RevKeen for Developers
API-first billing with TypeScript SDK, webhooks, MCP server, and 1.7% transaction fees.
- Why developers are switching from Stripe to RevKeen
- How RevKeen's API, SDK, webhooks, and MCP server work
- Cost comparison: 1.7% vs 3.6-5% at scale
- How to integrate RevKeen into your stack
Built for Developers
RevKeen is API-first. Every feature available in the dashboard is available through the REST API. Type-safe TypeScript SDK. Real-time webhooks. AI-native MCP server. Idempotency built in.
Developer Tools (All Live)
| Tool | Status | Description |
|---|---|---|
| REST API | Live | Full CRUD for every resource |
| TypeScript SDK | Live | Type-safe, auto-generated |
| Python SDK | Live | Type-safe, async/await support |
| PHP SDK | Live | Laravel, WordPress, Symfony, PHP 8.1+ |
| Webhooks | Live | Real-time event notifications |
| MCP Server | Live | AI-native integration |
| Idempotency | Live | Safe retries built in |
| API Reference | Live | Interactive docs at api.revkeen.com |
Quick Start
If you're not a developer, you don't need any of this. RevKeen's dashboard lets you create payment links, invoices, and subscriptions without writing code. Share this page with your developer if you need a custom integration.
Cost at Scale
The difference between 1.7% and 3.6-5% compounds as you grow:
| MRR | Annual RevKeen | Annual Stripe+Billing | Annual Paddle | Savings vs Stripe | Savings vs Paddle |
|---|---|---|---|---|---|
| £5K | £1,020 | £2,160 | £3,000 | £1,140 | £1,980 |
| £10K | £2,040 | £4,320 | £6,000 | £2,280 | £3,960 |
| £25K | £5,100 | £10,800 | £15,000 | £5,700 | £9,900 |
| £50K | £10,200 | £21,600 | £30,000 | £11,400 | £19,800 |
| £100K | £20,400 | £43,200 | £60,000 | £22,800 | £39,600 |
At £50K MRR, the annual saving vs Stripe is £11,400 -- that's engineering headcount, marketing budget, or extended runway.
RevKeen doesn't just save you on fees -- it shows you per-customer and per-product profitability that Stripe, Paddle, and Polar don't provide. You can answer "which pricing tier has the best margin?" with real data, not estimates.
The Merchant of Record Question
If you're evaluating Paddle or Lemon Squeezy, you're likely considering Merchant of Record (MoR) for tax compliance.
RevKeen's approach:
- 1.7% fee (not 5%)
- Quaderno integration for VAT automation (Pro and Unlimited)
- You remain the seller of record -- more control
- Gateway-agnostic -- no vendor lock-in
When MoR may be better: If you sell into 50+ countries with complex indirect tax and don't want to manage compliance at all, MoR at 5% may be worth the premium. RevKeen is honest about this trade-off.
When RevKeen is better: If you sell primarily in the UK/EU, or you want to control the merchant relationship, or you simply want to keep more of your revenue -- 1.7% + Quaderno is significantly cheaper than 5% MoR.
Gateway-Agnostic Architecture
Stripe locks you into their ecosystem. RevKeen's adapter pattern means your billing logic isn't tied to a single payment processor. Standard and Pro plans include 1 gateway. Unlimited allows adding more. If rates change, RevKeen can route to alternatives without rebuilding your integration.
Integrations
| Integration | What it does | Status |
|---|---|---|
| Xero | Sync invoices and payments with fee decomposition | Live |
| QuickBooks | Sync invoices and payments | Live |
| Slack | Payment notifications in Slack channels | Live |
| Zapier | Connect to 5000+ apps | Coming Soon |
| WooCommerce | E-commerce checkout plugin | Coming Soon |
All available via the marketplace. Availability depends on plan.