Lago
PaymentsUsage-based billing that turns metered usage into invoices.
Lago handles the part of a software business that sits between usage and revenue. It records what customers use, applies the pricing, and produces invoices and payment requests, so a product team does not have to build and maintain its own billing engine.
- Meter tokens, compute, API calls or any product usage as billable events.
- Turn usage into pricing, credits, entitlements, invoices and payments.
- Integrate through the REST API, SDKs, a CLI or an MCP server for coding agents.
What people use it for
Bill an AI product by usage
Send an event for each request with its input and output tokens, and let Lago apply the price per token and add the charges to the customer's invoice.
Sell prepaid credits
Give customers credits that usage draws down, and use entitlements to control what each plan can access.
Offer billing inside your own platform
Use Lago Embedded to provide metering and invoicing to your own customers, rather than building a billing engine yourself.