Ultra-cheap Polygon payments with stablecoin support.
Polygon's fees are fractions of a cent, which makes it ideal for smaller crypto payments and stablecoin invoices. My Crypto Server accepts native POL plus USDC, USDT, and DAI on Polygon and settles it all directly to your wallet.
At Polygon's gas costs, even a few-dollar order pays out cleanly, so it's a strong default for stablecoin checkout where card fees would otherwise dominate.
Native POL plus USDC, USDT, and DAI on Polygon.
How it works
Clone the repo, push it to Vercel, attach any Postgres database, and add your Alchemy API key. You're live in about an hour with no approval or underwriting to wait on.
Add the extended public key from a wallet you control. Every Polygon payment address the checkout shows is derived from your own seed, so funds are always yours.
Price the order in USD from the dashboard, the REST API, or the TypeScript SDK. The hosted checkout shows the customer a live Polygon amount, a QR code, and a countdown.
The customer pays from any wallet, the server confirms on-chain, and a signed webhook hits your backend so fulfilment fires automatically.
No 2.9% + 30¢, no monthly minimum, no reserve. The only cost is network gas, which the customer pays, so the full order amount lands in your wallet.
Every payment address derives from a seed only you hold and settles directly to you. There's no custodian, no payout schedule, and no balance anyone can hold.
Stablecoin amounts are matched to the order's dollar price, so a $200 order is exactly $200 with no volatility to manage and no exchange in the loop.
The server watches the chain, waits for reorg-aware confirmations, and fires a signed webhook to your backend the moment a payment clears. No watcher process to babysit.
USDC, USDT, and DAI are all supported on Polygon and settle 1:1 to your USD order price, alongside native POL.
Yes. Polygon fees are typically a fraction of a cent, so it's well suited to low-value orders and micro-invoices where a card fee would be a large share of the sale.
Always. Addresses derive from your seed and payments land directly with you; there's no custodian or payout schedule.
$699 one-time with code MCSINTRO $999, with every v1 update included, 0% platform fees, and free installation.
Read the docs