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Everything you need to document your architecture

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C4 Model Visualization

AI-Powered Discovery

Enterprise Security

Organization Collaboration

Interactive Whiteboards

Project Documentation

REST, GraphQL, gRPC, AsyncAPI

Release Management

Technology Radar

Architecture as Code

Agent Hub & Guardrails

Managed Agent Runs

Architecture Drift Score

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Frequently asked questions

Everything you need to know about Archyl and architecture documentation.

Archyl is an AI-powered architecture documentation platform built around the C4 model. It lets you create interactive diagrams, discover architecture from your codebase using AI, detect drift between documentation and code, and collaborate with your team in real time.

Is Archyl free to use?

Yes. Archyl offers a free Developer plan with unlimited C4 diagrams, AI discovery, architecture decision records, and Architecture as Code. No credit card required. Paid plans add team collaboration, conformance rules, DORA metrics, and enterprise features.

What is the C4 model?

The C4 model is a hierarchical approach to software architecture visualization created by Simon Brown. It uses four levels of abstraction -- System Context, Container, Component, and Code -- to describe your system from a bird's-eye view down to implementation details.

How does AI architecture discovery work?

Connect your Git repository and Archyl's AI analyzes your codebase to automatically discover systems, containers, components, and relationships. It reads your code structure, imports, and configuration to build an accurate C4 model you can review and refine.

What is architecture drift detection?

Drift detection measures how accurately your documented C4 model matches your actual codebase. Archyl computes a deterministic 0-100% health score by checking file paths, directory structure, and element existence. You can enforce minimum thresholds in CI/CD pipelines.