Metrics API that give DA, TF, Traffic, Keywords etc. ?

Hello,
I use DomDetailer in order to have TF, CF, RD, DA but I need an API to have the trafic et keywords positions on Google. I would also like the spam score of Moz.
Does someone know a reliable unofficial API to do that please ?
Thank you

Hello,
In order to have access to SEMRush API I need to pay 4000$/year. It's really not possible for my. Does someone know how can I have trafic and keywords of websites with an API ?
Thank you

I am currently working on an API for that