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About

Earthly Lunar is a guardrails engine for platform engineering teams that need to apply engineering standards consistently across repositories and CI/CD pipelines. It collects signals from code, configuration, dependencies, tests, builds, and deployments, then turns them into structured posture data for each service. Teams use guardrails as code to check that data against requirements for testing, reliability, operational readiness, and compliance. Lunar provides feedback on code changes and pull requests, with modes from reporting to blocking PRs or deployments. Central management lets platform teams roll out a standard across diverse pipelines without changing every repository. The same checks cover human-written and AI-generated code, while dashboards and an enforcement record show where teams meet standards and where gaps remain. More than 200 prebuilt guardrails provide a starting point; teams can add their own.

About

StackRails is a software architecture and AI coding governance platform for engineering organizations. It builds a live knowledge graph of repositories, services, APIs, events, and cloud infrastructure, then provides coding agents with architecture and policy context through the Model Context Protocol (MCP). It supports Claude Code, GitHub Copilot, Cursor, and OpenAI Codex, and checks generated code against organization-defined rules on developers’ machines and in pull-request workflows. Teams can use it to map cross-repository dependencies, assess change impact, maintain architecture documentation, manage engineering policies, and run AI-assisted architectural reviews. StackRails is available as a hosted EU service, in customer-managed cloud environments on AWS, Microsoft Azure, or Google Cloud, and as an on-premises deployment.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Platform engineering, DevOps, security, and engineering leadership teams in need of a tool to enforce consistent development standards across human and AI-generated code

Audience

Enterprise engineering leaders, software architects, platform engineering teams and security teams.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Contact Earthly to discuss your requirements and receive current pricing for Lunar.
Free Version Not Supported
Free Trial Not Supported

Pricing

$15,000/year
The annual minimum contract is $15,000. Pricing scales with team size, with no usage meter or overage charges. A free 14-day Architectural Risk Assessment is available; it is an assessment, not a free software version or product trial. Premium support and self-hosting are optional.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Earthly Lunar
Founded: 2020
United States
earthly.dev/

Company Information

StackRails
Founded: 2026
Ireland
stackrails.ai

Alternatives

Alternatives

No Alternatives
Enkrypt AI

Enkrypt AI

Anaconda

Categories

Categories

AI Governance Supported

Integrations

Claude Code Supported
Cursor Supported
GitHub Supported
GitLab Supported
OpenAI Codex Supported
.NET Supported
Argo CD Supported
C Supported
Claude Supported
CodeQL Supported
CodeRabbit Supported
Codecov Supported
Cortex Supported
Docker Supported
JavaScript Supported
Jira Supported
Kubernetes Supported
Linear Supported
PHP Supported
Ruby Supported

Integrations

Claude Code Supported
Cursor Supported
GitHub Supported
GitLab Supported
OpenAI Codex Supported
.NET Not Supported
Argo CD Not Supported
C Not Supported
Claude Not Supported
CodeQL Not Supported
CodeRabbit Not Supported
Codecov Not Supported
Cortex Not Supported
Docker Not Supported
JavaScript Not Supported
Jira Not Supported
Kubernetes Not Supported
Linear Not Supported
PHP Not Supported
Ruby Not Supported
Claim Earthly Lunar and update features and information
Claim Earthly Lunar and update features and information
Claim StackRails and update features and information
Claim StackRails and update features and information