Icons8 provides an extensive ISO compliant icon library. The API allows developers to search and retrieve icons that can be used for template customization, build graphic and text editors, and to integrate with any application with customization features. The Icons8 API requires API Keys for authentication. Fees are paid on a monthly basis, and licensing is free for established open source projects.
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.