Related Products
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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.
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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.
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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
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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
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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
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Audience
Enterprise engineering leaders, software architects, platform engineering teams and security teams.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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PricingContact Earthly to discuss your requirements and receive current pricing for Lunar.
Free Version
Not Supported
Free Trial
Not Supported
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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
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationEarthly Lunar
Founded: 2020
United States
earthly.dev/
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Company InformationStackRails
Founded: 2026
Ireland
stackrails.ai
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Alternatives |
AlternativesNo Alternatives
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Categories |
Categories |
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Integrations
Claude Code
Supported
Cursor
Supported
GitHub
Supported
GitLab
Supported
OpenAI Codex
Supported
.NET
Supported
Argo CD
Supported
C
Supported
Claude
Supported
CodeQL
Supported
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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
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