What Lago does
Lago is an open-source billing platform for usage-based, subscription and hybrid pricing, aimed at AI, SaaS, fintech, IoT and infrastructure companies. It meters usage in real time across API calls, tokens, compute, storage, seats and custom dimensions, and supports prepaid credits, entitlements tied to plans, automated invoices with taxes, credit notes, multi-currency billing, payment collection, revenue analytics and webhooks. Lago is not a payment processor and works with the processor a company already uses. The code is licensed under AGPLv3 and can be self-hosted; Lago Cloud, VPC and on-premise deployments are offered, and Lago Premium, which adds RBAC, SSO, AI billing assistants and an MCP server, is priced on request.
How Lago compares with its closest alternatives
4 of the 5 closest alternatives have a free plan, as Lago does. 3 of the 5 offer an API, as Lago does. Lago offers a web app. Of the alternatives, 3 offer a web app. Lago was founded in 2022; the alternatives were founded between 2017 and 2024, 3 of them earlier. Lago is based in Paris, France. Of its alternatives, only Orb has a headquarters on record, in the United States.