$
npm install @billing-io/sdk

npm install — that's the hard part.

Payments that keep working as you grow. Money goes straight to your wallet. Host on your domain. Embed in your product. No freezes. No surprises.

Get your API keyRead the docs

your-app.com

via billing.io secure checkout

Secure
$20.00USDT
Fixed
NetworkUSDT · Tron

Send to

TN7hMd7PKEaZLMZe8eQhWpGjEpJJFbGSxE

Send only USDT on the Tron network

Waiting for payment
Live
Pay with MetaMask
Pay with Trust Wallet
billing.io

No personal details · Secure · Instant

Hosted now · Embeddable when you’re ready

The problem

You built the product. Someone else controls the revenue.

You build something people want to pay for — then hand the payment flow to a provider you can’t influence.

Shutdowns don’t come with warnings

One policy change. One risk flag. One reclassification. Your provider cuts you off. Nothing in your codebase can fix it.

Revenue sits in someone else’s account

Customer paid yesterday. Money confirmed. Won’t reach your bank for days — your processor batches settlements on their schedule, not yours.

You’re building on rented infrastructure

Your billing stack depends on one vendor’s uptime, policies, and willingness to serve your category. That’s not infrastructure you own.

How billing.io feels

Payments that fade into the background.

The best infrastructure is the kind you forget about. Revenue keeps moving. Nothing changes when you grow. The system runs.

Coverage

Built for businesses
others won’t support.

Modern companies don’t fit legacy assumptions. billing.io is infrastructure for teams operating at the edges — globally, at scale, and without permission layers.

01

Real edge cases

02

Global customers

03

Modern revenue models

Increase your conversion

Payments that feel native to your product.

Checkout should strengthen your brand and reduce friction — not introduce unfamiliar flows.

Your brand, not ours

Branded checkout on your domain, consistent with your product.

Fewer drop-offs

One-click checkout with MetaMask and Trust Wallet — beautifully designed.

Higher completion rates

A flow users already trust.

All-in-one solution

Access fiat when you qualify.

Every operator on billing.io starts with stablecoins — predictable, immediate, no permission required. Fiat access is available after meaningful volume. Same system. Expanded reach.

01

Stablecoins first

USDT and USDC with immediate settlement. Available from your first integration.

02

Volume builds credibility

Your transaction history is your credential. Process $10k to qualify for expansion.

03

Fiat access introduced

Traditional rails after proven demand. No migration, no new contracts.

For developers

Integrate once, get paid.

A few lines of code to start. Revenue keeps moving after.
Step 1

Create a checkout

Your customer gets a hosted payment page. You get a redirect URL.

import { Billing } from "@billing-io/sdk";

const billing = new Billing("sk_live_...");

const checkout = await billing.checkouts.create({
  amount_usd: 20,
  chain: "tron",
  token: "USDT",
});

res.redirect(checkout.url);
app.post("/webhooks/billing", async (req, res) => {
  const event = billing.webhooks.verify(req);

  if (event.type === "checkout.completed") {
    // Grant access, ship product, unlock credits
  }

  res.sendStatus(200);
});
Step 2

Get notified

Your server receives a signed event when payment completes. Fulfill the order.

Also available in Python, Go, Ruby, and Java. View docs

Get paid without worrying what breaks later.

Get your API keyRead the docs

Used daily in live production environments.