Apipay enables tools to monetize applications by setting up payment plan widgets. The payment plan widget will be added to the selected page, and can be hosted on-site or as a dynamically inserted iFrame. Apipay offers payment plan selector features, Ethereum payment support, and recurring billing.
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.