6.1 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/werf: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Features 7

Notable capabilities this provider offers.

Giterminism

Uses Git as the single source of truth, ensuring all CI/CD configurations are reproducible and auditable from version control.

Incremental Builds

Rebuilds only modified components and reuses existing container registry layers, dramatically reducing build times.

Kubernetes Deployment

Manages Helm chart deployments to Kubernetes with built-in rollback, planning, and drift detection (werf converge, werf plan, werf rollback).

Container Registry Cleanup

Automatically cleans up stale images from container registries using Git history-aware policies (werf cleanup, werf purge).

Helm Integration

Full Helm chart management including rendering, linting, bundling, and deploying with werf helm command suite.

Multi-CI Support

Native integration with GitHub Actions, GitLab CI, CircleCI, Jenkins, and other CI systems via werf ci-env.

Secure Software Delivery

TRDL component provides TUF-based secure software update distribution with GPG signature verification.

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Security Posture 1

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

Werf Domain Security

TLSv1.3

SECURITY

Use Cases 5

What developers build with this provider.

Kubernetes Application Delivery

Build, test, and deploy containerized applications to Kubernetes clusters using GitOps principles.

Monorepo CI/CD

Manage CI/CD pipelines for monorepo projects with independent image tagging and selective component redeployment.

Helm Chart Management

Package, bundle, and deploy Helm charts with integrated dependency management and Kubernetes compatibility checks.

Container Registry Management

Automate container image lifecycle from build to cleanup using content-based tagging and Git-aware retention policies.

Secure Software Distribution

Distribute software updates securely using TUF framework with TRDL, ensuring integrity and authenticity of delivered artifacts.

Integrations 7

Pre-built integrations with other platforms and tools.

GitHub Actions

Native GitHub Actions for incorporating werf into GitHub-hosted CI/CD pipelines.

GitLab CI

First-class support for GitLab CI/CD environment variables and pipeline integration.

Helm

Deep integration with Helm package manager for Kubernetes, extending it with werf-specific deployment guarantees.

Buildah

Uses Buildah for rootless, daemonless OCI image builds without requiring Docker.

Kubernetes

Direct integration with Kubernetes API for deploying, monitoring, and managing application resources.

OCI Registries

Compatible with all OCI-compliant container registries including Docker Hub, GHCR, GitLab Registry, and cloud registries.

CNCF Ecosystem

CNCF Sandbox project integrating with the broader cloud-native ecosystem including Flux CD and other CNCF tools.

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Resources

Get Started 1

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Build 8

SDKs, sample code, and the tooling you integrate with

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Access & Security 1

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: werf
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/werf.png
name: Werf
description: Werf is an open-source CNCF sandbox project providing a complete GitOps-based CI/CD solution for Kubernetes.
  It implements the full application delivery lifecycle — building images, managing dependencies, deploying Helm charts, and
  cleaning up container registries — using Git as the single source of truth (Giterminism). Werf integrates natively with
  all major CI systems, Buildah, Helm, and Kubernetes.
type: Index
url: https://werf.io/
tags:
- CI/CD
- Deployment
- DevOps
- GitOps
- Kubernetes
- CNCF
- Helm
- Containers
- Open Source
created: '2025'
modified: '2026-05-03'
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/werf-domain-security.yml
- type: Website
  url: https://werf.io/
- type: Documentation
  url: https://werf.io/docs/v2/
- type: GettingStarted
  url: https://werf.io/getting_started/
- type: GitHubOrganization
  url: https://github.com/werf
- type: GitHubRepository
  url: https://github.com/werf/werf
- type: CLI
  url: https://github.com/werf/werf
  title: Werf CLI
- type: GitHubRepository
  url: https://github.com/werf/nelm
  title: Nelm (Helm 4 Alternative)
- type: GitHubRepository
  url: https://github.com/werf/kubedog
  title: Kubedog Kubernetes Watch Library
- type: GitHubRepository
  url: https://github.com/werf/trdl
  title: TRDL Secure Software Delivery
- type: GitHubRepository
  url: https://github.com/werf/actions
  title: GitHub Actions Integration
- type: GitHubRepository
  url: https://github.com/werf/nelm-chart-ts-sdk
  title: Nelm Chart TypeScript SDK
- type: ChangeLog
  url: https://github.com/werf/werf/releases
- type: Support
  url: https://github.com/werf/werf/discussions
- type: Features
  data:
  - name: Giterminism
    description: Uses Git as the single source of truth, ensuring all CI/CD configurations are reproducible and auditable
      from version control.
  - name: Incremental Builds
    description: Rebuilds only modified components and reuses existing container registry layers, dramatically reducing build
      times.
  - name: Kubernetes Deployment
    description: Manages Helm chart deployments to Kubernetes with built-in rollback, planning, and drift detection (werf
      converge, werf plan, werf rollback).
  - name: Container Registry Cleanup
    description: Automatically cleans up stale images from container registries using Git history-aware policies (werf cleanup,
      werf purge).
  - name: Helm Integration
    description: Full Helm chart management including rendering, linting, bundling, and deploying with werf helm command suite.
  - name: Multi-CI Support
    description: Native integration with GitHub Actions, GitLab CI, CircleCI, Jenkins, and other CI systems via werf ci-env.
  - name: Secure Software Delivery
    description: TRDL component provides TUF-based secure software update distribution with GPG signature verification.
- type: UseCases
  data:
  - name: Kubernetes Application Delivery
    description: Build, test, and deploy containerized applications to Kubernetes clusters using GitOps principles.
  - name: Monorepo CI/CD
    description: Manage CI/CD pipelines for monorepo projects with independent image tagging and selective component redeployment.
  - name: Helm Chart Management
    description: Package, bundle, and deploy Helm charts with integrated dependency management and Kubernetes compatibility
      checks.
  - name: Container Registry Management
    description: Automate container image lifecycle from build to cleanup using content-based tagging and Git-aware retention
      policies.
  - name: Secure Software Distribution
    description: Distribute software updates securely using TUF framework with TRDL, ensuring integrity and authenticity of
      delivered artifacts.
- type: Integrations
  data:
  - name: GitHub Actions
    description: Native GitHub Actions for incorporating werf into GitHub-hosted CI/CD pipelines.
  - name: GitLab CI
    description: First-class support for GitLab CI/CD environment variables and pipeline integration.
  - name: Helm
    description: Deep integration with Helm package manager for Kubernetes, extending it with werf-specific deployment guarantees.
  - name: Buildah
    description: Uses Buildah for rootless, daemonless OCI image builds without requiring Docker.
  - name: Kubernetes
    description: Direct integration with Kubernetes API for deploying, monitoring, and managing application resources.
  - name: OCI Registries
    description: Compatible with all OCI-compliant container registries including Docker Hub, GHCR, GitLab Registry, and cloud
      registries.
  - name: CNCF Ecosystem
    description: CNCF Sandbox project integrating with the broader cloud-native ecosystem including Flux CD and other CNCF
      tools.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com