Documentation

Everything you need to build with QuotaStack — from core concepts to working examples.

Quickstart

Zero to a working credit-based billing flow in seven API calls — customer, metric, grant, entitlement check, usage.

How credits, entitlements, metering, reservations and more work under the hood.

Real-world integration patterns: SaaS subscriptions, AI chat apps, generation pipelines, API platforms.

Short, task-oriented recipes for common patterns — plan purchase as usage, pack stacking, free credits, auto-buy.

How QuotaStack stacks up against Stripe Billing, Lago, Metronome, and Orb.

Interactive reference with try-it-out for every QuotaStack v1 endpoint.