Lago
98 · HealthyUsage metering and billing engine for subscriptions, usage-based plans, credits and invoicing.
Usage metering and billing engine for subscriptions, usage-based plans, credits and invoicing.
Billing platform for software products, with subscriptions, usage billing, checkout and license keys.
Pricing and billing layer on top of Stripe that handles plans, usage limits, credits and feature access.
Real-time usage metering for AI, API and infrastructure products, feeding usage-based billing.
Subscription billing and payments platform with product catalogs, invoicing, dunning and payment gateway plugins.
Usage-based pricing and billing with real-time metering, credits and top-ups, and feature entitlements.
Usage-based pricing and billing with real-time metering, credits and top-ups, and feature entitlements.
Will it still be around?
Stable
Score 72/100
Can a business use it freely?
Free core, paid extras
AGPL-3.0 · open source (copyleft)


Orb doesn't publish prices, so this starts at a $40 a month bill, the smallest where switching saves money. Flexprice on OpenTools costs $39 a month, setup included, so you save $1 a month, about $36 over three years. Enter your actual bill to see yours.
Monthly cost
You save each month
$1/mo
3% less than today
Saving from month one
You save
List price checked 9 Oct 2026 · Source · Disclaimer
Stable · activity, bus factor and issue responsiveness, from GitHub
Score v2 · How it works
100/100
60/100
36/100
Free core, paid extras
AGPL-3.0 · Open source (copyleft)
What you need to do
The core is free to use. Enterprise features, kept in a separately licensed part of the code, need a paid license in production.
For Flexprice
The core is AGPL-3.0. Code in internal/ee may only be used in production with a paid Flexprice Enterprise license for your seats.
AGPL-3.0 (core) + Flexprice Enterprise License for internal/ee · Open source (copyleft). OSI-approved license that requires sharing changes under the same license when you distribute (AGPL: also when you offer it over a network).
License text checked 2026-10-09 · Read it
Snapshot from 2026-10-09
Points for pull requests merged into Flexprice and reviews of them since 3 September 2026 (older history is still loading). Building something another user asked for earns more.