How to Launch a Niche Micro-SaaS with OpenRouter and Zero Hosting Cost

aixlabsaixlabs
1 min read

Micro-SaaS is booming in 2025. I launched a working tool using OpenRouter + Cloudflare Workers with no server cost. Here’s how you can too.

The Problem

Developers want tools that do 1 thing well: summarize docs, generate pitch decks, rewrite product descriptions, etc.

The Solution

Use OpenRouter + Cloudflare Workers to create fast, scalable APIs with zero ops overhead.

Stack Used

  • Compute: Cloudflare Workers (free tier)

  • AI: OpenRouter API

  • Frontend: Static site on Vercel

  • Payments: LemonSqueezy

Features

  • Input box → instant AI output

  • No DB, no backend server

  • Monetized API key usage

Setup Steps

  • Create Cloudflare Worker with fetch + POST

  • Connect OpenRouter API

  • Serve static page w/ JS fetch call

  • Track usage with counter

Monetization Strategy

  • Offer free tier (10 uses/day)

  • Upgrade removes usage limits

  • Email list with ConvertKit or Buttondown

👉 https://gum.co/u/rgikbz7g

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Written by

aixlabs
aixlabs

Helping e-commerce startups & tech enthusiasts grow with no-code automation, Shopify setups, and AI tools. I share my journey side hustles, productivity hacks, and tech tips Let’s connect over mint tea and big ideas!