Hello We have a team of experienced Designer and developers.
We have seen your project description and we can do your project, with PHP WP integration or any other of your preferences.
For further details you can contact us.
My previous works includes working on Oauth API, payment gateways, and creating custom APIs,
We are a team of experienced developers and just started new company also we have done similar jobs before,
give me chance we can do your job well.