To spread your business you have to integrate third party API. and that's makes more reliable, convenient , high impression on your working area.
I have integrated so many api with different different site,However i have experience on third party API and that's makes more fantastic,Please feel free to ping me and provide your details and we will work together.
If you want to make like
Login with Facebook
Login with Google+
Login with Instagram
Login with Twitter
Login with linked
and Many more things related API i'll know very well how to done it!
*** Before ordering my Gig please contact me and discuss your project with us clearly