The SEO metrics API gathers metrics used for SEO from different services. These metrics include backlinks, ranking, domain-age, indexed pages and something more. The API is currently in BETA and offers free access. Once the API will become stable the access will be changed into a Freemium payment model.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.