Documentation/Core Concepts/Prepaid vs. Postpaid Billing

Prepaid vs. Postpaid Billing

VibezCheck supports both billing paradigms with a single configuration toggle:

Which Model Should You Choose?

Model	Best For	How It Works	Financial Risk
Postpaid	B2B SaaS, enterprise contracts, internal tools	Monthly metered invoice sent at cycle end.	Possible card decline at month end.
Prepaid	B2C apps, public signups, self-serve tools	Users buy a $10 credit pack upfront; deducts in real time; locks at $0.	Zero risk. You get cash before they use 1 token.

Setting Up Prepaid Credit Wallets

typescript

model: vibezcheck('openai/gpt--mini', {
  customer: 'alex@gmail.com',
  billing: {
    mode: 'prepaid', // 👈 Real-time deduction; locks cleanly at $0
  },
  // Gracefully switch to eco-mode when balance is low:
  fallbackModelOnBudget: 'openai/gpt-4o-mini',
})

Setting Up Postpaid Invoices

typescript

model: vibezcheck('openai/gpt-', {
  customer: 'org_acme_corp',
  billing: {
    mode: 'postpaid', // 👈 Standard Stripe Metered Billing invoice
  },
})

Core Concepts

Profit Margins & Sane Defaults

Next Guide

Core Concepts

Agentic Tool Call Metering

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