Documentation for fintech

Documentation that gets your fintech through audit, due diligence, and partner reviews.

Connect your repo. Generate a structured technical documentation tree from your source code in minutes — architecture, code references, and API documentation, exportable to PDF or Confluence. Not in six weeks. Now.

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Live activation Repo → docs in minutes · Free 7-day trial
100+ repos documented in 5 weeks
FinLocker compressed roughly six months of manual documentation work into five weeks to close enterprise due diligence on a deployment affecting 3M+ servicing customers.
When you need docs by Friday

The three reasons fintech CTOs find us

You're not browsing tools. You have a deadline, a partner review, or an auditor. Pick the one that's blocking you.

01 · TRIGGER

Lender or banking partner asked for API documentation

Your integration partner sent a checklist: endpoints, auth flow, error semantics, retry policy. They want the package by month-end. Generate it tonight, send it tomorrow.

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02 · TRIGGER

PCI / SOC 2 audit window starts in six weeks

The auditor wants architecture diagrams, data-flow maps, and a defensible inventory of every system that touches cardholder data. Your last doc refresh was in 2023.

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03 · TRIGGER

Banking integration partner asked for technical docs

You're three weeks from go-live. Their security team needs full technical docs to sign the partnership agreement. Yours don't exist yet.

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What gets generated

A structured documentation tree, generated from your source code.

Read in-app, or export to where your team and your reviewers already work.

Full documentation tree

Code-level documentation projected from your repository: modules, services, classes, functions. Searchable.

ModulesServices

API reference

OpenAPI / Swagger reference. Request and response shapes inferred from your code.

OpenAPISwagger

UML diagrams

Class and sequence diagrams in Mermaid or PlantUML, generated alongside the code documentation.

MermaidPlantUML

Export anywhere

Markdown, PDF, Word, Confluence, or Git. Read in-app, push to your repo or team's workspace, or share the PDF.

MarkdownPDFWordConfluenceGit

We had over 100 repositories with incomplete documentation. Manually documenting everything would have taken about six months. With DocuWriter.ai and a focused team effort, we were able to complete most of the documentation in just a few weeks.

— Princewill O., Head of Engineering & Data/AI, FinLocker
5 weeks
100+ repositories documented for enterprise due diligence tied to a deployment serving 3M+ servicing customers.
Read FinLocker case study →
How the integration works

Read-only repo access. Source code in, documentation out.

Connect via your Git platform's standard read-only auth. Your security team can review what's involved before you connect.

Used to generate, not to train

Source code is processed to generate documentation. Never used to train models. Disconnect a repo and its data goes with it.

No training

Read-only repo access

Connect via GitHub, GitLab (incl. self-hosted), Bitbucket, or Azure DevOps. Read-only is enough — we never need write permissions to generate docs.

GitHubGitLabBitbucketAzure DevOps

Security review

Current security posture, sub-processors, and review materials live at trust.docuwriter.ai. Send the link to your security team before connecting a repo.

trust.docuwriter.ai
Vertical-specific FAQ

Questions fintech buyers ask us first.

If you have a partner review on the calendar, these are the answers you came here for.

A structured documentation tree generated from your source code: architecture overview, code-level documentation, and an OpenAPI / Swagger reference where applicable. We don't certify your environment, audit your processes, or interpret regulations — we generate documentation from what's in your repository, which your team and your assessors can use as part of their own work.
FinLocker documented 100+ repositories in five weeks for an enterprise due-diligence deadline — work they had estimated at six months manually. Per-repo first runs typically complete in minutes; Autopilot keeps subsequent commits in sync.
Connect read-only via GitHub, GitLab (incl. self-hosted), Bitbucket, or Azure DevOps. Source code is processed to generate documentation, never used to train models. Send your security team to trust.docuwriter.ai for the current security posture.
Markdown, PDF, Word, Confluence, or Git. Same generation, multiple destinations. Each space is also exposed as an MCP server so your AI agents (Cursor, Claude, ChatGPT) can read the docs natively.
Autopilot watches your connected repository for code changes and generates reviewable suggestions to keep docs in sync. You stay in full control: review, approve, or discard each suggestion.
GitHub, GitLab (including self-hosted), Bitbucket, and Azure DevOps. Read-only access — we don't need write permissions to generate docs.
Free 7-day trial · no card

Connect your repo. Generate the documentation tree.

GitHub, GitLab, Bitbucket, or Azure DevOps. Read-only access. Free 7-day trial.

Start free trial Talk to our team
Pricing → Pro $49 · Enterprise $129 · Unlimited $299 / month