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Lago

Open-source usage-based billing platform.

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What we love

  • Open-source self-host option
  • Strong usage-metering primitives
  • Modern API + webhooks

What to watch

  • Self-hosting complexity at scale
  • Smaller ecosystem than Stripe Billing

Best for

AI / API companies wanting OSS usage-based billing they can host.

Key features

  • Open-source core
  • Usage metering
  • Pay-as-you-go + subscription models
  • Coupons + add-ons
  • Stripe + Adyen integrations

What is Lago?

Lago is the open-source Stripe Billing — usage metering, plans, coupons, invoicing — all self-hostable. Built for AI / API products with complex pricing.

Who is it for?

Lago is a great fit for teams looking for a backend & infrastructure tool that fits the freemium tier. It's especially loved by engineering teams building serious production systems.

Key tags

BillingUsage-based PricingOpen Source

How it compares

We curate Lago among the top Backend & Infrastructure tools on saas.fyi. Browse all Backend & Infrastructure tools to compare alternatives, or use the directory's search and filters to find a closer fit.

Pricing

Free OSS, Cloud usage-based. Pricing tier: Freemium. Always confirm current pricing on the official site — SaaS pricing changes frequently.

Quick facts

  • Category: Backend & Infrastructure
  • Pricing: Freemium — Free OSS, Cloud usage-based
  • Website: getlago.com
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