The Payment Stack for Orders, the Future of Commerce
Stop building your business around payments. Flint centers your world on Orders — the way commerce actually works. Manage the entire lifecycle from cart to fulfillment in one unified system, without gluing together fragmented payment intents.
const order = await flint.orders.create({
customer: "sarah@example.com",
line_items: [
{
name: "Organic Coffee Beans",
sku: "COFFEE-001",
quantity: 2,
unit_price: 1999
}
],
discounts: [{...}],
fulfillment: [{...}]
})
// ✨ Total, Tax, & Shipping calculated automatically
// ✨ Payment, Refund, & Fulfillment state all in oneTrusted by forward-thinking commerce companies
How It Works
Three simple steps. Zero complexity.
Create an Order
Define your products, quantities, and customer details. Add discounts, shipping, and tax rules—all in one unified object.
Customer Pays
Your customer completes payment through our hosted checkout or your own UI. We handle card processing, wallets, and bank transfers.
Track & Fulfill
Manage the entire lifecycle: payments, refunds, partial fulfillments, and shipping—all synchronized automatically in one place.
No credit card required • 5 minute setup
Why Payment-First APIs Fail
Traditional payment processors focus on moving money. But commerce is about moving products. When you treat payments as the source of truth, you end up with a mess of reconciliation, tax nightmares, and fragmented data.
Spaghetti Code
Managing order state across checkout, webhooks, and your database is error-prone.
Legacy Payment-First APIs
Not built for modern commerce. Impossible to handle order concepts like multiple payments and fulfillments without extra complexity.
Reconciliation Hell
'Why doesn't the payment charge match the cart total?' Be prepared to answer this daily.
Manual Calculations
Writing your own tax and discount logic? Hope you enjoy maintaining it forever.
Build Payment-First Order-First Platforms
The industry is moving from raw payment processing to order-centric architectures. See what you miss when you stick to the old model.
Payment-First (Legacy Processors)
You start with a transaction. Then you have to manually link it to items, calculate tax yourself, and hope the totals match your database.
- Disconnect between money and merchandise
- "Dumb" charges with no line-item context
- Reconciliation is a manual, error-prone nightmare
- Impossible for AI to reason about (just numbers)
Order-First (Flint)
You start with an Order. Payments, fulfillment, and tax are just states of that order. Everything remains synchronized automatically.
- Unified source of truth for Cart, Payment, & Fulfillment
- Rich context: Items, Tax, Shipping, & Metadata
- Automatic reconciliation (Totals always match)
- Perfect for AI (Structured, semantic data)
Everything You Need to
Run a Platform
A complete commerce suite. From checkout to payouts, we've got you covered.
Developer First
Typed SDKs, webhooks, and sandbox environments. Built for builders.
Unified Payments
Accept cards, wallets, and bank transfers with a single API.
Merchant Dashboard
Give your users a beautiful dashboard to manage their business.
Payment Links
No-code checkout pages. Generate a link, share it, get paid.
Built for AI Agents
Unified state and predictable transitions allow AI agents to autonomously manage orders, refunds, and fulfillment.
Instant Payouts
Get funds to your sellers faster with instant payout options.
APIs That Feel Like
Magic
Intuitive APIs that developers love. Perfect for humans and AI agents alike.
Start a transaction with line items
Redirect user to payment page
Save details for later
const order = await flint.orders.create({
line_items: [
{
name: "Premium Widget",
amount: 2999,
currency: "USD"
}
],
customer: "cus_123"
})Ready to experience the difference?
Start Free, Scale as You Grow
No setup fees, no monthly minimums. Only pay for what you use.
Starter
Perfect for side projects and testing
- Up to 100 orders/month
- All API features
- Sandbox environment
- Email support
- Standard checkout
- Basic analytics
Growth
For growing businesses
- Unlimited orders
- All API features
- Custom branding
- Priority support
- Advanced analytics
- Webhook retries
- Multi-currency
- Tax automation
Enterprise
For high-volume platforms
- Everything in Growth
- Custom fee structure
- Dedicated account manager
- 24/7 phone support
- SLA guarantee
- Custom integrations
- Advanced security
- Compliance assistance
All plans include fraud detection, PCI compliance, and automatic updates
Start Building the Future
of Commerce Today
Join forward-thinking companies shipping order-first platforms. Get your API keys instantly and start processing orders in minutes.