BTCPay Server is a free, open-source, self-hosted Bitcoin payment processor for accepting on-chain and Lightning payments, with invoicing, POS, and API automation.

7.7k stars2k forksMITlast commit Actively maintained
Bitcoin payment processor for businesses offering hosted checkout, invoices, payment links, REST APIs, Lightning Network support, webhooks, and optional automatic fiat conversion/settlement and payouts to merchant accounts.
BTCPay Server is a free, open-source, self-hosted Bitcoin payment processor for accepting on-chain and Lightning payments, with invoicing, POS, and API automation.

7.7k stars2k forksMITlast commit Actively maintained
Self-hosted, open-source, non-custodial crypto payment processor supporting major coins, smart chains, and stablecoins with merchant APIs and an admin panel.

982 stars172 forksMITlast commit Actively maintained
Open-source, non-custodial crypto payment gateway for e-commerce and services. Invoice-based API, webhooks, plugins, multi-currency support and multipayouts.

611 stars152 forksGPL-3.0last commit Actively maintained
DePay provides JavaScript widgets and an SDK to accept multi-chain crypto payments directly to wallets, with real-time token conversion and broad wallet support.

133 stars45 forksMITlast commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 4 of 4 shipped a commit in the last six months. Licences in this list: MIT, GPL-3.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Billing & Subscriptions.