Introduction

What is RevKeen?

RevKeen is the billing platform built for margin visibility. It handles one-off charges, recurring subscriptions, invoices, and checkout links -- with real-time margin intelligence built in. Unlike traditional payment platforms that only show revenue, RevKeen tracks both what you earn and what it costs -- per transaction, per customer, per product.

The Problem with Traditional Billing Platforms

Most billing platforms tell you the same story: revenue in, subscriptions active, MRR growing. But they leave out half the picture -- your actual profitability.

• What did that $100 subscription actually cost to process?
• Which pricing tiers are margin-positive vs margin-negative?
• Are your highest-revenue customers also your most profitable?

RevKeen answers these questions in real-time.

Payment Service Provider vs Merchant of Record

When choosing a billing platform, you are making a fundamental decision about who owns your customer relationship.

Merchant of Record (MoR) Platforms

Platforms like Polar, Paddle, and Lemon Squeezy operate as Merchants of Record. This means:

Payment Service Provider (PSP) Model -- RevKeen

RevKeen operates as a Payment Service Provider, which means:

Why More Responsibility is Actually More Freedom

MoR platforms market "we handle everything" as a benefit. But consider what you are trading away:

• Your Customer Relationship -- With MoR, customers are not buying from you -- they are buying from Paddle or Polar. Your brand becomes a layer, not the merchant.
• Your Pricing Flexibility -- MoR platforms dictate what pricing models they support. Need custom billing logic? You are limited to their capabilities.
• Your Margins -- At 4-5% fees, MoR platforms take a significant cut. On $100K ARR, that is $4-5K annually vs $1.7K with RevKeen.
• Your Exit Options -- Migrating from a MoR means customers have to update payment methods. With RevKeen, your payment relationships stay intact.

Tax Compliance Without the Lock-in

"But what about international taxes?" This is the main reason companies choose MoR platforms.

RevKeen integrates with Quaderno to give you tax compliance without surrendering your customer relationships:

• Automatic tax calculation for VAT, GST, and US Sales Tax across 100+ countries
• Threshold monitoring alerts you when you are approaching registration requirements in specific jurisdictions
• Tax receipts and invoices generated automatically with correct local tax treatment
• B2B reverse charge handled correctly for EU VAT-registered businesses

You get the compliance, you keep the control.

The RevKeen Difference: Margin Intelligence

Here is what no other billing platform shows you:

Revenue:        $10,000
Processing:       -$100  (1.0%)
Platform fee:     -$100  (1.0%)
Refunds:          -$200
Chargebacks:       -$50
----------------------------
Actual margin:   $9,550  (95.5%)

RevKeen captures every cost associated with your billing:

• Payment processing fees from your gateway
• Platform fees and transaction costs
• Refund impacts and chargeback fees
• Failed payment retry costs

Know what you keep, not just what you earn.

Who RevKeen is Built For

Any business that collects payments and wants to understand their true margins:

• Developers and companies needing payment integration -- SaaS, web businesses, digital products, marketplaces. API-first with TypeScript SDK, webhooks, and MCP server.
• Service businesses with recurring billing -- healthcare, wellness, sports, coaching, beauty, co-working, or any business with memberships and repeat payments.

What unites both: get paid, pay less (1.7% vs 3.6-5%), and see what you keep with margin intelligence.

Compare the Numbers

Getting Started

Ready to see what you are actually keeping?

• Quickstart -- Get your first checkout live in under 10 minutes
• API Reference -- Explore the full RevKeen API