Diagram Guru

Since AI can write code, it can also maintain structured architecture diagrams for your team. DiagramGuru is the MCP tool that lets AI agents create, update, and evolve your C4 architecture — automatically.

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For Engineering Teams

Architecture Diagrams Built and Maintained by AI

Since AI can write code, it can also maintain structured architecture diagrams for your team. DiagramGuru is the MCP tool that lets AI agents create, update, and evolve your C4 architecture — automatically.

claude · diagram-guru mcp

$ Create a C4 architecture for our e-commerce platform with order processing, payments, and notifications

✓Created project: E-Commerce Platform

✓Added 6 entities to System Context

✓Added 5 relationships

✓Created Container drill-down (7 containers)

✓Created flow: Place Order (8 steps)

▶Creating flow: Browse Catalog...

Get StartedSee How It WorksPricing

Architecture diagrams go stale the moment you stop drawing them.

Architects spend hours redrawing diagrams after every sprint. Teams reference outdated Confluence pages. New engineers make wrong assumptions. DiagramGuru eliminates this cycle — AI creates and maintains your diagrams so you don't have to.

Everything Your Team Needs

Built around the real-world challenges of maintaining living architecture documentation.

Codebase-Aware Updates

AI agents analyze your codebase and pull requests to detect architectural shifts — new services, changed dependencies, evolved integrations — and update your C4 diagrams to match what's actually deployed.

Team-Wide Visibility

Every architect, developer, and stakeholder sees the same living architecture. Changes are tracked, versioned, and visible to everyone.

MCP-Powered Updates

DiagramGuru speaks the Model Context Protocol. Any MCP-compatible AI agent can read, update, and maintain your architecture diagrams.

Multi-Level Drill-Down

Navigate from System Context to Containers to Components. Each level reveals more detail while keeping the big picture accessible.

Enterprise Access Control

Role-based access at the org, team, and project level. Control who can view, edit, or administer your architecture documentation.

Interactive Flows

Overlay your C4 diagrams with numbered, color-coded sequences that trace how data moves through your system — from user request to database write — for every use case.

Flows

See How Your System Actually Works

Flows overlay your C4 diagrams with numbered, color-coded sequences that show exactly how data moves through your system for each use case — from placing an order to browsing a catalog.

Place Order flow — numbered steps showing data flow across system components

How It Works

From a prompt to a living architecture diagram in minutes.

01

Describe your architecture

Tell your AI agent about your system — services, databases, queues, external integrations. Natural language is all it takes.

02

AI creates the diagram

The agent creates entities, relationships, and flows through MCP — producing structured C4 diagrams in seconds.

03

Drill down to any level

Navigate from System Context to Containers to Components. Each level reveals the detail your team needs.

04

AI keeps it current

As your codebase evolves, AI agents update diagrams automatically — no more stale Confluence pages.

Container-level drill-down showing internal services, databases, and message queues

Transparent pricing

Start designing free, upgrade when you grow or scale design.

MonthlyYearlySave ~17%

Free

Start modelling free. Perfect for small teams and solo developers.

$0/ forever

Limits

  • Editors1
  • Viewers3
  • Projects2
  • Teams1

Features

  • C4 Diagrams
  • MCP Integration
  • Flows
  • AI-ready

Popular

Growth

Designed for teams that need to collaborate on complex, large-scale designs.

$39/ month

Limits

  • Editors5
  • Viewers25
  • Projects25
  • Teams5

Features

  • Everything in Free, plus:
  • Share Links
  • Audit Log
  • Email Support

Scale

Built for organizations to manage and scale design collaboration across multiple teams.

$149/ month

Limits

  • Editors20
  • Viewers100
  • Projects100
  • Teams20

Features

  • Everything in Growth, plus:
  • Domain Restriction
  • Priority Support

Enterprise

Custom solutions for large organizations with robust security and controls.

Custom

Limits

  • EditorsCustom
  • ViewersCustom
  • ProjectsCustom
  • TeamsCustom

Features

  • Everything in Scale, plus:
  • Custom Roles / Permissions
  • Dedicated Support

Contact Sales

Built on the Model Context Protocol

DiagramGuru exposes your architecture as an MCP resource. Any compatible AI — from your code editor copilot to CI/CD agents — can create C4 models, add flows, drill into containers, and keep diagrams current as your system evolves.

MCP CompatibleC4 ModelMulti-LevelFlowsTeam Visibility

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