Architecture overviews
How services, data, and dependencies fit together.
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Payments Platform
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Overview
System architecture
Data flow
Glossary
Services
Payments API
Ledger worker
Auth service
Notifications
API reference
POST /payment-intents
GET /payments/{id}
POST /refunds
Webhooks
Modules
Retry policy
Idempotency
Ledger journal
Diagrams
Checkout sequence
Refund flow
Service dependencies
Guides
Local setup
Deployment
Incident runbook
Overview / System architecture
System architecture
Generated from 4 repositories Updated 2m ago by Autopilot
Web app
API gateway
Payments API
Ledger worker
Postgres
Requests enter through the API gateway. Payments API authorizes charges and emits events that the Ledger worker records in Postgres.
Connects to 
GitHub 
GitLab 
Bitbucket 
Azure DevOps
GitHub GitLab Bitbucket Azure DevOps AI code documentation for the whole system.
Generated from your source code and organized in one documentation tree.
OpenAPISwagger
API reference
Endpoints, parameters, and specs.
UML and sequence diagrams
Drawn from the code they explain.
Modules, classes, and functions
Every part of the codebase, in any language.
92/100
- Codebase coverage90
- Technical accuracy92
- Developer usability91
Quality, measured
web-apppayments-apiledger-workerHow does a refund reach the ledger?
Payments API emits the refund event, and the Ledger worker records it.
payments-apiledger-worker
Multiple repositories, one Space
Document dependencies and services across your whole system.
Developer onboarding
Understand an unfamiliar codebase, from overview to implementation.
Documentation that maintains itself.
A repository event you configure starts a run. Autopilot proposes updates to the affected pages, and your team reviews them in Spaces, not in a pull request.
See how automated documentation works → PR #482 merged into main auth-service.ts
−refresh(token)
+refresh(token, { rotate: true })
+Returns a new refresh token
+Old token stops working
Auth guide · Refresh tokens 94% confidence
Call refresh(token) to get a new access token.
Call refresh(token, { rotate: true }). Each call returns a new refresh token, and the old one stops working.
3 auto-applied 5 to review
Review mode is the defaultExample queue of 8 suggestions
Your team's documentation, in one place.
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Claude Code
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Any MCP client100+ repositories. Documented in 5 weeks.
“We had over 100 repositories with incomplete documentation. Manually documenting everything would have taken about six months.”
- Platform repositories
- 100+
- Documentation timeline
- 5 weeks
- Manual estimate
- ~6 months
Choose the documentation workflow your team needs.
| Your requirement | DocuWriter | What to verify in alternatives |
|---|---|---|
| Document an existing codebase | Generate complete, structured documentation from connected repositories. | Can it create the first documentation set from source? Check the scope and outputs. |
| Keep documentation current | Autopilot proposes focused updates to affected pages in Spaces. | Which changes trigger an update, where do you review it, and when is it applied? |
| Manage and share the results | Organize, search, collaborate, and publish documentation from Spaces. | Check hosting, access controls, exports, and how AI assistants retrieve the documentation. |
| Cover the whole system | Document architecture, modules, services, dependencies, APIs, and diagrams across repositories. | Inspect examples from a similar codebase, including relationships between services. |
| Connect your repositories | GitHub, GitLab, Bitbucket, and Azure DevOps. | Verify supported providers, private repositories, branches, and path filters. |
| Budget for the workflow | Compare plan features and AI allowances on our pricing page. | Include editor seats, AI credits, private-repository access, and expected usage. |
| DocuWriter starts at | $49 / mo | See plans and included allowances → |
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Keep every codebase documented.
View full pricing details →Professional
Document your entire codebase.
$49 / month
- 200 AI pages / month
- 5 Knowledge Spaces
- Full codebase and API docs
- Search and chat with your codebase
Enterprise
Keep your team's docs up to date.
$129 / month
- 500 AI pages / month
- Unlimited Knowledge Spaces
- Everything in Professional
- Autopilot automatic updates
Unlimited
Scale with dedicated support.
$499 / month
- Unlimited AI pages
- Dedicated success manager
- Personalized onboarding
- Everything in Enterprise
Yearly billing includes 4 free months.
Frequently asked questions.
Talk to our teamWhat is DocuWriter.ai?
DocuWriter is an AI-powered platform for creating, updating and managing complete, structured documentation for entire codebases. Teams can connect repositories and generate documentation covering architecture, modules, services, classes, functions, dependencies, APIs, diagrams, READMEs, and other technical components. It supports both individual repositories and larger multi-repository systems.
How does the AI code documentation generator work?
Connect your repository on GitHub, GitLab, Bitbucket, or Azure DevOps. DocuWriter reads your codebase, generates a full documentation tree, and the Autopilot AI Agent keeps it in sync as your code evolves.
What programming languages does this documentation tool support?
DocuWriter supports all known programming languages.
Can DocuWriter generate API documentation and UML diagrams?
Yes. API references, Swagger/OpenAPI specifications, and UML diagrams are generated as connected parts of the complete codebase documentation, so they remain organized with the architecture and implementation they explain.
Does DocuWriter generate architecture and module documentation?
Yes. DocuWriter generates architecture overviews, module documentation, API references, and UML diagrams from your repository.
Does DocuWriter support multiple repositories?
Yes. DocuWriter supports both individual repositories and larger multi-repository systems. Connect repositories to a Space to keep their architecture, service, API, and module documentation together.
Do I need a separate documentation host?
No. Documentation lives in Spaces inside DocuWriter. Teams can organize, search and edit the pages there, collaborate privately, or publish a Space for public readers. A separate documentation host is optional.
Does Autopilot open pull requests?
No. Autopilot proposes focused updates to the affected documentation pages and places them in your Space for review. Your team applies or discards each suggestion, and eligible plans can auto-apply suggestions above a confidence threshold.
Can AI coding assistants search DocuWriter documentation?
Yes. Connect a compatible client such as ChatGPT, Codex, Claude Code, Cursor or VS Code through DocuWriter's remote MCP connection, authorize your account, and choose a Space. Access follows your DocuWriter permissions.
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