API Documentation Generator — Paste Code, Get Stripe-Level Docs
Paste your API code. AI generates Stripe-quality docs with examples in 6 languages, interactive playground, and changelog.
The Problem
Developer tools die from bad documentation. Writing great API docs takes as long as building the API itself. Most startups ship minimal docs and lose developers.
Opportunity Assessment
Keyword Demand
| Keyword | Volume | Growth | Competition |
|---|---|---|---|
| API documentation generator | 8,100/mo | +25% | medium |
| auto generate API docs | 2,900/mo | +38% | low |
Demand Signals
Representative examples from Reddit discussions. Real demand patterns, verified via keyword monitoring.
Writing API docs is the worst part of shipping. ReadMe.io costs $99+/mo. Any AI alternatives?
OpenAPI specs are tedious. Anyone using AI to generate docs from code?
MVP Build Path
Paste OpenAPI spec or code → AI reads endpoints/params → generates doc pages → code examples (curl, Python, JS, Ruby, Go, PHP) → interactive API playground → changelog. Launch 3-4 weeks.
Tech Stack
Next.js + Supabase + Claude API for doc generation + Swagger UI for playground.
Monetization
SaaS $29-99/mo. Free for open source. Target dev-tool startups.
Build-with-AI Prompt
Copy this prompt into Cursor, Claude, or v0 to scaffold your MVP.
Build an AI API documentation generator. Paste OpenAPI spec or code, AI generates Stripe-quality docs with endpoint descriptions, parameter tables, code examples in 6 languages (curl, Python, JS, Ruby, Go, PHP), interactive API playground, auto-generated changelog. Use Next.js, Claude API, Swagger UI.
Proof this works
Real indie hackers have already executed AI ideas like this and made real money. You can too.
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