Payum is an MIT-licensed open source project with its ongoing development made possible entirely by the support of community and our customers. If you'd like to join them, please consider:
Reduce Your Development Time with Payum integrating more than 50 payment services simultaneously. Payum is one of the most popular bug-free solution that has over 1 000 000 downloads already. It is friendly for all top PHP frameworks and was successfully installed and tested by thousands of developers worldwide
Payum is released under the MIT License.