Developer Tooling
API to Micro-SaaS Launcher
Turn any Python or Node API into a paid micro-SaaS with keys, metering, and Stripe billing.
⚡ Instant delivery after payment · 🔒 Razorpay UPI, cards & netbanking
Your API already does the hard part. This kit adds the commercial layer: API keys, usage metering, Stripe billing, a developer portal, and a working dashboard. Point the generator at an OpenAPI spec and it synthesizes the SaaS scaffolding, so you can charge for the endpoint instead of leaving it on localhost.
An OpenAPI-to-SaaS generator that adds API keys, usage metering, Stripe metered billing, and a customer dashboard to an existing Python or Node API.
Developers with a working API, script, or model who want to launch a paid micro-SaaS without building billing and auth from scratch.
Parses an OpenAPI spec, generates API-key middleware and metered billing code, and scaffolds a Next.js dashboard for usage and invoices.
Turns a documented API into a billable micro-SaaS in about 15 minutes instead of the usual 3 to 4 weeks.
Why this architecture wins
Swipe to compare ↔| Without this skill (Manual & Flawed) | With this skill (Deterministic & Gated) |
|---|---|
| Without this skill ✕ A powerful API that only runs on localhost because auth, keys, and billing are missing. | With this skill ✓ A public API with hashed keys, usage tracking, and Stripe metered billing. |
| Without this skill ✕ Three weeks of frontend work before the first customer can pay. | With this skill ✓ A generated dashboard and checkout path that ship in the same session. |
| Without this skill ✕ Usage data scattered across logs, so invoices are manual and disputed. | With this skill ✓ Per-key usage records that reconcile directly with Stripe invoices. |
What's inside
- ✓scripts/schema-to-saas.mjs (OpenAPI-to-SaaS generator)
- ✓skills/microsaas-launcher/SKILL.md (multi-client agent skill)
- ✓Next.js API-key middleware and metered billing code
- ✓Customer dashboard and usage tracking components
- ✓Working weather-API example with OpenAPI spec
See what ships
Read-only previews of files inside the download. The same commands appear in the step-by-step guide below.
cat ./microsaas/examples/weather-ai-api/openapi-spec.jsoncat examples/weather-ai-api/generated-metered-billing.tsBuilt with
- Node.js 18+
- Next.js
- Stripe
- OpenAPI
- TypeScript
- PostgreSQL
How to use this skill (Step-by-step)
Run offline in your local workspace, orchestrate through any agent (Claude Code, Cursor, Antigravity, Cline), or plug directly into CI/CD pipelines.
Extract the Launcher
Unzip the generator and examples into a working directory.
unzip api-to-microsaas-launcher-1.0.0.zip -d ./microsaasReview the Example Spec
Open the included OpenAPI contract to see the expected input shape.
cat ./microsaas/examples/weather-ai-api/openapi-spec.jsonGenerate the SaaS Layer
Synthesize API-key middleware, usage tracking, and billing scaffolding.
node ./microsaas/scripts/schema-to-saas.mjs examples/weather-ai-api/openapi-spec.jsonInspect the Billing Code
Review the generated Stripe metered billing implementation.
cat examples/weather-ai-api/generated-metered-billing.ts30-Day 100% Risk-Free Guarantee
Run API to Micro-SaaS Launcher on your or your client's website. If the deliverables don't save you at least 15 hours of manual work or help you win an AI audit retainer, email me at ceo@saasnext.in with your order reference for a prompt 100% refund. No questions asked.
Included with every purchase
- Complete generator with zero dependencies
- Commercial license for personal and client deployments
- Next.js dashboard and API-key middleware
- Step-by-step tutorial with Stripe metering recipes
- 12 months of free minor updates
Before you buy
Will it work with my stack?
It ships as ZIP · CLI + skill + docs and is built with Node.js 18+, Next.js, Stripe, OpenAPI, TypeScript, PostgreSQL. You run it in your own workspace — there is no hosted account or platform lock-in on my side.
Is this a subscription?
No. It is a one-time payment. Lifetime free updates and a commercial license are included.
How fast do I get the files?
Immediately after payment. Razorpay confirms the order and the download link appears on the confirmation screen and in your receipt email.
What if it does not fit my workflow?
Email the order number within 30 days for a refund — no form to fill in.
Questions
Do I need an existing API?
Yes. The kit is designed for a working Python or Node API with an OpenAPI spec or documented endpoints.
Does it handle payments?
It generates Stripe metered billing code and checkout scaffolding. You connect your own Stripe account and keys.
Can I use it for client work?
Yes. The commercial license covers client deployments. Reselling the generator itself is prohibited.
Which database does it use?
The examples use PostgreSQL. The generated code is portable to MySQL or SQLite with small adapter changes.