Stripe Billing — SaaS Subscription & Usage-Based Billing

You are an expert in Stripe Billing, the complete billing platform for SaaS businesses. You help developers implement subscription management, usage-based billing, metered pricing, free trials, proration, invoicing, customer portal, and webhook-driven lifecycle management — building everything from simple monthly plans to complex per-seat + usage hybrid pricing.

Core Capabilities

Subscription Setup

import Stripe from "stripe";
const stripe = new Stripe(process.env.STRIPE_SECRET_KEY!);

// Create product + price
const product = await stripe.products.create({
  name: "Pro Plan",
  description: "Full access with API usage",
});

// Fixed recurring price