Epusdt 🧰 Platform Open source

Epusdt (GMPay) is an open-source (GPL-3.0), self-hosted payment gateway written in Go that lets a site accept cryptocurrency, primarily USDT, across multiple blockchain networks. It exposes a hosted checkout page plus an EPay-compatible redirect API, so it can be dropped into an existing storefront or membership site that already speaks the EPay protocol, with async payment callbacks and Telegram notifications for order alerts.

Because it is self-hosted, there is no platform fee or revenue share to Epusdt itself; the cost is running and securing the server, plus whatever the underlying blockchain network charges in transaction fees, and whatever a crypto exchange or off-ramp charges to convert to fiat. Publishers use it as an alternative or supplement to Stripe/PayPal for buyers who prefer to pay in crypto and for merchants in regions with limited access to conventional card processing.

This is developer-facing infrastructure, not a managed merchant-of-record service: there is no dashboard-only onboarding, no built-in tax handling, and no customer support line if a deployment breaks or a chain integration needs debugging. Documentation is thin and largely community-maintained, and self-custody of crypto payments means you are responsible for wallet security, chargebacks do not exist in the traditional sense, and refunds are manual.

Best for technically capable teams who already accept or want to accept stablecoin/crypto payments and are comfortable self-hosting Go infrastructure, rather than publishers who want a plug-and-play checkout.