You opened Claude Code at 2pm. By 4pm you had a working app. A budget tracker, a recipe finder, a habit journal — whatever scratched your itch. You deployed it. You shared the link. People are using it.
And it makes exactly zero dollars.
This is the new normal. AI coding tools have made it trivially easy to build and ship software. The hard part isn't building anymore — it's monetizing. And the existing options are brutal for small apps.
The old way is broken
Let's walk through what "adding ads" used to mean:
Google AdSense: You fill out an application. You wait days or weeks. Google reviews your site. If you have fewer than ~3,000 monthly visitors, you're probably rejected. If you're approved, you integrate their script, configure ad units in a dashboard, and tweak placements to not tank your UX. Elapsed time: days to weeks. Success rate for indie apps: low.
Carbon Ads: Beautiful, developer-friendly ads. Also invite-only. You apply. You wait. If your site isn't in their niche or doesn't have enough traffic, you never hear back. Elapsed time: weeks to never.
EthicalAds: Good product, but requires 50K+ monthly pageviews to join. That's not a starting point — that's a destination.
Every option assumes you're already successful before you can start earning. Classic chicken-and-egg.
The Fill way: 60 seconds, no gatekeepers
Here's the entire process.
Step 1: Add Fill to your AI coding tool. One line in your MCP config:
{
"mcpServers": {
"fill": {
"command": "npx",
"args": ["@fill-md/mcp"]
}
}
}Step 2: Tell your agent what to do.
You: "Monetize this app with ads using Fill."Your agent calls Fill's MCP tools. It registers your app, gets an API key, installs the SDK, and places an ad unit in a sensible location — all without you touching a dashboard, reading docs, or configuring anything.
Step 3: Deploy. Your app is now showing cross-promotions from other builders' apps, and earning credits for every impression.
That's it. No signup form. No approval queue. No minimum traffic. The agent did everything.
What happens next
Every time a visitor sees an ad in your app, you earn 1 credit. Every click earns 5 credits. Credits accumulate in your account automatically.
You can spend those credits to promote your own app across the network — every other app running Fill becomes a distribution channel for yours. Or, when cash-out is available, convert earned credits to dollars at a rate of 1,000 credits = $1.
The math works even at small scale. An app with 1,000 monthly visitors earning ~$0.50/month in credits isn't going to pay your rent. But it IS earning from day one, and those credits can drive new users to your app — users you'd otherwise never reach.
Your app is now earning from its first visitor
The gap between "I built something" and "it makes money" used to be weeks of integration work and gatekeeping. Now it's a single sentence to your AI agent. Sixty seconds. No approval. No minimums.
Your app already works. Now it works for you.