[API] filter products by attributes

Using the API v3 (legacy) – how can i fetch products by attributes?

For example:
http://www.domain.com/products?filter%5Bpa_ATTname%5D=green&fields=id,attributes

I read all documentations, an familer with the new WP-REST, but this one only sets endpoint of attributes…

https://wordpress.org/plugins/woocommerce/