Braintree allows you to accept payments online. We offer a robust payment gateway, merchant account, secure credit card storage, subscription billing, simplified PCI compliance and the most developer friendly API in the industry,
Pcisecuritystandards.org: Official PCI Security Standards Council Site - Verify PCI Compliance, Download Data Security and Credit Card Security Standards
If you are a merchant of any size accepting credit cards, you must be in compliance with PCI Security Council standards. This site provides: credit card data security standards documents, PCIcompliant software and hardware, qualified security assessors, technical support, merchant guides and more.