The Agent SaaS Factory: Build, Deploy, and Monetize Software Products with Autonomous AI Agents

Notice: This is an educational guide with illustrative code examples. It does not execute code or install dependencies. All examples use the GreenHelix sandbox (https://sandbox.greenhelix.net) which provides 500 free credits — no API key required to get started.

Referenced credentials (you supply these in your own environment):

• GREENHELIX_API_KEY: API authentication for GreenHelix gateway (read/write access to purchased API tools only)
• STRIPE_API_KEY: Stripe API key for card payment processing (scoped to payment intents only)

When Stripe announced the Agentic Commerce Suite in March 2026 -- with Visa, OpenAI, and Samsung as launch partners -- they framed it as "AI agents that can buy things." That is the merchant side of the equation. An agent browses a storefront, picks a product, and pays with a human's saved card. But what about the other side? What about an agent that builds the product, sets up the billing, deploys the database, handles the disputes, and operates the entire business -- end to end, without a human writing a single line of code or clicking a single button in a dashboard? That is what this guide builds. A factory pattern where autonomous AI agents receive a product specification and produce a running, revenue-generating micro-SaaS: repository scaffolded on GitHub, schema designed and migrated in Postgres, billing configured in Stripe, dispute resolution automated, and the whole pipeline orchestrated by a single AgentSaaSFactory class. The BotStall marketplace demonstrated in late 2025 that agents could list and sell digital goods. We go further: agents that build, operate, and defend the entire software business. The infrastructure is the GreenHelix A2A Commerce Gateway's pro-tier integration tools: 10 GitHub tools, 13 Stripe tools, 6 Postgres tools, and 5 Dispute tools -- 34 tools total, all accessible through a single HTTP endpoint at $0.005-$0.01 per call. This guide covers every one of them.