Lago

Open-source metering and billing, cloud or self-hosted

Overview

Lago is a metering and usage-based billing platform distinguished by its open-source edition, licensed under AGPLv3, which companies can run in their own cloud account or on premises free of charge[15]. A hosted version, Lago Cloud, is offered in US and EU regions[15]. Lago names CoreWeave, Mistral AI and PayPal among its customers[21].

The product meters events such as AI input, output and cached tokens separately, applies spend alerts and prepaid credits, and generates invoices; its documented API lets developers define plans and charges in code[15][21].

Lago Cloud has three plans. Launch has no minimum commitment and includes a one-time allowance of the first US$100,000 of processed billings and first five million production events free, then charges 0.7% of billings and US$20 per million events. Scale has a US$12,000 annual minimum and billing rates from 0.6%. Enterprise, which can be deployed in the cloud, a virtual private cloud or on premises, is custom[15]. The self-hosted edition requires the customer’s own engineering team to operate it.

Lago features

  • AGPLv3 open-source self-hosted edition
  • Lago Cloud in US or EU regions
  • Separate metering of token types
  • Spend alerts and prepaid credits
  • Documented billing API and CLI

Lago pricing

Open source: free, self-operated. Launch: no minimum; first US$100,000 of billings and 5 million events free (one-time), then 0.7% of billings and US$20 per million events. Scale: US$12,000 annual minimum; from 0.6% of billings. Enterprise: custom.

Lago strengths and limitations

Strengths

  • Only open-source option in this list
  • Data can stay in the customer's own infrastructure
  • Generous one-time free allowance on cloud

Limitations

  • Self-hosting requires in-house operations effort
  • Scale plan carries a US$12,000 annual minimum
  • AGPL licence terms need legal review for some companies

Appears in

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