Bitcoin-Payments-Woocommerce

Free Bitcoin/Altcoins Payment Gateway Addon for WooCommerce 2.1+ (or higher). Accept USD, Bitcoin, Litecoin, Dogecoin, Speedcoin, Darkcoin, Vertcoin, Reddcoin, Feathercoin, Vericoin, Potcoin payments in WooCommerce. Direct Integration on your website. No Chargebacks, Global, Secure. All in automatic mode. Maintained by cryptoapi on GitHub, where it has earned 64 stars from the community.

It's actively developed around bitcoin, bitcoin-wallet, bitcoins, and is a solid reference for anyone building with these tools.