Lago

Name: Lago
Brand: Lago
Rating: 4.7 (3 reviews)

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Open-source billing infrastructure for usage-based monetization at scale.

Finance Invoicing Subscription Billing

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Reviews onG2Capterra

3 reviews tracked

The Bottom Line

Entry price

Paid plans only

Biggest pro

Handles extremely high event volumes for real-time accuracy

Biggest con

Requires technical expertise for self-hosting and integration

TL;DR - Lago

Open-source billing infrastructure for usage-based monetization.
Processes up to 1 million events per second for real-time billing.
Supports complex pricing models, hybrid plans, and enterprise-grade scalability.

Pricing: Paid only

Best for: Enterprises & pros

What is Lago?

Editorial review

Lago provides an open-source billing infrastructure designed for modern companies, particularly those with usage-based pricing models like AI, IoT, and enterprise SaaS. It enables businesses to ingest and process high volumes of usage data, up to 1 million events per second, and convert it into accurate invoices in real-time. The platform supports various complex billing models including consumption-based billing, prepaid credits, usage allowances, and hybrid plans combining usage with subscriptions. Lago empowers engineering, product, finance, and operations teams by offering a unified source of billing data. It allows for flexible pricing adjustments via API or a no-code UI, and provides tools for managing margins, setting alerts, and ensuring data sovereignty through self-hosting options. This makes it ideal for companies requiring robust, scalable, and customizable billing solutions that can adapt to rapidly evolving product offerings and customer demands.

Available on: Web

LCLouis CorneloupUpdated May 26, 2026 · how we evaluateSourcegetlago.com ↗

Pros & Cons

Pros

Handles extremely high event volumes for real-time accuracy
Offers flexibility for complex and hybrid pricing models
Provides an open-source solution for greater control and transparency
Empowers multiple teams with unified billing data
Guaranteed SLAs for enterprise customers

Cons

Requires technical expertise for self-hosting and integration
Focus on usage-based billing might be overkill for simpler business models

Ratings Across the Web

4.7(3 reviews)

Lago holds an aggregate rating of 4.7 out of 5 from 3 reviews across G2 and Capterra, last checked March 19, 2026.

Ratings aggregated from independent review platforms. Learn more

Preview

Key Features

Usage metering and real-time event ingestion (up to 1M events/sec)Support for consumption-based billing, prepaid credits, and usage allowancesNo-code UI and API for updating usage chargesHybrid plan creation combining usage-based and subscription modelsCustomizable pricing, usage budgets, and terms with overridesAlerting and visibility for usage data, with threshold billingWallets and credits management for top-ups, trials, and grace periodsDeployment on own infrastructure for data sovereignty and scalability

Pricing Plans

Pricing checked Aug 26, 2026

Business

Lago core platform
Data pipeline integration
Lifetime usage calculation
Invoice preview endpoint
Business hours support
Customer support portal
Slack channel with Lago

Enterprise

Everything in Business
24/7 premium support
Assigned solutions engineer
Solutions engineer check-ins during implementation
Self-hosted deployment option

Calculate your cost View full pricing

Is Lago worth the price?

40/100

Lago's pricing is entirely opaque, which makes it impossible to assess fairness or value.

Both 'Business' and 'Enterprise' tiers are 'Contact us', suggesting a high-touch sales process and likely significant costs. This model is best suited for larger enterprises with complex billing needs and budget flexibility.

Hidden Costs & Gotchas

Implementation costs are likely high.

Potential minimum spend requirements.

Self-hosting adds infrastructure costs.

No transparent pricing for core platform.

Integration costs for data pipelines.

How Lago Compares to Competitors

Compared to Chargebee, which offers transparent pricing starting around $249/month for basic plans, Lago's 'Contact us' approach suggests a much higher entry point. Similarly, Paddle provides clearer tiered pricing, making Lago's lack of public pricing a significant differentiator for larger, custom deals rather than SMBs.

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MaxioFreemium

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Still deciding?

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Lago FAQ

What types of usage metrics can Lago track and bill for?

Lago can track and bill for a wide range of usage metrics, including credits, tokens, compute hours, API calls, outcomes, and any other custom events defined by the user. It supports charging directly, including allowances, or using metrics for credit consumption.

How does Lago handle high volumes of usage data?

Lago is engineered to handle high volumes of usage data, capable of ingesting up to 1 million events per second. This ensures that billing remains accurate and responsive even during usage spikes, making it suitable for high-volume enterprises.

Can Lago integrate with existing subscription models?

Yes, Lago allows for the creation of hybrid plans, enabling companies to combine usage-based billing with existing subscription models. This provides flexibility in designing comprehensive pricing strategies.

What kind of control does Lago offer over billing data and infrastructure?

Lago is an open-source solution that can be deployed on a company's own infrastructure. This provides full control over scalability, data sovereignty, and compliance, which is particularly beneficial for enterprises and AI companies with strict data requirements.

Which teams within an organization benefit most from using Lago?

Engineering teams benefit from building billing without headaches, product teams can ship complex pricing faster, finance teams gain a single source of truth for all billing motions, and operations teams achieve better data management and efficiency.

Source: getlago.com

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