Cost & FinOps

Lago

Open-source usage-based metering and billing engine used for AI token and credit pricing.

Website ↗ GitHub ↗
CategoryCost & FinOps
Open sourceYes
Self-hostableYes
Pricing modelfreemium
Pricing notesOpen-source core free and self-hostable; paid cloud version
Framework integrations
Funding / ownershipYC S21; $22M Series A (2023)

Pricing/feature source: https://www.solvimon.com/blog/token-billing-for-ai-7-platforms-compared-2026