BTCPay Server

The software provides a self‑hosted, open‑source processor for accepting Bitcoin and other cryptocurrencies directly from customers. It enables peer‑to‑peer payments without intermediaries, charging only the network fee, and supports both on‑chain transactions and Lightning Network channels. Users retain full control of private keys through a built‑in wallet that can integrate hardware wallets, and the system offers Tor connectivity and multi‑tenant hosting for shared use.

It targets merchants, freelancers, and organizations that need invoicing, point‑of‑sale, donation buttons, or crowdfunding tools without relying on third‑party payment services. The platform includes invoice management, payment‑request generation, and API endpoints for automating store, invoice, and user operations, making it suitable for e‑commerce integrations and accounting workflows.

Distinctive aspects are its non‑custodial design, zero‑percent merchant fees, and the ability to run on personal hardware or cloud instances. The project is released under the MIT license, is actively maintained, and encourages community contributions through public documentation, issue tracking, and a chat channel.