Provides an open-source billing API designed for product-led SaaS businesses to manage usage-based pricing, metering, and invoicing at scale. It streamlines complex billing processes by enabling real-time usage tracking, flexible pricing models, and automated invoice generation, reducing the need for custom-built solutions and legacy systems.
Funding
$22.1M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.



FVPTFounders
Product
Problem
Many product-led SaaS businesses struggle with the complexities of implementing and managing usage-based pricing models, often relying on custom-built solutions or outdated legacy systems. This can lead to inefficiencies in tracking real-time usage, creating flexible pricing plans, and automating invoice generation.
Solution
Lago provides an open-source billing API designed to streamline usage-based pricing, metering, and invoicing for product-led SaaS companies. The platform offers a scalable and modular architecture for metering and billing, suitable for companies at any stage. By connecting data sources directly to Lago, businesses can track usage in real-time, configure flexible pricing and packaging, and automate invoice generation. Lago's composable architecture allows integration with various internal systems and tools, including payment gateways, CRMs, and accounting software.
Target Audience
Lago primarily targets engineers, product managers, revenue teams, business operations, and finance leaders within Fintech, CPaaS, Artificial Intelligence, Cloud Infra, SaaS API, and B2C companies.
Features
- Real-time usage metering capable of ingesting up to 15,000 billing events per second
- Support for various pricing models, including pay-as-you-go and hybrid plans
- Coupon creation for engaging marketing campaigns and increased conversion rates
- Instant add-ons for one-time charges invoiced on the fly
- Automatic invoice generation based on configured plans
- Prepaid credit functionality for recurring revenue opportunities in pay-as-you-go models
- Open-source architecture allowing for customization and integration with existing systems
- Self-hosted and cloud-based deployment options