Lago
Lago is a Paris-based open-source billing infrastructure platform providing usage-based, subscription, and hybrid billing APIs for AI, SaaS, IoT, and enterprise customers, with self-hosted and cloud deployment options.
- Company typePrivate
- Founded2021
- HeadquartersParis, France
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Lago does
Lago is an open-source billing infrastructure company headquartered in Paris, France, founded in 2021 by former Qonto engineers Raffi Sarkissian and Anh-Tho Chuong. The company provides a billing platform that supports subscription, usage-based, and hybrid pricing models for B2B SaaS, AI, IoT/telco, and enterprise customers. Named customers span high-credibility logos including Mistral AI, PayPal, Groq, Synthesia, 1NCE, EPICOR, and HMS, alongside a long tail of startups and mid-market adopters.
The platform is built on a polyglot architecture: Ruby on Rails (API-only) for the core billing engine, Go for high I/O concurrency services, and Rust for CPU-bound jobs, with ClickHouse powering high-volume event storage and Kafka/Redpanda for real-time streaming. The system ingests up to 1 million billing events per second and exposes REST APIs, batch APIs, and ingestion via Kafka, Amazon Kinesis, and Amazon S3. Feature surface includes real-time usage metering, entitlements, hybrid billing, dunning, multi-entity invoicing, revenue analytics, and a white-label "Lago Embedded" offering. In late 2025 the company launched "Lago AI," three AI assistants (billing, finance, pricing) built on Mistral AI with an MCP server architecture exposing 52 API tools, plus an Agent SDK that wraps LLM provider clients to auto-emit token usage events.
Lago monetizes through three streams: a free, unlimited open-source self-hosted tier; a usage-based cloud-hosted subscription; and quote-based enterprise contracts with SLAs and premium features (minimum commitments, custom pricing units, credits alerts). Distribution combines product-led growth via GitHub (10K+ stars) and self-serve cloud with enterprise field sales for Fortune 500 deployments. Listings on AWS, Azure, and GCP marketplaces expand procurement channels. The company has raised $22 million in total disclosed funding across a Y Combinator pre-seed, a SignalFire-led seed, and a FirstMark-led Series A in March 2024.
Lago firmographics
Firmographics- Name
- Lago
- Legal name
- Lago
- Website
- https://getlago.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Lago is a Paris-based open-source billing infrastructure platform providing usage-based, subscription, and hybrid billing APIs for AI, SaaS, IoT, and enterprise customers, with self-hosted and cloud deployment options.
- Ownership category
- akta.pro rank
Lago industry classification
Industry- Product category
- Billing Infrastructure Software
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Software/SaaS Subscriptions (Consumer & Prosumer) (CRAFAIAB)
- akta.pro secondary industry
- Vendor & Contract Management (Software/Cloud) (BPAEAOAD)
Keywords
Where Lago is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Lago business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations
Revenue model
- Lago Cloud Subscription: Cloud-hosted billing platform with subscription pricing based on usage volume, event processing, and feature tiers. Supports monthly and annual billing cadences with premium features like minimum commitments, custom pricing units, and credits consumption alerts.
- Self-Hosted License: Self-hosted deployment option for enterprises requiring on-premises or VPC deployment. No revenue share model - customers host and operate Lago independently.
- Premium Features: Premium features including minimum commitment billing, custom pricing units (tokens, credits), credits consumption alerts, and progressive billing thresholds available as paid add-ons.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Open-source self-hosted tier with full feature access |
| Usage-based | Monthly | Cloud-hosted billing platform with usage-based pricing |
| Subscription | Annual | Enterprise tier with custom pricing, SLAs, and premium support |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels6 records
Lago product offering
Product offeringCore offering
Lago is an open-source, AI-native billing platform that enables SaaS, AI, IoT, and enterprise companies to manage usage-based, subscription, and hybrid pricing models. It provides real-time event ingestion (up to 1M events/second), automated invoicing with proration and tax compliance, entitlement management, dunning and cash collection, revenue analytics, and white-label embedded billing. Delivered as a managed cloud service or self-hosted deployment, it integrates with payment providers, ERPs, CRMs, and tax engines.
Product overview
Lago is an AI-native, open-source billing platform built as a unified system with modular capabilities. The core platform includes Usage Metering for real-time event ingestion (up to 1M events/second), Billing & Invoicing for automated invoice generation with hybrid pricing support, Entitlements for feature access control, Cash Collection for dunning and payment automation, and Revenue Analytics for cross-stream visibility. Additional modules include Lago Embedded (white-label billing for platforms), Lago AI (AI assistants for workflow automation and analytics), and a robust Integrations hub connecting to payment processors (Stripe, Adyen, GoCardless), ERPs (NetSuite), CRMs (Salesforce, HubSpot), and tax engines (Anrok, Avalara). The platform supports both cloud-hosted and self-hosted deployment, giving enterprises full infrastructure control.
Differentiator
Problem solved
Functional benefit
Brands
- Lago Open Source: Self-hosted, open-source billing infrastructure that can be deployed on any infrastructure
- Lago Cloud
- Lago AI
- Lago Embedded
Products and services
- Usage Metering Real-time metering platform that ingests up to 1M billing events per second and aggregates usage data for accurate consumption-based billing across any metric, including tokens, GPU hours, and device-level usage. Supports REST API, batch API, Kafka, Amazon Kinesis, and Amazon S3 delivery methods with automatic deduplication via transaction_id.
- Billing & Invoicing Automated invoice generation supporting hybrid pricing models (subscription + usage), proration, multi-currency, and global tax compliance. Includes consolidated invoices, credit notes, and one-off invoices for B2B SaaS, AI, and enterprise customers.
- Entitlements Feature access control managed directly in billing, allowing companies to gate services, features, geographies, or usage limits based on customer subscription tier.
- Cash Collection Flexible cash collection tools including automated dunning campaigns, payment retry logic, progressive billing thresholds, and webhook-triggered payment automation for hybrid billing models.
- Revenue Analytics Revenue analytics dashboard providing real-time visibility into usage, revenue streams, and billing data across self-serve and sales-led motions with export capabilities.
- Lago Embedded White-label billing solution for platforms and ecosystems, enabling marketplace operators to embed Lago's billing infrastructure into their own product under their own brand.
- Lago AI AI-powered billing intelligence featuring three assistants: Billing Assistant (automates workflows via natural language commands using 52 API tools), Finance Assistant (text-to-SQL for custom reports on Lago's billing data), and Pricing Assistant (strategic pricing advice). Built on Mistral AI with MCP server architecture.
- Self-Hosted Deployment Open-source self-hosted option allowing companies to deploy Lago on their own infrastructure (on-prem, VPC, or cloud), providing full data control and compliance for enterprises with strict data sovereignty requirements. Free unlimited usage for self-hosted deployments with full source code available on GitHub.
Quantifiable outcome
- 10 weeks from deployment to first production invoices (1NCE customer case)
- +3 more outcomes
Companies that use Lago
Customer profileNamed customers18 records
Segments5 records
Ideal customer profiles4 records
Lago technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration23 records
AI capability3 records
Feature6 records
Lago partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core.
- StripecoreLago integrates with Stripe for payment processing, allowing customers to use Stripe as their payment provider within the Lago billing platform. Stripe is a payment processor that handles payment collection and management.
- AdyencoreLago integrates with Adyen for enterprise payment processing, supporting global payment acceptance across 220+ payment methods.
- NetSuitecoreLago integrates with Oracle NetSuite for ERP synchronization, enabling automated invoice flow into NetSuite for accounting and financial reporting. 1NCE uses this integration for automated revenue recognition.
- SalesforcecoreLago integrates with Salesforce CRM for quote-to-cash automation, enabling billing data synchronization with customer relationship management workflows.
- AWS MarketplacecoreLago is available on AWS Marketplace, enabling AWS customers to procure and deploy Lago using their existing AWS commitments and streamline procurement.
- Azure MarketplacecoreLago is available on Azure Marketplace, enabling Microsoft Azure customers to deploy Lago within their cloud infrastructure.
- GCP MarketplacecoreLago is available on Google Cloud Platform Marketplace for GCP customers to provision and manage Lago deployments.
- ClickHousecoreLago uses ClickHouse as its high-performance event store for processing up to 1M events/second, enabling real-time billing analytics and event aggregation at scale.
Scale indicators7 records
Recent moves6 records
Expansion highlights6 records
Lago competitors and assessment
Company assessmentDirect peers
- Zuora: Zuora is a subscription economy platform offering billing, revenue recognition, and multi-entity monetization for large enterprises. It is a direct peer for Lago in the enterprise segment, particularly around complex, multi-entity, and compliance-heavy billing scenarios.
- Recurly: Recurly is a subscription management and billing platform serving SaaS, media, and consumer subscription businesses with dunning, revenue recognition, and tax automation. It competes with Lago on subscription-heavy workloads and is a frequent head-to-head alternative for mid-market SaaS buyers.
- Chargebee: Chargebee is a subscription billing and revenue management platform serving SaaS and subscription businesses with hybrid pricing, dunning, and tax automation. It overlaps directly with Lago on subscription + usage billing for SaaS, and is one of the most established mid-market alternatives.
- Paddle: Paddle is a merchant-of-record billing and subscription management platform handling payments, tax, and global compliance for SaaS companies. It competes with Lago on the global, tax-compliant billing axis, particularly for SaaS companies selling internationally.
- Metronome: Metronome is a usage-based billing platform built for modern SaaS and AI companies, offering real-time metering, hybrid pricing, and enterprise-grade revenue analytics. It competes head-to-head with Lago in AI and infrastructure customer segments and shares the same product-led / API-first DNA.
- Orb: Orb is an end-to-end usage-based billing platform purpose-built for AI and infrastructure companies, offering real-time metering, flexible pricing models, and a no-code plan editor. It is a direct competitor in Lago's strongest wedge: AI and consumption-based billing.
- Stripe Billing: Stripe Billing is the most direct competitor to Lago: it provides subscription, usage-based, and hybrid billing tightly bundled with Stripe Payments. It targets the same SaaS and AI customer base and is the default billing choice for the large majority of Lago's addressable market.
- Maxio: Maxio (formed from the merger of SaaSOptics and BillTrust) provides SaaS billing, subscription management, and revenue recognition. It overlaps with Lago on subscription billing and revenue analytics for B2B SaaS companies.
- BillingPlatform: BillingPlatform is an enterprise billing and revenue management solution supporting complex subscription, usage, and hybrid pricing models. It is comparable to Lago in serving large enterprises with complex, multi-entity billing requirements, though it skews more to traditional enterprise than to AI / PLG.
Emerging players
- Stigg: Stigg is an emerging usage-based billing and entitlements platform for SaaS, with a strong focus on entitlement management and product-led monetization. It is comparable to Lago's usage metering and entitlements modules and is increasingly positioned for AI-native SaaS customers.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Lago social profiles
Digital presenceLago compliance and trust
Trust signalCompliance1 record
Lago financial estimates
Financial estimateRevenue estimate
Valuation estimate
Lago leadership team
Management profileNumber of profiles
Profiles3 records
Lago funding detail
Funding detailFunding overview
Funding rounds3 records
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Lago M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Lago
What does Lago do?
Lago is an open-source, AI-native billing platform that enables SaaS, AI, IoT, and enterprise companies to manage usage-based, subscription, and hybrid pricing models. It provides real-time event ingestion (up to 1M events/second), automated invoicing with proration and tax compliance, entitlement management, dunning and cash collection, revenue analytics, and white-label embedded billing. Delivered as a managed cloud service or self-hosted deployment, it integrates with payment providers, ERPs, CRMs, and tax engines.
Is Lago a public or private company?
Lago is a private company. It is classified as venture growth investor backed and is currently operating.
When was Lago founded?
Lago was founded in 2021. It employs 11 to 50 people.
Where is Lago based?
Lago is headquartered in Paris, France, in the Europe region.
How does Lago make money?
Three revenue lines are on record. Lago Cloud Subscription is the primary driver. The others are self-Hosted License and premium Features.
Who are Lago's main competitors?
Direct peers on record are Zuora, Recurly, Chargebee, Paddle, Metronome, Orb, Stripe Billing, Maxio and BillingPlatform. Stigg is listed as an emerging player.
Does Lago have an API?
Yes. Lago provides a REST API for developers to build and automate billing workflows. The API supports event ingestion (up to 1M events/second), customer management, plan configuration, subscription management, invoice generation, usage tracking, wallet operations, webhooks, and analytics. Authentication uses Bearer tokens. Client libraries are available in Python, Node.js, Ruby, and Go. The Agent SDK supports LLM token billing by wrapping provider clients (AWS Bedrock, Mistral, OpenAI, Anthropic, Google Gemini) and automatically emitting token events to Lago. Developer documentation is at getlago.com/docs/api-reference/intro.
What industry is Lago in?
Lago's product category is Billing Infrastructure Software. Its primary akta.pro industry code is CRAFAIAB, Software/SaaS Subscriptions (Consumer & Prosumer), with a secondary code of BPAEAOAD, Vendor & Contract Management (Software/Cloud). Its NAICS code is 518 and its SIC code is 7372.